BUFR TABLE CODE/FLAG - WMO AND LOCAL (NCEP) DESCRIPTORS

BUFR TABLE CODE/FLAG - ASSOCIATED WITH TABLE B AND USED IN THE NCEP OBSERVATIONAL DATABASE AND PREPBUFR AND PREPFITS FILES

BASED ON BUFR MASTER TABLE 0 (WMO), VERSION 41 IMPLEMENTED ON November 30, 2023

LINKS TO OTHER VERSION 41 TABLES: A B D

LINKS TO OTHER CODE/FLAG TABLE VERSIONS: 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41

(This webpage was generated: 2023/11/30 16:42:07)

0-01-003 - WMOR

WMO Region number/geographical area

Code figure	Meaning
0	Antarctica
1	Region I
2	Region II
3	Region III
4	Region IV
5	Region V
6	Region VI
7	Missing value

0-01-007 - SAID

Satellite identifier

Code figure	Meaning
0	Reserved
1	ERS 1
2	ERS 2
3	METOP-1 (Metop-B)
4	METOP-2 (Metop-A)
5	METOP-3 (Metop-C)
6-19	Reserved
20	SPOT1
21	SPOT2
22	SPOT3
23	SPOT4
24	Metop-D
25	Metop-E
26	Metop-F
27	Metop-G
28	Metop-H
29	Metop-I
30-39	Reserved
40	OERSTED
41	CHAMP
42	TerraSAR-X
43	TanDEM-X
44	PAZ
45	ALTIUS
46	SMOS
47	CryoSat-2
48	AEOLUS
49	EarthCARE
50	METEOSAT 3
51	METEOSAT 4
52	METEOSAT 5
53	METEOSAT 6
54	METEOSAT 7
55	METEOSAT 8
56	METEOSAT 9
57	METEOSAT 10
58	METEOSAT 1
59	METEOSAT 2
60	ENVISAT
61	Sentinel 3A
62	Sentinel 1A
63	Sentinel 1B
64	Sentinel 5P
65	Sentinel 3B
66	Sentinel 6A
67	Sentinel 6B
68	Sentinel 1C
69	Sentinel 1D
70	METEOSAT 11
71	METEOSAT 12
72	METEOSAT 13
73	METEOSAT 14
74	METEOSAT 15
75	METEOSAT 16
76	METEOSAT 17
77-119	Reserved
120	ADEOS
121	ADEOS II
122	GCOM-W1
123-139	Reserved
140	GOSAT
141-149	Reserved
150	GMS 3
151	GMS 4
152	GMS 5
153	GMS
154	GMS-2
155-170	Reserved
171	MTSAT-1R
172	MTSAT-2
173	Himawari-8
174	Himawari-9
175-199	Reserved
200	NOAA 8
201	NOAA 9
202	NOAA 10
203	NOAA 11
204	NOAA 12
205	NOAA 14
206	NOAA 15
207	NOAA 16
208	NOAA 17
209	NOAA 18
210-219	Reserved
220	LANDSAT 5
221	LANDSAT 4
222	LANDSAT 7
223	NOAA 19
224	NPP
225	NOAA 20
226	NOAA 21
227	TROPICS-02
228	TROPICS-03
229	TROPICS-04
230-239	Reserved
240	DMSP 7
241	DMSP 8
242	DMSP 9
243	DMSP 10
244	DMSP 11
245	DMSP 12
246	DMSP 13
247	DMSP 14
248	DMSP 15
249	DMSP 16
250	GOES 6
251	GOES 7
252	GOES 8
253	GOES 9
254	GOES 10
255	GOES 11
256	GOES 12
257	GOES 13
258	GOES 14
259	GOES 15
260	JASON 1
261	JASON 2
262	JASON 3
263	TROPICS-05
264	TROPICS-06
265	GeoOptics CICERO OP1
266	GeoOptics CICERO OP2
267	PlanetiQ GNOMES-A
268	PlanetiQ GNOMES-B
269	Spire Lemur 3U Cubesat
270	GOES 16
271	GOES 17
272	GOES 18
273	GOES 19
274-280	Reserved
281	QUIKSCAT
282	TRMM
283	CORIOLIS
284	TROPICS-07
285	DMSP17
286	DMSP18
287	DMSP-19
288	GPM-core
289	Orbiting Carbon Observatory - 2 (OCO-2, NASA)
290-309	Reserved
310	GOMS 1
311	GOMS 2
312-319	Reserved
320	METEOR 2-21
321	METEOR 3-5
322	METEOR 3M-1
323	METEOR 3M-2
324	METEOR-M N2
325	METEOR-M N2 2
326-340	Reserved
341	RESURS 01-4
342-409	Reserved
410	KALPANA-1
411-420	Reserved
421	Oceansat-2
422	ScatSat-1
423	Oceansat-3
424-429	Reserved
430	INSAT 1B
431	INSAT 1C
432	INSAT 1D
433-439	Reserved
440	Megha-Tropiques
441	SARAL
442-449	Reserved
450	INSAT 2A
451	INSAT 2B
452	INSAT 2E
453-469	Reserved
470	INSAT 3A
471	INSAT 3D
472	INSAT 3E
473	INSAT 3DR
474	INSAT 3DS
475-499	Reserved
500	FY-1C
501	FY-1D
502	Hai Yang 2A (HY-2A, SOA/NSOAS China)
503	Hai Yang 2B (HY-2B, SOA/NSOAS China)
504	Hai Yang 2C (HY-2C, SOA/NSOAS China)
505	Hai Yang 2D (HY-2D, SOA/NSOAS China)
506-509	Reserved
510	FY-2
511	Reserved
512	FY-2B
513	FY-2C
514	FY-2D
515	FY-2E
516	FY-2F
517	FY-2G
518	FY-2H
519	Reserved
520	FY-3A
521	FY-3B
522	FY-3C
523	FY-3D
524	FY-3E
525	FY-3F
526	FY-3G
527-529	Reserved
530	FY-4A
531	FY-4B
532-699	Reserved
700	TIROS M (ITOS 1)
701	NOAA 1
702	NOAA 2
703	NOAA 3
704	NOAA 4
705	NOAA 5
706	NOAA 6
707	NOAA 7
708	TIROS-N
709	TROPICS-01 (Pathfinder)
710	GOES (SMS 1)
711	GOES (SMS 2)
712-719	Reserved
720	TOPEX
721	GFO
722	GRACE A
723	GRACE B
724	COSMIC-2 P1
725	COSMIC-2 P2
726	COSMIC-2 P3
727	COSMIC-2 P4
728	COSMIC-2 P5
729	COSMIC-2 P6
730	Reserved
731	GOES 1
732	GOES 2
733	GOES 3
734	GOES 4
735	GOES 5
736-739	Reserved
740	COSMIC-1
741	COSMIC-2
742	COSMIC-3
743	COSMIC-4
744	COSMIC-5
745	COSMIC-6
746	DMSP 1
747	DMSP 2
748	DMSP 3
749	DMSP 4
750	COSMIC-2 E1
751	COSMIC-2 E2
752	COSMIC-2 E3
753	COSMIC-2 E4
754	COSMIC-2 E5
755	COSMIC-2 E6
756-760	Reserved
761	NIMBUS 1
762	NIMBUS 2
763	NIMBUS 3
764	NIMBUS 4
765	NIMBUS 5
766	NIMBUS 6
767	NIMBUS 7
768-779	Reserved
780	ERBS
781	UARS
782	EARTH PROBE
783	TERRA
784	AQUA
785	AURA
786	C/NOFS
787	CALIPSO
788	CloudSat
789	SMAP
790-799	Reserved
800	SUNSAT
801	International Space Station (ISS)
802	CFOSAT
803	GRACE C (GRACE-FO)
804	GRACE D (GRACE-FO)
805-809	Reserved
810	COMS
811	GEO-KOMPSAT-2A
812	SCISAT-1
813	ODIN
814	GEO-KOMPSAT-2B
815-819	Reserved
820	SAC-C
821	SAC-D
822-824	Reserved
825	KOMPSAT-5
826-849	Reserved
850	Combination of TERRA and AQUA
851	Combination of NOAA 16 to NOAA 19
852	Combination of METOP-1 to METOP-3
853	Combination of METEOSAT and DMSP
854	Non-specific mixture of geostationary and low earth orbiting satellites
855	Combination of INSAT 3D and INSAT 3DR
856	Combination of Sentinel-3 satellites
857-1022	Reserved
1023	Missing value

0-01-024 - WSPDS

Wind speed source

Code figure	Meaning
0	No wind speed data available
1	AMSR-E data
2	TMI data
3	NWP: ECMWF
4	NWP: UK Met Office
5	NWP: NCEP
6	Reference climatology
7	ERS_Scatterometer
8-30	Reserved
31	Missing value

0-01-028 - AODS

Aerosol optical depth (AOD) source

Code figure	Meaning
0	No AOD data available
1	NESDIS
2	NAVOCEANO
3	NAAPS
4	MERIS
5	AATSR
6-30	Reserved
31	Missing value

0-01-029 - SSIS

SSI source

Code figure	Meaning
0	No SSI data available
1	MSG_SEVIRI
2	GOES East
3	GOES West
4	ECMWF
5	NCEP
6	UK Met Office
7-30	Reserved
31	Missing value

0-01-031 - GCLONG

Identification of originating/generating centre

Code figure	Meaning
0	WMO Secretariat
1	Melbourne
2	Melbourne
3	Melbourne
4	Moscow
5	Moscow
6	Moscow
7	U.S. National Weather Service, National Centres for Environmental Prediction (NCEP)
8	U.S. National Weather Service Telecommunications Gateway (NWSTG)
9	U.S. National Weather Service - Other
10	Cairo (RSMC)
11	Cairo (RSMC)
12	Dakar (RSMC)
13	Dakar (RSMC)
14	Nairobi (RSMC)
15	Nairobi (RSMC)
16	Casablanca (RSMC)
17	Tunis (RSMC)
18	Tunis Casablanca (RSMC)
19	Tunis Casablanca (RSMC)
20	Las Palmas
21	Algiers (RSMC)
22	ACMAD
23	Mozambique (NMC)
24	Pretoria (RSMC)
25	La Réunion (RSMC)
26	Khabarovsk (RSMC)
27	Khabarovsk (RSMC)
28	New Delhi (RSMC)
29	New Delhi (RSMC)
30	Novosibirsk (RSMC)
31	Novosibirsk (RSMC)
32	Tashkent (RSMC)
33	Jeddah (RSMC)
34	Tokyo (RSMC), Japan Meteorological Agency
35	Tokyo (RSMC), Japan Meteorological Agency
36	Bangkok
37	Ulaanbaatar
38	Beijing (RSMC)
39	Beijing (RSMC)
40	Seoul
41	Buenos Aires (RSMC)
42	Buenos Aires (RSMC)
43	Brasilia (RSMC)
44	Brasilia (RSMC)
45	Santiago
46	Brazilian Space Agency INPE
47	Colombia (NMC)
48	Ecuador (NMC)
49	Peru (NMC)
50	Venezuela (NMC)
51	Miami (RSMC)
52	Miami (RSMC), National Hurricane Center
53	MSC Monitoring
54	Montreal (RSMC)
55	San Francisco
56	ARINC Centre
57	U.S. Air Force Global Weather Central
58	Fleet Numerical Meteorology and Oceanography Center, Monterey, CA, USA
59	NOAA Forecast Systems Laboratory, Boulder, CO, USA
60	United States National Centre for Atmospheric Research (NCAR)
61	Service ARGOS - Landover
62	U.S. Naval Oceanographic Office
63	International Research Institute for Climate and Society (IRI)
64	Honolulu (RSMC)
65	Darwin (RSMC)
66	Darwin (RSMC)
67	Melbourne (RSMC)
68	Reserved
69	Wellington (RSMC)
70	Wellington (RSMC)
71	Nadi (RSMC)
72	Singapore
73	Malaysia (NMC)
74	UK Meteorological Office, Exeter (RSMC)
75	UK Meteorological Office, Exeter (RSMC)
76	Moscow (RSMC)
77	Reserved
78	Offenbach (RSMC)
79	Offenbach (RSMC)
80	Rome (RSMC)
81	Rome (RSMC)
82	Norrköping
83	Norrköping
84	Toulouse (RSMC)
85	Toulouse (RSMC)
86	Helsinki
87	Belgrade
88	Oslo
89	Prague
90	Episkopi
91	Ankara
92	Frankfurt/Main
93	London (WAFC)
94	Copenhagen
95	Rota
96	Athens
97	European Space Agency (ESA)
98	European Centre for Medium-Range Weather Forecasts (ECMWF)
99	De Bilt
100	Brazzaville
101	Abidjan
102	Libya (NMC)
103	Madagascar (NMC)
104	Mauritius (NMC)
105	Niger (NMC)
106	Seychelles (NMC)
107	Uganda (NMC)
108	Tanzania (NMC)
109	Zimbabwe (NMC)
110	Hong-Kong, China
111	Afghanistan (NMC)
112	Bahrain (NMC)
113	Bangladesh (NMC)
114	Bhutan (NMC)
115	Cambodia (NMC)
116	Democratic People's Republic of Korea (NMC)
117	Islamic Republic of Iran (NMC)
118	Iraq (NMC)
119	Kazakhstan (NMC)
120	Kuwait (NMC)
121	Kyrgyzstan (NMC)
122	Lao People's Democratic Republic (NMC)
123	Macao, China
124	Maldives (NMC)
125	Myanmar (NMC)
126	Nepal (NMC)
127	Oman (NMC)
128	Pakistan (NMC)
129	Qatar (NMC)
130	Republic of Yemen (NMC)
131	Sri Lanka (NMC)
132	Tajikistan (NMC)
133	Turkmenistan (NMC)
134	United Arab Emirates (NMC)
135	Uzbekistan (NMC)
136	Viet Nam (NMC)
137-139	Reserved
140	Bolivia (NMC)
141	Guyana (NMC)
142	Paraguay (NMC)
143	Suriname (NMC)
144	Uruguay (NMC)
145	French Guyana
146	Brazilian Navy Hydrographic Centre
147	COmision Nacional de Actividades Espaciales (CONAE) - Argentina
148	Brazilian Department of Airspace Control - DECEA
149	Reserved
150	Antigua and Barbuda (NMC)
151	Bahamas (NMC)
152	Barbados (NMC)
153	Belize (NMC)
154	British Caribbean Territories Centre
155	San Jose
156	Cuba (NMC)
157	Dominica (NMC)
158	Dominican Republic (NMC)
159	El Salvador (NMC)
160	U.S. NOAA/NESDIS
161	U.S. NOAA Office of Oceanic and Atmospheric Research
162	Guatemala (NMC)
163	Haiti (NMC)
164	Honduras (NMC)
165	Jamaica (NMC)
166	Mexico
167	Curaçao and Sint Maarten (NMC)
168	Nicaragua (NMC)
169	Panama (NMC)
170	Saint Lucia (NMC)
171	Trinidad and Tobago (NMC)
172	French Departments in RA IV
173	U.S. National Aeronautics and Space Administration (NASA)
174	Integrated System Data Management/Marine Environmental Data Service (ISDM/MEDS - Canada)
175	University Corporation for Atmospheric Research (UCAR) - United States
176	U.S. Cooperative Institute for Meteorological Satellite Studies (CIMSS)
177	U.S. NOAA National Ocean Service
178	Spire Global, Inc.
179	GeoOptics, Inc.
180	PlanetiQ
181	Atmospheric and Environmental Research (AER)
182-189	Reserved
190	Cook Islands (NMC)
191	French Polynesia (NMC)
192	Tonga (NMC)
193	Vanuatu (NMC)
194	Brunei Darussalam (NMC)
195	Indonesia (NMC)
196	Kiribati (NMC)
197	Federated States of Micronesia (NMC)
198	New Caledonia (NMC)
199	Niue
200	Papua New Guinea (NMC)
201	Philippines (NMC)
202	Samoa (NMC)
203	Solomon Islands (NMC)
204	National Institute of Water and Atmospheric Research (NIWA – New Zealand)
205-209	Reserved
210	Frascati (ESA/ESRIN)
211	Lannion
212	Lisboa
213	Reykiavik
214	Madrid
215	Zürich
216	Service ARGOS Toulouse
217	Bratislava
218	Budapest
219	Ljubljana
220	Warsaw
221	Zagreb
222	Albania (NMC)
223	Armenia (NMC)
224	Austria (NMC)
225	Azerbaijan (NMC)
226	Belarus (NMC)
227	Belgium (NMC)
228	Bosnia and Herzegovina (NMC)
229	Bulgaria (NMC)
230	Cyprus (NMC)
231	Estonia (NMC)
232	Georgia (NMC)
233	Dublin
234	Israel (NMC)
235	Jordan (NMC)
236	Latvia (NMC)
237	Lebanon (NMC)
238	Lithuania (NMC)
239	Luxembourg
240	Malta (NMC)
241	Monaco
242	Romania (NMC)
243	Syrian Arab Republic (NMC)
244	The former Yugoslav Republic of Macedonia (NMC)
245	Ukraine (NMC)
246	Republic of Moldova (NMC)
247	Operational Programme for the Exchange of weather RAdar information (OPERA) - EUMETNET
248	Montenegro (NMC)
249	Barcelona Dust Forecast Center
250	COnsortium for Small scale MOdelling (COSMO)
251	Meteorological Cooperation on Operational NWP (MetCoOp)
252	Max Planck Institute for Meteorology (MPI-M)
253	Reserved
254	EUMETSAT Operation Centre
255	Reserved
256	Angola (NMC)
257	Benin (NMC)
258	Botswana (NMC)
259	Burkina Faso (NMC)
260	Burundi (NMC)
261	Cameroon (NMC)
262	Cape Verde (NMC)
263	Central African Republic (NMC)
264	Chad (NMC)
265	Comoros (NMC)
266	Democratic Republic of the Congo (NMC)
267	Djibouti (NMC)
268	Eritrea (NMC)
269	Ethiopia (NMC)
270	Gabon (NMC)
271	Gambia (NMC)
272	Ghana (NMC)
273	Guinea (NMC)
274	Guinea Bissau (NMC)
275	Lesotho (NMC)
276	Liberia (NMC)
277	Malawi (NMC)
278	Mali (NMC)
279	Mauritania (NMC)
280	Namibia (NMC)
281	Nigeria (NMC)
282	Rwanda (NMC)
283	Sao Tome and Principe (NMC)
284	Sierra Leone (NMC)
285	Somalia (NMC)
286	Sudan (NMC)
287	Swaziland (NMC)
288	Togo (NMC)
289	Zambia (NMC)
290	EUMETNET E-Profile
291	The Institute of Atmospheric Physics (IAP) of Chinese Academy of Sciences (CAS)
292	Helmholtz Centre for Environmental Research (UFZ)
293	University of Bremen
294	Netherlands Institute for Space Research (SRON)
295	The Royal Belgian Institute for Space Aeronomy (BIRA-IASB)
296	The French National Centre for Scientific Research (CNRS)
297	The Nanjing Institute of Environmental Sciences (NIES)
298	Dynamic Meteorology Laboratory (LMD)
299	The Rutherford Appleton Laboratory (RAL)
300-65534	Reserved
65535	Missing value

0-01-032 - GNAP

Generating application

When the value of
0-01-031 - GCLONG (Identification of originating/generating centre)
or
0-01-033 - OGCE (Identification of originating/generating centre)
or
0-01-035 - ORIGC (Originating centre)

= 34 (Tokyo (RSMC), Japan Meteorological Agency)

Code figure	Meaning
0-100	Reserved
101	Quality values derived from the EUMETSAT QI (Quality Indicator) method, with the forecast consistency test
102	Quality values derived from the EUMETSAT QI (Quality Indicator) method, excluding the forecast consistency test
103	Quality values derived from the NESDIS RFF (Recursive Filter Function) method
104-254	Reserved
255	Missing value

Code figure	Meaning
0-60	Reserved
61	3DVAR analysis
62-64	Reserved
65	4DVAR analysis
66-254	Reserved
255	Missing value

Code figure	Meaning
0	Reserved
1	Quality values derived from the EUMETSAT QI (Quality Indicator) method, with the forecast consistency test
2	Quality values derived from the EUMETSAT QI (Quality Indicator) method, excluding the forecast consistency test
3	Quality values derived from the NESDIS RFF (Recursive Filter Function) method
4-254	Reserved
255	Missing value

Code figure	Meaning
0	Reserved
1	Quality values derived from the EUMETSAT QI (Quality Indicator) method, excluding the forecast consistency test
2	Quality values derived from the NESDIS RFF (Recursive Filter Function) method
3	Quality values derived from the EUMETSAT QI (Quality Indicator) method, with the forecast consistency test
4-254	Reserved
255	Missing value

Code figure	Meaning
0-1	Reserved
2	Ultra Violet Index Model
3	NCEP/ARL Transport and Dispersion Model
4	NCEP/ARL Smoke Model
5	Satellite-derived precipitation and temperature from IR
6	NCEP/ARL Dust Model
7-9	Reserved
10	Global Wind-Wave Forecast Model
11	Global Multi-Grid Wave Model (Static Grids)
12	Probabilistic Storm Surge
13	Hurricane Multi-Grid Wave Model
14	Extratropical Storm Surge Model
15-18	Reserved
19	Limited-area Fine Mesh (LFM) analysis
20-24	Reserved
25	Snow Cover Analysis
26-29	Reserved
30	Forecaster generated field
31	Value added post processed field
32-38	Reserved
39	Nested Grid Forecast Model (NGM)
40-41	Reserved
42	Global Optimum Interpolation Analysis (GOI) from GFS model
43	Global Optimum Interpolation Analysis (GOI) from "Final" run
44	Sea Surface Temperature Analysis
45	Coastal Ocean Circulation Model
46	HYCOM - Global
47	HYCOM - North Pacific basin
48	HYCOM - North Atlantic basin
49	Ozone Analysis from TIROS Observations
50-51	Reserved
52	Ozone Analysis from Nimbus 7 Observations
53	LFM-Fourth Order Forecast Model
54-63	Reserved
64	Regional Optimum Interpolation Analysis (ROI)
65-67	Reserved
68	80 wave triangular, 18-layer Spectral model from GFS model
69	80 wave triangular, 18 layer Spectral model from "Medium Range Forecast
70	Quasi-Lagrangian Hurricane Model (QLM)
71	Hurricane Weather Research and Forecasting (HWRF) Model
72	Hurricane Non-Hydrostatic Multiscale Model on the B Grid (HNMMB)
73	Fog Forecast model - Ocean Products Center
74	Gulf of Mexico Wind/Wave
75	Gulf of Alaska Wind/Wave
76	Bias-corrected Medium Range Forecast
77	126 wave triangular, 28 layer Spectral model from GFS model
78	126 wave triangular, 28 layer Spectral model from "Medium Range Forecast" run
79	Backup from the previous run
80	62 wave triangular, 28 layer Spectral model from "Medium Range Forecast" run
81	Analysis from GFS (Global Forecast System)
82	Analysis from GDAS (Global Data Assimilation System)
83	Reserved
84	MESO NAM Model (currently 12 km)
85	Real Time Ocean Forecast System (RTOFS)
86	RUC Model, from Forecast Systems Lab (isentropic; scale: 60km at 40N)
87	CAC Ensemble Forecasts from Spectral (ENSMB)
88	NOAA Wave Watch III (NWW3) Ocean Wave Model
89	Non-hydrostatic Meso Model (NMM) (Currently 8 km)
90	62 wave triangular, 28 layer spectral model extension of the "Medium Range Forecast" run
91	62 wave triangular, 28 layer spectral model extension of the GFS model
92	62 wave triangular, 28 layer spectral model run from the "Medium Range Forecast" final analysis
93	62 wave triangular, 28 layer spectral model run from the T62 GDAS analysis of the "Medium Range Forecast" run
94	T170/L42 Global Spectral Model from MRF run
95	T126/L42 Global Spectral Model from MRF run
96	Global Forecast System Model (T574 - forecast hours 000-192, T190 - forecast hours 204-384)
97	Reserved
98	Climate Forecast System Model -- Atmospheric model (GFS) coupled to a multi-level ocean model (currently GFS spectral model at T62, 64 levels coupled to 40 level MOM3 ocean model)
99	Miscellaneous Test ID
100	RUC Surface Analysis (scale: 60km at 40N)
101	RUC Surface Analysis (scale: 40km at 40N)
102-104	Reserved
105	RUC Model from FSL (isentropic; scale: 20km at 40N)
106	Reserved
107	Global Ensemble Forecast System (GEFS)
108	LAMP
109	RTMA (Real Time Mesoscale Analysis)
110	NAM Model - 15km version
111	NAM model, generic resolution (used in SREF processing)
112	WRF-NMM model, generic resolution (used in various runs) NMM=Nondydrostatic Mesoscale Model (NCEP)
113	Products from NCEP SREF processing
114	NAEFS Products from joined NCEP, CMC global ensembles
115	Downscaled GFS from NAM eXtension
116	WRF-EM model, generic resolution (used in various runs) EM - Eulerian Mass-core (NCAR - aka Advanced Research WRF)
117	NEMS GFS Aerosol Component
118	URMA (UnRestricted Mesoscale Analysis)
119	Reserved
120	Ice Concentration Analysis
121	Western North Atlantic Regional Wave Model
122	Alaska Waters Regional Wave Model
123	North Atlantic Hurricane Wave Model
124	Eastern North Pacific Regional Wave Model
125	North Pacific Hurricane Wave Model
126	Sea Ice Forecast Model
127	Lake Ice Forecast Model
128	Global Ocean Forecast Model
129	Global Ocean Data Analysis System (GODAS)
130	Merge of fields from the RUC, NAM, and Spectral Model
131	Great Lakes Wave Model
132-139	Reserved
140	North American Regional Reanalysis (NARR)
141	Land Data Assimilation and Forecast System
142-149	Reserved
150	NWS River Forecast System (NWSRFS)
151	NWS Flash Flood Guidance System (NWSFFGS)
152	WSR-88D Stage II Precipitation Analysis
153	WSR-88D Stage III Precipitation Analysis
154-179	Reserved
180	Quantitative Precipitation Forecast generated by NCEP
181	River Forecast Center Quantitative Precipitation Forecast mosaic generated by NCEP
182	River Forecast Center Quantitative Precipitation Estimate mosaic generated by NCEP
183	NDFD product generated by NCEP/HPC
184	Climatological Calibrated Precipitation Analysis - CCPA
185-189	Reserved
190	National Convective Weather Diagnostic generated by NCEP/AWC
191	Current Icing Potential automated product genterated by NCEP/AWC
192	Analysis product from NCEP/AWC
193	Forecast product from NCEP/AWC
194	Reserved
195	Climate Data Assimilation System 2 (CDAS2)
196	Climate Data Assimilation System 2 (CDAS2) - used for regeneration runs
197	Climate Data Assimilation System (CDAS)
198	Climate Data Assimilation System (CDAS) - used for regeneration runs
199	Climate Forecast System Reanalysis (CFSR) -- Atmospheric model (GFS) coupled to a multi-level ocean, land and seaice model (currently GFS spectral model at T382, 64 levels coupled to 40 level MOM4 ocean model)
200	CPC Manual Forecast Product
201	CPC Automated Product
202-209	Reserved
210	EPA Air Quality Forecast - Currently Northeast U.S. Domain
211	EPA Air Quality Forecast - Currently Eastern U.S. Domain
212-214	Reserved
215	SPC Manual Forecast Product
216-219	Reserved
220	NCEP/OPC automated product
221-254	Reserved
255	Missing value

Code figure	Meaning
0	First guess
1	Quality values derived from the EUMETSAT QI (Quality Indicator) method, excluding the forecast consistency test, but with slight differences between the different satellite operators
2	Quality values derived from the NESDIS RFF (Recursive Filter Function) method
3	Quality values derived from the EUMETSAT QI (Quality Indicator) method, with the forecast consistency test
4	Quality values derived from the NESDIS EE (Expected Error) method
5	Quality values derived from the EUMETSAT QI (Quality Indicator) method, excluding the forecast consistency test, and common to all satellite operators (computed exactly the same way)
6-254	Reserved
255	Missing value

0-01-033 - OGCE

Identification of originating/generating centre

Code figure	Meaning
0	WMO Secretariat
1	Melbourne
2	Melbourne
3	Melbourne
4	Moscow
5	Moscow
6	Moscow
7	U.S. National Weather Service, National Centres for Environmental Prediction (NCEP)
8	U.S. National Weather Service Telecommunications Gateway (NWSTG)
9	U.S. National Weather Service - Other
10	Cairo (RSMC)
11	Cairo (RSMC)
12	Dakar (RSMC)
13	Dakar (RSMC)
14	Nairobi (RSMC)
15	Nairobi (RSMC)
16	Casablanca (RSMC)
17	Tunis (RSMC)
18	Tunis Casablanca (RSMC)
19	Tunis Casablanca (RSMC)
20	Las Palmas
21	Algiers (RSMC)
22	ACMAD
23	Mozambique (NMC)
24	Pretoria (RSMC)
25	La Réunion (RSMC)
26	Khabarovsk (RSMC)
27	Khabarovsk (RSMC)
28	New Delhi (RSMC)
29	New Delhi (RSMC)
30	Novosibirsk (RSMC)
31	Novosibirsk (RSMC)
32	Tashkent (RSMC)
33	Jeddah (RSMC)
34	Tokyo (RSMC), Japan Meteorological Agency
35	Tokyo (RSMC), Japan Meteorological Agency
36	Bangkok
37	Ulaanbaatar
38	Beijing (RSMC)
39	Beijing (RSMC)
40	Seoul
41	Buenos Aires (RSMC)
42	Buenos Aires (RSMC)
43	Brasilia (RSMC)
44	Brasilia (RSMC)
45	Santiago
46	Brazilian Space Agency INPE
47	Colombia (NMC)
48	Ecuador (NMC)
49	Peru (NMC)
50	Venezuela (NMC)
51	Miami (RSMC)
52	Miami (RSMC), National Hurricane Center
53	MSC Monitoring
54	Montreal (RSMC)
55	San Francisco
56	ARINC Centre
57	U.S. Air Force Global Weather Central
58	Fleet Numerical Meteorology and Oceanography Center, Monterey, CA, USA
59	NOAA Forecast Systems Laboratory, Boulder, CO, USA
60	United States National Centre for Atmospheric Research (NCAR)
61	Service ARGOS - Landover
62	U.S. Naval Oceanographic Office
63	International Research Institute for Climate and Society (IRI)
64	Honolulu (RSMC)
65	Darwin (RSMC)
66	Darwin (RSMC)
67	Melbourne (RSMC)
68	Reserved
69	Wellington (RSMC)
70	Wellington (RSMC)
71	Nadi (RSMC)
72	Singapore
73	Malaysia (NMC)
74	UK Meteorological Office, Exeter (RSMC)
75	UK Meteorological Office, Exeter (RSMC)
76	Moscow (RSMC)
77	Reserved
78	Offenbach (RSMC)
79	Offenbach (RSMC)
80	Rome (RSMC)
81	Rome (RSMC)
82	Norrköping
83	Norrköping
84	Toulouse (RSMC)
85	Toulouse (RSMC)
86	Helsinki
87	Belgrade
88	Oslo
89	Prague
90	Episkopi
91	Ankara
92	Frankfurt/Main
93	London (WAFC)
94	Copenhagen
95	Rota
96	Athens
97	European Space Agency (ESA)
98	European Centre for Medium-Range Weather Forecasts (ECMWF)
99	De Bilt
100	Brazzaville
101	Abidjan
102	Libya (NMC)
103	Madagascar (NMC)
104	Mauritius (NMC)
105	Niger (NMC)
106	Seychelles (NMC)
107	Uganda (NMC)
108	Tanzania (NMC)
109	Zimbabwe (NMC)
110	Hong-Kong, China
111	Afghanistan (NMC)
112	Bahrain (NMC)
113	Bangladesh (NMC)
114	Bhutan (NMC)
115	Cambodia (NMC)
116	Democratic People's Republic of Korea (NMC)
117	Islamic Republic of Iran (NMC)
118	Iraq (NMC)
119	Kazakhstan (NMC)
120	Kuwait (NMC)
121	Kyrgyzstan (NMC)
122	Lao People's Democratic Republic (NMC)
123	Macao, China
124	Maldives (NMC)
125	Myanmar (NMC)
126	Nepal (NMC)
127	Oman (NMC)
128	Pakistan (NMC)
129	Qatar (NMC)
130	Republic of Yemen (NMC)
131	Sri Lanka (NMC)
132	Tajikistan (NMC)
133	Turkmenistan (NMC)
134	United Arab Emirates (NMC)
135	Uzbekistan (NMC)
136	Viet Nam (NMC)
137-139	Reserved
140	Bolivia (NMC)
141	Guyana (NMC)
142	Paraguay (NMC)
143	Suriname (NMC)
144	Uruguay (NMC)
145	French Guyana
146	Brazilian Navy Hydrographic Centre
147	COmision Nacional de Actividades Espaciales (CONAE) - Argentina
148	Brazilian Department of Airspace Control - DECEA
149	Reserved
150	Antigua and Barbuda (NMC)
151	Bahamas (NMC)
152	Barbados (NMC)
153	Belize (NMC)
154	British Caribbean Territories Centre
155	San Jose
156	Cuba (NMC)
157	Dominica (NMC)
158	Dominican Republic (NMC)
159	El Salvador (NMC)
160	U.S. NOAA/NESDIS
161	U.S. NOAA Office of Oceanic and Atmospheric Research
162	Guatemala (NMC)
163	Haiti (NMC)
164	Honduras (NMC)
165	Jamaica (NMC)
166	Mexico
167	Curaçao and Sint Maarten (NMC)
168	Nicaragua (NMC)
169	Panama (NMC)
170	Saint Lucia (NMC)
171	Trinidad and Tobago (NMC)
172	French Departments in RA IV
173	U.S. National Aeronautics and Space Administration (NASA)
174	Integrated System Data Management/Marine Environmental Data Service (ISDM/MEDS - Canada)
175	University Corporation for Atmospheric Research (UCAR) - United States
176	U.S. Cooperative Institute for Meteorological Satellite Studies (CIMSS)
177	U.S. NOAA National Ocean Service
178	Spire Global, Inc.
179	GeoOptics, Inc.
180	PlanetiQ
181	Atmospheric and Environmental Research (AER)
182-189	Reserved
190	Cook Islands (NMC)
191	French Polynesia (NMC)
192	Tonga (NMC)
193	Vanuatu (NMC)
194	Brunei Darussalam (NMC)
195	Indonesia (NMC)
196	Kiribati (NMC)
197	Federated States of Micronesia (NMC)
198	New Caledonia (NMC)
199	Niue
200	Papua New Guinea (NMC)
201	Philippines (NMC)
202	Samoa (NMC)
203	Solomon Islands (NMC)
204	National Institute of Water and Atmospheric Research (NIWA – New Zealand)
205-209	Reserved
210	Frascati (ESA/ESRIN)
211	Lannion
212	Lisboa
213	Reykiavik
214	Madrid
215	Zürich
216	Service ARGOS Toulouse
217	Bratislava
218	Budapest
219	Ljubljana
220	Warsaw
221	Zagreb
222	Albania (NMC)
223	Armenia (NMC)
224	Austria (NMC)
225	Azerbaijan (NMC)
226	Belarus (NMC)
227	Belgium (NMC)
228	Bosnia and Herzegovina (NMC)
229	Bulgaria (NMC)
230	Cyprus (NMC)
231	Estonia (NMC)
232	Georgia (NMC)
233	Dublin
234	Israel (NMC)
235	Jordan (NMC)
236	Latvia (NMC)
237	Lebanon (NMC)
238	Lithuania (NMC)
239	Luxembourg
240	Malta (NMC)
241	Monaco
242	Romania (NMC)
243	Syrian Arab Republic (NMC)
244	The former Yugoslav Republic of Macedonia (NMC)
245	Ukraine (NMC)
246	Republic of Moldova (NMC)
247	Operational Programme for the Exchange of weather RAdar information (OPERA) - EUMETNET
248	Montenegro (NMC)
249	Barcelona Dust Forecast Center
250	COnsortium for Small scale MOdelling (COSMO)
251	Meteorological Cooperation on Operational NWP (MetCoOp)
252	Max Planck Institute for Meteorology (MPI-M)
253	Reserved
254	EUMETSAT Operation Centre
255	Missing value

0-01-034 - GSES

Identification of originating/generating sub-centre

Code figure	Meaning
0	No sub-centre
1-206	Reserved
207	Syowa
208-239	Reserved
240	Kiyose
241	Reanalysis project
242-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-9	Reserved
10	Cachoeira Paulista (INPE)
11	Cuiaba (INPE)
12	Brasilia (SEPIS-INMET)
13	Fortaleza (FUNCEME)
14	Natal (Navy Hygrog. Centre)
15	Manaus (SIVAM)
16	Natal (INPE)
17	Boa Vista
18	SIPAM-Porto Velho-RO
19	SIPAM-Belém-PA
20-24	Reserved
25	São Paulo University - USP
26-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-9	Reserved
10	Córdoba
11-14	Reserved
15	Ushuaia
16-19	Reserved
20	Marambio
21-29	Reserved
30	Santiago de Chile
31-39	Reserved
40	Punta Arenas
41-49	Reserved
50	Base Presidente Frei
51-59	Reserved
60	Cotopaxi
61-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-248	Reserved
249	Singapore
250-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1	Luxembourg (NMC)
2-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-9	Reserved
10	Tromso (Norway)
11-19	Reserved
20	Maspalomas (Spain)
21-29	Reserved
30	Kangerlussuaq (Greenland)
31-39	Reserved
40	Edmonton (Canada)
41-49	Reserved
50	Bedford (Canada)
51-59	Reserved
60	Gander (Canada)
61-69	Reserved
70	Monterey (USA)
71-79	Reserved
80	Wallops Island (USA)
81-89	Reserved
90	Gilmor Creek (USA)
91-99	Reserved
100	Athens (Greece)
101-119	Reserved
120	Ewa Beach, Hawaii
121-124	Reserved
125	Ford Island, Hawaii
126-129	Reserved
130	Miami, Florida
131-139	Reserved
140	Lannion (France)
141-149	Reserved
150	Svalbard (Norway)
151-169	Reserved
170	St Denis (La Réunion)
171-179	Reserved
180	Moscow
181-189	Reserved
190	Muscat
191-199	Reserved
200	Khabarovsk
201-209	Reserved
210	Novosibirsk
211-219	Reserved
220	NOAA Satellite Operations Facility (NSOF)
221-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-100	Reserved
101	Albania (NMC)
102	National Research Council/Institute of Atmospheric Sciences and Climate (CNR-ISAC)
103-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-242	Reserved
243	Seoul
244	Reserved
245	Jincheon
246-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1	Cyprus (NMC)
2-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-200	Reserved
201	Casey
202	Reserved
203	Davis
204-209	Reserved
210	Alice Springs
211	Melbourne Crib Point 1
212-213	Reserved
214	Darwin
215-216	Reserved
217	Perth
218	Reserved
219	Townsville
220-231	Reserved
232	Fiji
233-234	Reserved
235	Noumea
236	Reserved
237	Papeete
238-249	Reserved
250	Vladivostock
251	Guam
252	Honolulu
253-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-9	Reserved
10	Tromso (Norway)
11	McMurdo (Antarctica)
12	Sodankyla (Finland)
13	Fairbanks (USA)
14	Barrow (USA)
15	Rothera (Antarctica)
16-19	Reserved
20	Honolulu (United States)
21	Gilmore Creek (United States)
22	Madison (United States)
23	Miami (United States)
24	Mayaguez (Puerto Rico)
25	Monterey (United States)
26	Guam
27	Corvallis (United States)
28	Hampton (United States)
29	New York City (United States)
30-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1	Great Lakes Environmental Research Laboratory
2	Earth System Research Laboratory
3	Atlantic Oceanographic and Meteorological Laboratory
4	Pacific Marine Environmental Laboratory
5	Air Resources Laboratory
6	Geophysical Fluid Dynamics Laboratory
7	National Severe Storms Laboratory
8-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1	Shanwick Oceanic Area Control Centre
2	Fucino
3	Gatineau
4	Maspalomas
5	ESA ERS Central Facility
6	Prince Albert
7	West Freugh
8-12	Reserved
13	Tromso
14-20	Reserved
21	Agenzia Spaziale Italiana (Italy)
22	Centre National de la Recherche Scientifique (France)
23	GeoForschungs Zentrum (Germany)
24	Geodetic Observatory Pecny (Czech Republic)
25	Institut d'Estudis Espacials de Catalunya (Spain)
26	Federal Office of Topography (Switzerland)
27	Nordic Commission of Geodesy (Norway)
28	Nordic Commission of Geodesy (Sweden)
29	Institute Géographique National (France) - Service de géodésie
30	Bundesamt für Kartographie und Geodäsie (Germany)
31	Institute of Engineering Satellite Surveying and Geodesy (U.K.)
32	Joint Operational Meteorology and Oceanography Centre (JOMOC)
33	Koninklijk Nederlands Meteorologisch Institut (Netherlands)
34	Nordic GPS Atmospheric Analysis centre (Sweden)
35	Instituto Geografico Nacional de Espana (Spain)
36	Met Eireann (Ireland)
37	Royal Observatory of Belgium (Belgium)
38-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-75	Reserved
76	RHM (Russia)
77	Reserved
78	DWD (Germany)
79	Reserved
80	USAM (Italy)
81-95	Reserved
96	HNMS (Greece)
97-214	Reserved
215	MCH (Switzerland)
216-219	Reserved
220	IMGW (Poland)
221-241	Reserved
242	NMA (Romania)
243-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-224	Reserved
225	Beijing
226	Guangzhou
227	Reserved
228	Urumuqi
229-254	Reserved
255	Missing value

Code figure	Meaning
0	Reserved
1	DBNet station of Cayenne (French Guyana)
2-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1	Solar and Ozone Observatory Hradec Kralove
2-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-9	Reserved
10	POLARA (Polarimetric Radar Algorithms instance)
11-63	Reserved
64	Bundeswehr Geoinformation Office (BGIO)
65-109	Reserved
110	NowCast mobile (Lightning data)
111-220	Reserved
221	Schleswig-Holstein, Traffic Operations Computing Center (TOCC) Kiel/Neumünster
222	Hamburg, TOCC Hamburg
223	Niedersachsen, TOCC Hannover
224	Austria (NMC)
225	Nordrhein-Westfalen, TOCC Kamen
226	Hessen, TOCC Rüsselsheim
227	Rheinland-Pfalz, TOCC Koblenz
228	Baden-Württemberg, TOCC Ludwigsburg
229	Bayern, TOCC Freimann
230	Saarland, TOCC Rohrbach
231	Bayern, Autobahn directorate Nordbayern
232	Brandenburg, TOCC Stolpe
233	Mecklenburg-Vorpommern, TOCC Malchow
234	Sachsen, TOCC Dresden
235	Sachsen-Anhalt, TOCC Halle
236	Thüringen, TOCC Erfurt
237	EasyWay – Meteotrans
238-253	Reserved
254	EUMETSAT
255	Missing value

Code figure	Meaning
0	No sub-centre
1-199	Reserved
200	Institut National de l'Environnement Industriel et des Risques (France)
201	Rheinisches Institut für Umweltforschung an der Universität zu Köln E.V. (Germany)
202	Institut Français de Recherche pour l'Exploitation de la Mer
203	Aarhus University (Denmark)
204	Institute of Environmental Protection – National Research Institute (Poland)
205-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1	Center for Operational Oceanographic Products and Services
2	Coastal Survey Development Laboratory
3-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1	Ames Research Center
2	Dryden Flight Research Center
3	Glenn Research Center
4	Goddard Space Flight Center
5	Jet Propulsion Laboratory
6	Johnson Space Center
7	Kennedy Space Center
8	Langley Research Center
9	Marshall Space Flight Center
10	Stennis Space Center
11	Goddard Institute for Space Studies
12	Independent Verification and Validation Facility
13	NASA Shared Service Center
14	Wallops Flight Facility
15-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-228	Reserved
229	Hong-Kong
230-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1	NCEP Reanalysis Project
2	NCEP Ensemble Products
3	NCEP Central Operations
4	Environmental Modeling Center
5	Weather Prediction Center
6	Ocean Prediction Center
7	Climate Prediction Center
8	Aviation Weather Center
9	Storm Prediction Center
10	National Hurricane Center
11	NWS Techniques Development Laboratory
12	NESDIS Office of Research and Applications
13	Federal Aviation Administration
14	NWS Meteorological Development Laboratory
15	North American Regional Reanalysis Project
16	Space Weather Prediction Center
17	ESRL Global Systems Division
18-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-100	Reserved
101	Maupuia
102	Lauder
103-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1	RARS station of Tahiti (French Polynesia)
2-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1-203	Reserved
204	National Institute of Water and Atmospheric Research (NIWA - New Zealand)
205	Niue
206	Raotonga (Cook Islands)
207	Apia (Samoa)
208	Tonga
209	Tuvalu
210	Kiribati
211	Tokelau
212-242	Reserved
243	Kelburn
244-254	Reserved
255	Missing value

Code figure	Meaning
0	No sub-centre
1	National Climatic Data Center
2	National Geophysical Data Center
3	National Oceanographic Data Center
4	Center for Satellite Applications and Research (STAR)
5	Joint Polar Satellite System
6-9	Reserved
10	Tromso (Norway)
11	McMurdo (Antarctica)
12-254	Reserved
255	Missing value

Code figure	Meaning
0	Reserved
1	Integrated Centre of Aeronautical Meteorology - CIMAER
2-254	Reserved
255	Missing value

0-01-035 - ORIGC

Originating centre

Code figure	Meaning
0	WMO Secretariat
1	Melbourne
2	Melbourne
3	Melbourne
4	Moscow
5	Moscow
6	Moscow
7	U.S. National Weather Service, National Centres for Environmental Prediction (NCEP)
8	U.S. National Weather Service Telecommunications Gateway (NWSTG)
9	U.S. National Weather Service - Other
10	Cairo (RSMC)
11	Cairo (RSMC)
12	Dakar (RSMC)
13	Dakar (RSMC)
14	Nairobi (RSMC)
15	Nairobi (RSMC)
16	Casablanca (RSMC)
17	Tunis (RSMC)
18	Tunis Casablanca (RSMC)
19	Tunis Casablanca (RSMC)
20	Las Palmas
21	Algiers (RSMC)
22	ACMAD
23	Mozambique (NMC)
24	Pretoria (RSMC)
25	La Réunion (RSMC)
26	Khabarovsk (RSMC)
27	Khabarovsk (RSMC)
28	New Delhi (RSMC)
29	New Delhi (RSMC)
30	Novosibirsk (RSMC)
31	Novosibirsk (RSMC)
32	Tashkent (RSMC)
33	Jeddah (RSMC)
34	Tokyo (RSMC), Japan Meteorological Agency
35	Tokyo (RSMC), Japan Meteorological Agency
36	Bangkok
37	Ulaanbaatar
38	Beijing (RSMC)
39	Beijing (RSMC)
40	Seoul
41	Buenos Aires (RSMC)
42	Buenos Aires (RSMC)
43	Brasilia (RSMC)
44	Brasilia (RSMC)
45	Santiago
46	Brazilian Space Agency INPE
47	Colombia (NMC)
48	Ecuador (NMC)
49	Peru (NMC)
50	Venezuela (NMC)
51	Miami (RSMC)
52	Miami (RSMC), National Hurricane Center
53	MSC Monitoring
54	Montreal (RSMC)
55	San Francisco
56	ARINC Centre
57	U.S. Air Force Global Weather Central
58	Fleet Numerical Meteorology and Oceanography Center, Monterey, CA, USA
59	NOAA Forecast Systems Laboratory, Boulder, CO, USA
60	United States National Centre for Atmospheric Research (NCAR)
61	Service ARGOS - Landover
62	U.S. Naval Oceanographic Office
63	International Research Institute for Climate and Society (IRI)
64	Honolulu (RSMC)
65	Darwin (RSMC)
66	Darwin (RSMC)
67	Melbourne (RSMC)
68	Reserved
69	Wellington (RSMC)
70	Wellington (RSMC)
71	Nadi (RSMC)
72	Singapore
73	Malaysia (NMC)
74	UK Meteorological Office, Exeter (RSMC)
75	UK Meteorological Office, Exeter (RSMC)
76	Moscow (RSMC)
77	Reserved
78	Offenbach (RSMC)
79	Offenbach (RSMC)
80	Rome (RSMC)
81	Rome (RSMC)
82	Norrköping
83	Norrköping
84	Toulouse (RSMC)
85	Toulouse (RSMC)
86	Helsinki
87	Belgrade
88	Oslo
89	Prague
90	Episkopi
91	Ankara
92	Frankfurt/Main
93	London (WAFC)
94	Copenhagen
95	Rota
96	Athens
97	European Space Agency (ESA)
98	European Centre for Medium-Range Weather Forecasts (ECMWF)
99	De Bilt
100	Brazzaville
101	Abidjan
102	Libya (NMC)
103	Madagascar (NMC)
104	Mauritius (NMC)
105	Niger (NMC)
106	Seychelles (NMC)
107	Uganda (NMC)
108	Tanzania (NMC)
109	Zimbabwe (NMC)
110	Hong-Kong, China
111	Afghanistan (NMC)
112	Bahrain (NMC)
113	Bangladesh (NMC)
114	Bhutan (NMC)
115	Cambodia (NMC)
116	Democratic People's Republic of Korea (NMC)
117	Islamic Republic of Iran (NMC)
118	Iraq (NMC)
119	Kazakhstan (NMC)
120	Kuwait (NMC)
121	Kyrgyzstan (NMC)
122	Lao People's Democratic Republic (NMC)
123	Macao, China
124	Maldives (NMC)
125	Myanmar (NMC)
126	Nepal (NMC)
127	Oman (NMC)
128	Pakistan (NMC)
129	Qatar (NMC)
130	Republic of Yemen (NMC)
131	Sri Lanka (NMC)
132	Tajikistan (NMC)
133	Turkmenistan (NMC)
134	United Arab Emirates (NMC)
135	Uzbekistan (NMC)
136	Viet Nam (NMC)
137-139	Reserved
140	Bolivia (NMC)
141	Guyana (NMC)
142	Paraguay (NMC)
143	Suriname (NMC)
144	Uruguay (NMC)
145	French Guyana
146	Brazilian Navy Hydrographic Centre
147	COmision Nacional de Actividades Espaciales (CONAE) - Argentina
148	Brazilian Department of Airspace Control - DECEA
149	Reserved
150	Antigua and Barbuda (NMC)
151	Bahamas (NMC)
152	Barbados (NMC)
153	Belize (NMC)
154	British Caribbean Territories Centre
155	San Jose
156	Cuba (NMC)
157	Dominica (NMC)
158	Dominican Republic (NMC)
159	El Salvador (NMC)
160	U.S. NOAA/NESDIS
161	U.S. NOAA Office of Oceanic and Atmospheric Research
162	Guatemala (NMC)
163	Haiti (NMC)
164	Honduras (NMC)
165	Jamaica (NMC)
166	Mexico
167	Curaçao and Sint Maarten (NMC)
168	Nicaragua (NMC)
169	Panama (NMC)
170	Saint Lucia (NMC)
171	Trinidad and Tobago (NMC)
172	French Departments in RA IV
173	U.S. National Aeronautics and Space Administration (NASA)
174	Integrated System Data Management/Marine Environmental Data Service (ISDM/MEDS - Canada)
175	University Corporation for Atmospheric Research (UCAR) - United States
176	U.S. Cooperative Institute for Meteorological Satellite Studies (CIMSS)
177	U.S. NOAA National Ocean Service
178	Spire Global, Inc.
179	GeoOptics, Inc.
180	PlanetiQ
181	Atmospheric and Environmental Research (AER)
182-189	Reserved
190	Cook Islands (NMC)
191	French Polynesia (NMC)
192	Tonga (NMC)
193	Vanuatu (NMC)
194	Brunei Darussalam (NMC)
195	Indonesia (NMC)
196	Kiribati (NMC)
197	Federated States of Micronesia (NMC)
198	New Caledonia (NMC)
199	Niue
200	Papua New Guinea (NMC)
201	Philippines (NMC)
202	Samoa (NMC)
203	Solomon Islands (NMC)
204	National Institute of Water and Atmospheric Research (NIWA – New Zealand)
205-209	Reserved
210	Frascati (ESA/ESRIN)
211	Lannion
212	Lisboa
213	Reykiavik
214	Madrid
215	Zürich
216	Service ARGOS Toulouse
217	Bratislava
218	Budapest
219	Ljubljana
220	Warsaw
221	Zagreb
222	Albania (NMC)
223	Armenia (NMC)
224	Austria (NMC)
225	Azerbaijan (NMC)
226	Belarus (NMC)
227	Belgium (NMC)
228	Bosnia and Herzegovina (NMC)
229	Bulgaria (NMC)
230	Cyprus (NMC)
231	Estonia (NMC)
232	Georgia (NMC)
233	Dublin
234	Israel (NMC)
235	Jordan (NMC)
236	Latvia (NMC)
237	Lebanon (NMC)
238	Lithuania (NMC)
239	Luxembourg
240	Malta (NMC)
241	Monaco
242	Romania (NMC)
243	Syrian Arab Republic (NMC)
244	The former Yugoslav Republic of Macedonia (NMC)
245	Ukraine (NMC)
246	Republic of Moldova (NMC)
247	Operational Programme for the Exchange of weather RAdar information (OPERA) - EUMETNET
248	Montenegro (NMC)
249	Barcelona Dust Forecast Center
250	COnsortium for Small scale MOdelling (COSMO)
251	Meteorological Cooperation on Operational NWP (MetCoOp)
252	Max Planck Institute for Meteorology (MPI-M)
253	Reserved
254	EUMETSAT Operation Centre
255	Reserved
256	Angola (NMC)
257	Benin (NMC)
258	Botswana (NMC)
259	Burkina Faso (NMC)
260	Burundi (NMC)
261	Cameroon (NMC)
262	Cape Verde (NMC)
263	Central African Republic (NMC)
264	Chad (NMC)
265	Comoros (NMC)
266	Democratic Republic of the Congo (NMC)
267	Djibouti (NMC)
268	Eritrea (NMC)
269	Ethiopia (NMC)
270	Gabon (NMC)
271	Gambia (NMC)
272	Ghana (NMC)
273	Guinea (NMC)
274	Guinea Bissau (NMC)
275	Lesotho (NMC)
276	Liberia (NMC)
277	Malawi (NMC)
278	Mali (NMC)
279	Mauritania (NMC)
280	Namibia (NMC)
281	Nigeria (NMC)
282	Rwanda (NMC)
283	Sao Tome and Principe (NMC)
284	Sierra Leone (NMC)
285	Somalia (NMC)
286	Sudan (NMC)
287	Swaziland (NMC)
288	Togo (NMC)
289	Zambia (NMC)
290	EUMETNET E-Profile
291	The Institute of Atmospheric Physics (IAP) of Chinese Academy of Sciences (CAS)
292	Helmholtz Centre for Environmental Research (UFZ)
293	University of Bremen
294	Netherlands Institute for Space Research (SRON)
295	The Royal Belgian Institute for Space Aeronomy (BIRA-IASB)
296	The French National Centre for Scientific Research (CNRS)
297	The Nanjing Institute of Environmental Sciences (NIES)
298	Dynamic Meteorology Laboratory (LMD)
299	The Rutherford Appleton Laboratory (RAL)
300-65534	Reserved
65535	Missing value

0-01-036 - AOOP

Agency in charge of operating the observing platform

Code figure	Meaning
0-36000	Reserved
36001	Australia, Bureau of Meteorology (BOM)
36002	Australia, Joint Australian Facility for Ocean Observing Systems (JAFOOS)
36003	Australia, the Commonwealth Scientific and Industrial Research Organisation (CSIRO)
36004-124000	Reserved
124001	Canada, Marine Environmental Data Service (MEDS)
124002	Canada, Institute of Ocean Sciences (IOS)
124003-124172	Reserved
124173	Canada, Environment Canada
124174	Canada, Department of National Defense
124175	Canada, Nav Canada
124176-156000	Reserved
156001	China, The State Oceanic Administration
156002	China, Second Institute of Oceanography State Oceanic Administration
156003	China, Institute of Ocean Technology
156004-250000	Reserved
250001	France, Institut de Recherche pour le Développement (IRD)
250002	France, Institut Français de Recherche pour l'Exploitation de la mer (IFREMER)
250003-276000	Reserved
276001	Germany, Bundesamt fuer Seeschiffahrt und Hydrographie (BSH)
276002	Germany, Institut fuer Meereskunde, Kiel
276003-356000	Reserved
356001	India, National Institute of Oceanography (NIO)
356002	India, National Institute for Ocean Technology (NIOT)
356003	India, National Centre for Ocean Information Service
356004-392000	Reserved
392001	Japan, Japan Meteorological Agency (JMA)
392002	Japan, Frontier Observational Research System for Global Change
392003	Japan, Japan Marine Science and Technology Centre (JAMSTEC)
392004-410000	Reserved
410001	Republic of Korea, Seoul National University
410002	Republic of Korea, Korea Ocean Research and Development Institute (KORDI)
410003	Republic of Korea, Meteorological Research Institute
410004-540000	Reserved
540001	New Caledonia, Institut de Recherche pour le Développement (IRD)
540002-554000	Reserved
554001	New Zealand, National Institute of Water and Atmospheric Research (NIWA)
554002-643000	Reserved
643001	Russia, State Oceanographic Institute of Roshydromet
643002	Russia, Federal Service for Hydrometeorology and Environmental Monitoring
643003-724000	Reserved
724001	Spain, Instituto Español de Oceanografia
724002-826000	Reserved
826001	United Kingdom, Hydrographic Office
826002	United Kingdom, Southampton Oceanography Centre (SOC)
826003	United Kingdom, Centre for Environment, Fisheries and Aquaculture (Cefas)
826004	United Kingdom, Marine Scotland (MS)
826005	United Kingdom, Plymouth Marine Laboratory (PML)
826006	United Kingdom, British Antarctic Survey (BAS)
826007-840000	Reserved
840001	USA, NOAA Atlantic Oceanographic and Meteorological Laboratories (AOML)
840002	USA, NOAA Pacific Marine Environmental Laboratories (PMEL)
840003	USA, Scripps Institution of Oceanography (SIO)
840004	USA, Woods Hole Oceanographic Institution (WHOI)
840005	USA, University of Washington
840006	USA, Naval Oceanographic Office
840007-1048574	Reserved
1048575	Missing value

0-01-038 - SSIF

Source of sea ice fraction

Code figure	Meaning
0	No sea ice set
1	NSIDC SSM/I Cavalieri et al (1992)
2	AMSR-E
3	ECMWF
4	CMS (France) cloud mask used by Medspiration
5	EUMETSAT OSI-SAF
6-30	Reserved
31	Missing value

0-01-044 - GNAPS

Standard generating application

Code figure	Meaning
0	Reserved
1	Full weighted mixture of individual quality tests
2	Weighted mixture of individual tests, but excluding forecast comparison
3	Recursive filter function
4	Common quality index (QI) without forecast
5	QI without forecast
6	QI with forecast
7	Estimated Error (EE) in m/s converted to a percent confidence
8-254	Reserved
255	Missing value

0-01-052 - PTIDT

Platform transmitter ID

Code figure	Meaning
0	Primary
1	Secondary
2-6	Reserved
7	Missing value

0-01-090 - TMIP

Technique for making up initial perturbations

Code figure	Meaning
0	Lagged-Average Forecasting (LAF)
1	Breeding
2	Singular vectors
3	Multiple analysis cycles
4-254	Reserved
255	Missing value

0-01-092 - TOEF

Type of ensemble forecast

Code figure	Meaning
0	Unperturbed high-resolution control forecast
1	Unperturbed low-resolution control forecast
2	Negatively perturbed forecast
3	Positively perturbed forecast
4	Perturbed forecast
5-254	Reserved
255	Missing value

0-01-101 - STID

State identifier

Code figure	Meaning
0-99	Reserved
100	Algeria
101	Angola
102	Benin
103	Botswana
104	Burkina Faso
105	Burundi
106	Cameroon
107	Cape Verde
108	Central African Republic
109	Chad
110	Comoros
111	Congo
112	Cote d'Ivoire
113	Democratic Republic of the Congo
114	Djibouti
115	Egypt
116	Eritrea
117	Ethiopia
118	France (RA I)
119	Gabon
120	Gambia
121	Ghana
122	Guinea
123	Guinea-Bissau
124	Kenya
125	Lesotho
126	Liberia
127	Libya
128	Madagascar
129	Malawi
130	Mali
131	Mauritania
132	Mauritius
133	Morocco
134	Mozambique
135	Namibia
136	Niger
137	Nigeria
138	Portugal (RA I)
139	Rwanda
140	Sao Tom and Prince
141	Senegal
142	Seychelles
143	Sierra Leone
144	Somalia
145	South Africa
146	Spain
147	Sudan
148	Swaziland
149	Togo
150	Tunisia
151	Uganda
152	United Kingdom of Great Britain and Northern Ireland (RA I)
153	United Republic of Tanzania
154	Zambia
155	Zimbabwe
156-199	Reserved
200	Afghanistan
201	Bahrain
202	Bangladesh
203	Bhutan
204	Cambodia
205	China
206	Democratic People's Republic of Korea
207	Hong Kong, China
208	India
209	Iran, Islamic Republic of
210	Iraq
211	Japan
212	Kazakhstan
213	Kuwait
214	Kyrgyzstan
215	Lao People's Democratic Republic
216	Macao, China
217	Maldives
218	Mongolia
219	Myanmar
220	Nepal
221	Oman
222	Pakistan
223	Qatar
224	Republic of Korea
225	Republic of Yemen
226	Russian Federation (RA II)
227	Saudi Arabia
228	Sri Lanka
229	Tajikistan
230	Thailand
231	Turkmenistan
232	United Arab Emirates
233	Uzbekistan
234	Viet Nam
235-299	Reserved
300	Argentina
301	Bolivia
302	Brazil
303	Chile
304	Colombia
305	Ecuador
306	France
307	Guyana
308	Paraguay
309	Peru
310	Suriname
311	Uruguay
312	Venezuela
313-399	Reserved
400	Antigua and Barbuda
401	Bahamas
402	Barbados
403	Belize
404	British Caribbean Territories
405	Canada
406	Colombia
407	Costa Rica
408	Cuba
409	Dominica
410	Dominican Republic
411	El Salvador
412	France (RA IV)
413	Guatemala
414	Haiti
415	Honduras
416	Jamaica
417	Mexico
418	Curaçao and Sint Maarten
419	Nicaragua
420	Panama
421	Saint Lucia
422	Trinidad and Tobago
423	United Kingdom of Great Britain and Northern Ireland (RA IV)
424	United States of America (RA IV)
425	Venezuela
426-499	Reserved
500	Australia
501	Brunei Darussalam
502	Cook Islands
503	Fiji
504	French Polynesia
505	Indonesia
506	Kiribati
507	Malaysia
508	Micronesia, Federated States of
509	New Caledonia
510	New Zealand
511	Niue
512	Papua New Guinea
513	Philippines
514	Samoa
515	Singapore
516	Solomon Islands
517	Tonga
518	United Kingdom of Great Britain and Northern Ireland (RA V)
519	United States of America (RA V)
520	Vanuatu
521-599	Reserved
600	Albania
601	Armenia
602	Austria
603	Azerbaijan
604	Belarus
605	Belgium
606	Bosnia and Herzegovina
607	Bulgaria
608	Croatia
609	Cyprus
610	Czech Republic
611	Denmark
612	Estonia
613	Finland
614	France (RA VI)
615	Georgia
616	Germany
617	Greece
618	Hungary
619	Iceland
620	Ireland
621	Israel
622	Italy
623	Jordan
624	Kazakhstan
625	Latvia
626	Lebanon
627	Lithuania
628	Luxembourg
629	Malta
630	Monaco
631	Montenegro
632	Netherlands
633	Norway
634	Poland
635	Portugal (RA VI)
636	Republic of Moldova
637	Romania
638	Russian Federation (RA VI)
639	Serbia
640	Slovakia
641	Slovenia
642	Spain
643	Sweden
644	Switzerland
645	Syrian Arab Republic
646	The Former Yugoslav Republic of Macedonia
647	Republic of Turkiye
648	Ukraine
649	United Kingdom of Great Britain and Northern Ireland (RA VI)
650-1022	Reserved
1023	Missing value

0-01-150 - CRFS

Coordinate reference system

Code figure	Meaning
0	WGS84, as used by ICAO since 1998
1	ETRS89, as defined by EPSG::4258
2	NAD83, as defined by EPSG::4269
3	DHDN, as defined by EPSG::4314
4	Ellipsoidal datum using the International Reference Meridian and the International Reference Pole as the prime meridian and prime pole, respectively, and the origin of the International Terrestrial Reference System (ITRS). International Reference Meridian, International Reference Pole and ITRS are maintained by the International Earth Rotation and Reference Systems Service (IERS).
5	Earth-centered, earth-fixed (ECEF) coordinate system or Earth-centred rotational (ECR) system. This is a right-handed Cartesian coordinate system (X, Y, Z) rotating with the Earth. The origin is defined by the centre of mass of the Earth.
6-65534	Reserved
65535	Missing value

0-01-151 - FMSLRD

Fixed mean sea-level reference datum

Code figure	Meaning
0	Earth Gravitational Model 1996
1	Baltic height system 1977
2-4094	Reserved
4095	Missing value

0-01-155 - RTRID

Retrieval identifier

Code figure	Meaning
0	Standard Correct Algorithm (SCA)
1	Standard Correct Algorithm mid-bin (SCA mid-bin)
2	Maximum Likelihood Estimation (MLE)
3	Optimal Estimation Profile (OE-PRO)
4	Group
5	Group mid-bin
6-254	Reserved
255	Missing value

0-01-193 - TDMP

Direction of motion of ship during last 3 hours

Code figure	Meaning
0	Stationary
1	NE
2	E
3	SE
4	S
5	SW
6	W
7	NW
8	N
9	Unknown
10-14	Reserved
15	Missing value

0-01-195 - SACO

Country/agency operating satellite

Code figure	Meaning
0	European Union
1	Japan
2-3	Reserved
4	India
5-254	Reserved
255	Missing value

0-01-199 - THRPT

Type of hourly report

Code figure	Meaning
0	METAR report
1	SPECI report
2	LWIS report
3	Missing value

0-01-200 - ASMP

Average speed of motion of ship during last 3 hours

Code figure	Meaning
0	0 knots
1	1 to 5 knots
2	6 to 10 knots
3	11 to 15 knots
4	16 to 20 knots
5	21 to 25 knots
6	26 to 30 knots
7	31 to 35 knots
8	36 to 40 knots
9	Over 40 knots
10-14	Reserved
15	Missing value

0-01-204 - SWPR

Satellite wind producer

Code figure	Meaning
0	Reserved
1	USA/NOAA/NESDIS
2-3	Reserved
4	USA/NOAA/NWS
5	USA/university
6	USA/commercial
7	USA/DOD/NAVY
8	USA/DOD/USAF
9	USA/NASA
10-11	Reserved
12	EUMETSAT/METEOSAT
13	GMS/MSC
14	India/INSAT
15-254	Reserved
255	Missing value

0-01-225 - NCNW

NCEP network

Code figure	Meaning
0-1	Reserved
2	GFS/GDAS
3	CDAS
4	NAM
5	RAP
6-18	Reserved
19	RTMA/URMA
20-62	Reserved
63	Missing value

0-02-001 - TOST

Type of station

Code figure	Meaning
0	Automatic
1	Manned
2	Hybrid: both manned and automatic
3	Missing value

0-02-002 - TIWM

Type of instrumentation for wind measurement

Bit number	Meaning
1	Certified Instruments
2	Originally measured in knots
3	Originally measured in km h⁻¹
All 4	Missing value

0-02-003 - A4ME

Type of measuring equipment used

Code figure	Meaning
0	Pressure Instrument associated with wind measuring equipment
1	Optical theodolite
2	Radio theodolite
3	Radar
4	VLF-Omega
5	Loran C
6	Wind profiler
7	Satellite navigation
8	Radio-acoustic Sounding System (RASS)
9	Sodar
10	LIDAR
11-13	Reserved
14	Pressure instrument associated with wind measuring equipment but pressure element failed during ascent
15	Missing value

0-02-004 - TIEM

Type of instrumentation for evaporation measurement or type of crop for which evapotranspiration is reported

Code figure	Meaning
0	USA open pan evaporimeter (without cover)
1	USA open pan evaporimeter (mesh covered)
2	GGI 3000 evaporimeter (sunken)
3	20 m² tank
4	Others
5	Rice
6	Wheat
7	Maize
8	Sorghum
9	Other crops
10-14	Reserved
15	Missing value

0-02-006 - UARSI

Upper air remote sensing instrument type

Code figure	Meaning
0	Reserved
1	Elastic backscatter lidar
2	Raman backscatter lidar
3	Radar wind profiler
4	Lidar wind profiler
5	Sodar wind profiler
6	Wind profiler
7	Lidar
8	Ground-based microwave radiometer
9	Differential absorption lidar
10-62	Reserved
63	Missing value

0-02-007 - TGIT

Type of sensor for water level measuring instrument

Code figure	Meaning
0	Reserved
1	Shaft encoder float system
2	Ultrasonic
3	Radar
4	Pressure (single transducer)
5	Pressure (multiple transducer)
6	Pressure (in stilling well)
7	Bubbler pressure
8	Acoustic (with sounding tube)
9	Acoustic (in open air)
10-62	Reserved
63	Missing value

0-02-008 - TOFSP

Type of offshore platform

Code figure	Meaning
0	Fixed platform
1	Mobile offshore drill ship
2	Jack-up rig
3	Semi-submersible platform
4	FPSO (floating production storage and offloading unit)
5	Light vessel
6-14	Reserved
15	Missing value

0-02-009 - MAALG

MODIS aerosol algorithm

Code figure	Meaning
0	Land corrected reflectances
1	Ocean best solution
2	Ocean average solution
3-14	Reserved
15	Missing value

0-02-011 - RATP

Radiosonde type

Code figure	Meaning
0	Reserved
1	iMet-1-BB (USA)
2	No radiosonde - passive target (e.g. reflector)
3	No radiosonde - active target (e.g. transponder)
4	No radiosonde - passive temperature-humidity profiler
5	No radiosonde - active temperature-humidity profiler
6	No radiosonde - radio acoustic sounder
7	iMet-1-AB (USA)
8	No radiosonde - reserved
9	No radiosonde - system unknown or not specified
10	VIZ type A pressure-commutated (USA)
11	VIZ type B time-commutated (USA)
12	RS SDC (Space Data Corporation - USA)
13	Astor (no longer made - Australia)
14	VIZ MARK I MICROSONDE (USA)
15	EEC Company type 23 (USA)
16	Elin (Austria)
17	Graw G. (Germany)
18	Graw DFM-06 (Germany)
19	Graw M60 (Germany)
20	Indian Meteorological Service MK3 (India)
21	VIZ/Jin Yang MARK I MICROSONDE (Republic of Korea)
22	Meisei RS2-80 (Japan)
23	Mesural FMO 1950A (France)
24	Mesural FMO 1945A (France)
25	Mesural MH73A (France)
26	Meteolabor Basora (Switzerland)
27	AVK MRZ (Russian Federation)
28	Meteorit MARZ2-1 (Russian Federation)
29	Meteorit MARZ2-2 (Russian Federation)
30	Oki RS2-80 (Japan)
31	VIZ/Valcom type A pressure-commutated (Canada)
32	Shanghai Radio (China)
33	UK Met Office MK3 (UK)
34	Vinohrady (Czech Republic)
35	Vaisala RS18 (Finland)
36	Vaisala RS21 (Finland)
37	Vaisala RS80 (Finland)
38	VIZ LOCATE Loran-C (USA)
39	Sprenger E076 (Germany)
40	Sprenger E084 (Germany)
41	Sprenger E085 (Germany
42	Sprenger E086 (Germany)
43	AIR IS - 4A - 1680 (USA)
44	AIR IS - 4A - 1680 X (USA)
45	RS MSS (USA)
46	Air IS - 4A - 403 (USA)
47	Meisei RS2-91 (Japan)
48	VALCOM (Canada)
49	VIZ MARK II (USA)
50	Graw DFM-90 (Germany)
51	VIZ-B2 (USA)
52	Vaisala RS80-57H
53	AVK-RF95 (Russian Federation)
54	Graw DFM-97 (Germany)
55	Meisei RS-016 (Japan)
56	M2K2 (France)
57	Modem M2K2-DC (France)
58	AVK BAR (Russian Federation)
59	Modem M2K2 R 1680 MHz RDF radiosonde with pressure sensor chip (France)
60	Vaisala RS80/MicroCora (Finland)
61	Vaisala RS80/Loran/Digicora I,II or Marwin (Finland)
62	Vaisala RS80/PCCora (Finland)
63	Vaisala RS80/Star (Finland)
64	Orbital Sciences Corporation, Space Data Division, transponder radiosonde, type 909 11-XX, where XX corresponds to the model of the instrument (USA)
65	VIZ transponder radiosonde, model number 1499–520 (USA)
66	Vaisala RS80 /Autosonde (Finland)
67	Vaisala RS80/Digicora III (Finland)
68	AVK RZM-2 (Russian Federation)
69	MARL-A or Vektor-M-RZM-2 (Russian Federation)
70	Vaisala RS92/Star (Finland)
71	Vaisala RS90/Loran/Digicora I,II or Marwin (Finland)
72	Vaisala RS90/PC-Cora (Finland)
73	Vaisala RS90/Autosonde (Finland)
74	Vaisala RS90/Star (Finland)
75	AVK-MRZ-ARMA (Russian Federation)
76	AVK-RF95-ARMA (Russian Federation)
77	GEOLINK GPSonde GL98 (France)
78	Vaisala RS90/Digicora III (Finland)
79	Vaisala RS92/Digicora I,II or Marwin (Finland)
80	Vaisala RS92/Digicora III (Finland)
81	Vaisala RS92/Autosonde (Finland)
82	Sippican MK2 GPS/STAR (USA) with rod thermistor, carbon element and derived pressure
83	Sippican MK2 GPS/W9000 (USA) with rod thermistor, carbon element and derived pressure
84	Sippican MARK II with chip thermistor, carbon element and derived pressure from GPS height
85	Sippican MARK IIA with chip thermistor, carbon element and derived pressure from GPS height
86	Sippican MARK II with chip thermistor, pressure and carbon element
87	Sippican MARK IIA with chip thermistor, pressure and carbon element
88	MARL-A or Vektor-M-MRZ (Russian Federation)
89	MARL-A or Vektor-M-BAR (Russian Federation)
90	Radiosonde not specified or unknown
91	Pressure only radiosonde
92	Pressure only radiosonde plus transponder
93	Pressure only radiosonde plus radar reflector
94	No pressure radiosonde plus transponder
95	No pressure radiosonde plus radar reflector
96	Descending radiosonde
97	iMet-2/iMet-1500 RDF radiosonde with pressure sensor chip (South Africa)
98	iMet-2/iMet-1500 GPS radiosonde with derived pressure from GPS height (South Africa)
99	iMet-2/iMet-3200 GPS radiosonde with derived pressure from GPS height (South Africa)
100-109	Reserved
110	Sippican LMS5 w/Chip Thermistor, duct mounted capacitance relative humidity sensor and derived pressure from GPS height
111	Sippican LMS6 w/Chip Thermistor, external boom mounted capacitance relative humidity sensor, and derived pressure from GPS height
112	Jin Yang RSG-20A with derived pressure from GPS height GL-5000P (Republic of Korea)
113	Vaisala RS92/MARWIN MW32 (Finland)
114	Vaisala RS92/DigiCORA MW41 (Finland)
115	PAZA-12M/Radiotheodolite-UL (Ukraine)
116	PAZA-22/AVK-1 (Ukraine)
117	Graw DFM-09 (Germany)
118	Reserved
119	Polus-MRZ-N1 (Russian Federation)
120	Reserved
121	Jin Yang 1524LA LORAN-C/GL5000 (Republic of Korea)
122	Meisei RS-11G GPS radiosonde with thermistor, capacitance relative humidity sensor, and derived pressure from GPS height (Japan)
123	Vaisala RS41/DigiCORA MW41 (Finland)
124	Vaisala RS41/AUTOSONDE (Finland)
125	Vaisala RS41/MARWIN MW32 (Finland)
126	Meteolabor SRS–C34/Argus 37 (Switzerland)
127	Reserved
128	AVK - AK2-02 (Russian Federation)
129	MARL-A or Vektor-M - AK2-02 (Russian Federation)
130	Meisei RS06G (Japan)
131	Taiyuan GTS1-1/GFE(L) (China)
132	Shanghai GTS1/GFE(L) (China)
133	Nanjing GTS1-2/GFE(L) (China)
134	iMet-4 GPS radiosonde (USA)
135	Meisei iMS-100 GPS radiosonde w/thermistor sensor, capacitance relative humidity sensor, and derived pressure from GPS height (Japan)
136	Meisei iMDS-17 GPS dropsonde w/thermistor sensor, capacitance relative humidity sensor, and capacitance pressure sensor (Japan)
137	Reserved
138	WEATHEX WxR-301D with derived pressure from GPS (Republic of Korea)
139-140	Reserved
141	Vaisala RS41 with pressure derived from GPS height/ DigiCORA MW41 (Finland)
142	Vaisala RS41 with pressure derived from GPS height/ AUTOSONDE (Finland)
143	NanJing Daqiao XGP-3G (China)
144	TianJin HuaYunTianYi GTS(U)1 (China)
145	Beijing Changfeng CF-06 (China)
146	Shanghai Changwang GTS3 (China)
147	Reserved
148	PAZA-22M/MARL-A
149	Reserved
150	Meteolabor SRS-C50/Argus (Switzerland)
151	Reserved
152	Vaisala RS92-NGP/Intermet IMS-2000 (USA)
153	AVK - I-2012 (Russian Federation)
154	Graw DFM-17 (Germany)
155-159	Reserved
160	MARL-A or Vektor-M - I-2012 (Russian Federation)
161	Reserved
162	MARL-A or Vektor-M - MRZ-3MK (Russian Federation)
163	Modem M20 radiosonde w/thermistor sensor, capacitance relative humidity sensor, and derived pressure from GPS height (France)
164	Modem PilotSonde GPS radiosonde (France)
165	Meteosis MTS-01 (Republic of Turkiye)
166-172	Reserved
173	MARL-A (Russian Federation) - ASPAN-15 (Kazakhstan)
174-176	Reserved
177	Modem GPSonde M10 (France)
178-181	Reserved
182	Lockheed Martin LMS-6 w/chip thermistor, external boom mounted polymer capacitive relative humidity sensor, capacitive pressure sensor and GPS wind
183	Vaisala RS92-D/Intermet IMS 1500 w/silicon capacitive pressure sensor, capacitive wire temperature sensor, twin thin-film heated polymer capacitive relative humidity sensor and RDF wind
184	iMet-54/iMet-3200/3400 GPS radiosonde with derived pressure from GPS height (South Africa)
185-189	Reserved
190	NCAR research dropsonde NRD94 with GPS and Vaisala RS92-based sensor module (United States)
191	NCAR research dropsonde NRD41 with GPS and Vaisala RS41-based sensor module (United States)
192	Vaisala/NCAR dropsonde RD94 with GPS and Vaisala RS92-based sensor module (Finland/USA)
193	Vaisala/NCAR dropsonde RD41 with GPS and Vaisala RS41-based sensor module (Finland/USA)
194-199	Reserved
200	Nanjing GTS11 (China)
201	Shanghai GTS12 (China)
202	Taiyuan GTS13 (China)
203	Shanghai GTS14 (China)
204-254	Reserved
255	Missing value

0-02-013 - SIRC

Solar and infrared radiation correction

Code figure	Meaning
0	No correction
1	CIMO solar corrected and CIMO infrared corrected
2	CIMO solar corrected and infrared corrected
3	CIMO solar corrected only
4	Solar and infrared corrected automatically by radiosonde system
5	Solar corrected automatically by radiosonde system
6	Solar and infrared corrected as specified by country
7	Solar corrected as specified by country
8	Solar and infrared corrected as specified by GRUAN
9	Solar corrected as specified by GRUAN
10-14	Reserved
15	Missing value

0-02-014 - TTSS

Tracking technique/status of system used

Code figure	Meaning
0	No wind finding
1	Automatic with auxiliary optical direction finding
2	Automatic with auxiliary radio direction finding
3	Automatic with auxiliary ranging
4	Reserved
5	Automatic with multiple VLF-Omega signals
6	Automatic cross chain Loran-C
7	Automatic with auxiliary wind profiler
8	Automatic satellite navigation
9-18	Reserved
19	Tracking technique not specified
20	Vessel stopped
21	Vessel diverted from original destination
22	Vessel's arrival delayed
23	Container damaged
24	Power failure to container
25-28	Reserved
29	Other problems
30	Major power problems
31	UPS inoperative
32	Receiver hardware problems
33	Receiver software problems
34	Processor hardware problems
35	Processor software problems
36	NAVAID system damaged
37	Shortage of lifting gas
38	Reserved
39	Other problems
40	Mechanical defect
41	Material defect (hand launcher)
42	Power failure
43	Control failure
44	Pneumatic/hydraulic failure
45	Other problems
46	Compressor problems
47	Balloon problems
48	Balloon release problems
49	Launcher damaged
50	R/S receiver antenna defect
51	NAVAID antenna defect
52	R/S receiver cabling (antenna) defect
53	NAVAID antenna cabling defect
54-58	Reserved
59	Other problems
60	ASAP communications defect
61	Communications facility rejected data
62	No power at transmitting antenna
63	Antenna cable broken
64	Antenna cable defect
65	Message transmitted power below normal
66-68	Reserved
69	Other problems
70	All systems in normal operation
71-98	Reserved
99	Status of system and its components not specified
100-126	Reserved
127	Missing value

0-02-015 - RACP

Radiosonde completeness

Code figure	Meaning
0	Reserved
1	Pressure only radiosonde
2	Pressure only radiosonde plus transponder
3	Pressure only radiosonde plus radar reflector
4	No-pressure radiosonde plus transponder
5	No-pressure radiosonde plus radar reflector
6-14	Reserved
15	Missing value

0-02-016 - RCONF

Radiosonde configuration

Bit number	Meaning
1	Train regulator
2	Light unit
3	Parachute
4	Rooftop release
All 5	Missing value

0-02-017 - CAHM

Correction algorithms for humidity measurements

Code figure	Meaning
0	No corrections
1	Time lag correction provided by the manufacturer
2	Solar radiation correction provided by the manufacturer
3	Solar radiation and time lag correction provided by the manufacturer
4-6	Reserved
7	GRUAN solar radiation and time lag correction
8-30	Reserved
31	Missing value

0-02-019 - SIID

Satellite instruments

Code figure	Meaning
0-6	Reserved
7	DoD Infrared radiometer SSH (Special Sensor H)
8	DoD Radiometer SSM/T (Special Sensor Microwave-Temperature)
9	DoD Radiometer SSM/T2 (Special Sensor Microwave-Humidity)
10	BNSC Radiometer AATSR (Advanced along track scanning radiometer)
11	BNSC Radiometer ATSR (Along track scanning radiometer)
12	BNSC Radiometer ATSR-2 (Along track scanning radiometer - 2)
13	BNSC Radiometer MWR (Microwave radiometer)
14	UKSA Radiometer PMR (Pressure modulator radiometer)
15	UKSA Radiometer SCR (Selective Chopper Radiometer)
16-29	Reserved
30	CNES Communications ARGOS
31-39	Reserved
40	CNES Lidar Laser reflectors
41	CNES Lidar DORIS (Doppler orbitography and radio-positioning integrated by satellite)
42	CNES Lidar DORIS-NG (Doppler orbitography and radio-positioning integrated by satellite-NG)
43-46	Reserved
47	CNES Radar altimeter POSEIDON-1 (SSALT1) (Positioning ocean solid Earth ice dynamics orbiting navigator (single frequency solid state radar altimeter))
48	CNES Radar altimeter POSEIDON-2 (SSALT2) (Positioning ocean solid Earth ice dynamics orbiting navigator (double frequency solid state radar altimeter))
49	CNES Radar altimeter POSEIDON-3 (SSALT3) (Advanced microwave radiometer)
50	CNES Imager radiometer ATSR/M (ATSR/M)
51	CNES High resolution optical imager HRG
52	CNES Radiometer HRV (High-resolution visible)
53	CNES Radiometer HRVIR (High-resolution visible and infrared)
54	CNES Radiometer ScaRaB/MV2 (Scanner for Earth's radiation budget)
55	CNES Radiometer POLDER (POLDER)
56	CNES Imaging multi-spectral radiometer IIR (Imaging Infrared Radiometer)
57	ESA/EUMETSAT Radar altimeter POSEIDON-4 (High precision altimetry, dual frequency (C and Ku band) pulse-width limited radar altimeter, synthetic-aperture processing, interleaved Low Rate and High Rate)
58-59	Reserved
60	CNES Spectrometer VEGETATION (VEGETATION)
61	CNES Spectrometer WINDII (WINDII)
62	CNES Altimeter AltiKa (Ka band Radar Altimeter)
63	CNES Rotating multi-beam altimeter SWIM (Surface Waves Investigation and Monitoring)
64-79	Reserved
80	CSA Communications RADARSAT DTT
81	CSA Communications RADARSAT TTC
82-84	Reserved
85	CSA Radar SAR (CSA) (Synthetic aperture radar (CSA))
86-89	Reserved
90	CSA Radiometer MOPITT (Measurements of pollution in the troposphere)
91	CSA Atmospheric chemistry instrument OSIRIS (Optical spectrograph and Infrared imaging system)
92	CSA Limb-scanning sounder ACE-FTS (Atmospheric Chemistry Experiment - Fourier Transform Spectrometer)
93-96	Reserved
97	CSIRO Radiometer Panchromatic imager
98	CRCSS Atmospheric temperature and humidity sounder GPS receiver
99-101	Reserved
102	DLR Radiometer CHAMP GPS sounder (GPS turborogue space receiver (TRSR))
103	DLR Radiometer IGOR (Integrated GPS and Occultation Receiver)
104	NASA GNSS occultation sounder Tri-G (Triple-G (GPS, Galileo, GLONASS))
105-115	Reserved
116	DLR Magnetometer CHAMP gravity package (Accelerometer+GPS) (STAR accelerometer)
117	DLR Magnetometer CHAMP magnetometry package (1 scalar+2 vector magnetometer) (Overhauser magnetometer (OVM) and fluxgate magnetometer (FGM))
118-119	Reserved
120	ESA Communications ENVISAT Comms (Communications package on ENVISAT)
121	ESA Communications ERS Comms (Communication package for ERS)
122-129	Reserved
130	ESA Lidar ALADIN (Atmospheric laser doppler instrument)
131	ESA Lidar ATLID (Atmospheric lidar)
132-139	Reserved
140	ESA Radar AMI/SAR/Image (Active microwave instrumentation image mode)
141	ESA Radar AMI/SAR/wave (Active microwave instrumentation wave mode)
142	ESA Radar AMI/scatterometer (Active microwave instrumentation wind mode)
143	ESA Radar ASAR (ASAR)
144	ESA Imaging microwave ASAR (Advanced synthetic aperture radar (image mode))
145	ESA Imaging microwave ASAR (Advanced synthetic aperture radar (wave mode))
146	ESA Cloud profile and rain radar CPR (Cloud radar)
147	ESA Radar RA-2/MWR (Radar altimeter - 2)
148	ESA Radar RA/MWR (Radar altimeter)
149	Reserved
150	ESA Scatterometer SCATTEROMETER (Scatterometer)
151	ESA Imaging radar SAR-C (Synthetic Aperture Radar (C-band))
152	Cross-nadir scanning SW (Sounder TROPOMI Tropospheric Monitoring Instrument)
153-160	Reserved
161	ESA Radiometer MIPAS (Michelson interferometric passive atmosphere sounder)
162	ESA Imaging multi-spectral radiometer (passive microwave) MWR-2 (Microwave radiometer-2)
163	ESA Atmospheric chemistry instrument SOPRANO (Sub-milimetre observation of processes in the absorption noteworthy for ozone)
164-169	Reserved
170	ESA Atmospheric chemistry instrument GOME (Global ozone monitoring experiment)
171	Reserved
172	ESA Spectrometer GOMOS (Global ozone monitoring by occultation of stars)
173	ESA Spectrometer ALTIUS (Atmospheric Limb Tracker for Investigation of the Upcoming Stratosphere)
174	ESA Spectrometer MERIS (Medium resolution imaging spectrometer)
175	ESA Spectrometer SCIAMACHY (Scanning imaging absorption spectrometer for atmospheric cartography)
176	ESA Radiometer MIRAS (Microwave Imaging Radiometer Using Aperture Synthesis)
177	ESA Radar Altimeter SIRAL (SAR/Interferometric Radar Altimeter)
178	ESA Radar Altimeter SRAL (Synthetic aperture radar altimeter)
179	Moderate resolution optical imager OLCI (Ocean and land colour imager)
180	Moderate resolution optical imager SLSTR (Sea and land surface temperature radiometer)
181	EUMETSAT Communications METEOSAT Comms (Communications package for METEOSAT)
182	EUMETSAT Communications MSG Comms (Communications package for MSG)
183-189	Reserved
190	ESA/EUMETSAT Scatterometer ASCAT (Advanced scatterometer)
191-199	Reserved
200	EUMETSAT Radiometer GERB (Geostationary Earth radiation budget)
201	Reserved
202	ESA/EUMETSAT Radiometer GRAS (GNSS receiver for atmospheric sounding)
203	EUMETSAT Radiometer MHS (Microwave humidity sounder)
204	Reserved
205	EUMETSAT Radiometer MVIRI (METEOSAT visible and infrared imager)
206	Reserved
207	EUMETSAT Radiometer SEVIRI (Spinning enhanced visible and infrared imager)
208	EUMETSAT Imaging multi-spectral radiometer (vis/IR) VIRI (VIRI)
209	Reserved
210	ESA/EUMETSAT/Thales Alenia Space Imager FCI (Flexible Combined Imager)
211	ESA/EUMETSAT/Leonardo Imager LI (Lightning Imager)
212	EUMETSAT/OHB Interferometer IRS (Infrared Sounder)
213	ESA/EUMETSAT/Copernicus - Airbus Spectrometer S4 (Ultraviolet and Near-Infrared Multispectral Spectrometer (S4 UVN))
214-219	Reserved
220	ESA/EUMETSAT Spectrometer GOME-2 (Global ozone monitoring experiment - 2)
221	CNES/EUMETSAT Atmospheric temperature and humidity sounder IASI (Infrared atmospheric sounding interferometer)
222-229	Reserved
230	ESA/EUMETSAT Radiometer 3MI (Multi-viewing Multi-channel Multi-polarisation Imaging)
231	CNES/EUMETSAT Sounder-Interferometer IASI-NG (Infrared Atmospheric Sounding Interferometer - New Generation)
232	DLR/EUMETSAT Radiometer METimage (Meteorological Imager)
233	ESA/EUMETSAT Radiometer MWS (Microwave Sounder)
234	ESA/EUMETSAT Radio Occultation RO (Radio Occultation)
235	ESA/EUMETSAT Spectrometer S5/UVNS (Copernicus Sentinel-5 Ultraviolet Visible Near-infrared and Shortwave-infrared Spectrometer)
236	ESA/EUMETSAT Radiometer ICI (Ice Cloud Imager)
237	ESA/EUMETSAT Radiometer MWI (Microwave Imager)
238	ESA/EUMETSAT Radar SCA (Scatterometer)
239	Reserved
240	CAST Communications DCP (Data-collection platform transponder)
241-244	Reserved
245	CAST Radiometer CCD (High-resolution CCD camera)
246	INPE Atmospheric temperature and humidity sounder HSB (Humidity sounder/Brazil)
247	Reserved
248	INPE Imaging multi-spectral radiometer (vis/IR) OBA (Observador Brasileiro da Amazonia)
249	Reserved
250	CAST Radiometer WFI (Wide field imager)
251-254	Reserved
255	CAST Spectrometer IRMSS (Infrared multispectral scanner)
256-259	Reserved
260	ISRO Precision orbit BSS & FSS transponders
261	ISRO Precision orbit DRT-S&R
262	ISRO Communications INSAT Comms (Communications package for INSAT)
263-267	Reserved
268	ISRO High resolution optical imager HR-PAN (High-resolution panchromatic camera)
269	ISRO Imaging multi-spectral radiometer (passive microwave) MSMR (Multifrequency scanning microwave radiometer)
270	ISRO Imaging multi-spectral radiometer (vis/IR) VHRR (Very high resolution radiometer)
271	ISRO Imaging multi-spectral radiometer (vis/IR) WiFS (Wide field sensor)
272-274	Reserved
275	ISRO High-resolution optical imager AWiFS (Advanced wide field sensor)
276	ISRO High-resolution optical imager LISS-I (Linear imaging self scanner - I)
277	ISRO High-resolution optical imager LISS-II (Linear imaging self scanner - II)
278	ISRO High-resolution optical imager LISS-III (Linear imaging self scanner - III)
279	ISRO High-resolution optical imager LISS-IV (Linear imaging self scanner - IV)
280-283	Reserved
284	ISRO High-resolution optical imager PAN (Panchromatic sensor)
285	ISRO Imaging multi-spectral radiometer (vis/IR) MOS (Modular opto-electronic scanner)
286	ISRO Ocean colour instrument OCM (Ocean colour monitor)
287	ASI ROSA (Radio Occultation Sounder of the Atmosphere)
288	ISRO Scatterometer SCAT (Scatterometer)
289	ISRO Optical imager IMG (Imager)
290	JMA Communications MTSAT Comms (Communications package for MTSAT)
291	JMA Communications Himawari Comms (Communications package for Himawari)
292-293	Reserved
294	JMA Imaging multi-spectral radiometer IMAGER/MTSAT-2 (Imager/MTSAT-2)
295	JMA Imaging multi-spectral radiometer JAMI (Japanese Advanced Meteorological Imager)
296	JMA Imaging multi-spectral radiometer VISSR (Visible and infrared spin scan radiometer)
297	JMA Imaging multi-spectral radiometer AHI (Advanced Himawari Imager)
298-299	Reserved
300	NASA Lidar GLAS (Geoscience laser altimeter system)
301	NASA Precision orbit LRA (Laser retroreflector array)
302	NASA Lidar MBLA (Multi beam laser altimeter)
303	NASA Lidar CALIOP (Cloud-aerosol lidar with orthogonal polarization)
304-308	Reserved
309	NASA Cloud profile and rain radar CPR (Cloudsat) (Cloud profiling radar)
310-311	Reserved
312	NASA Radar NSCAT (NASA scatterometer)
313	NASA Radar SeaWinds (ADEOS II - NASA scatterometer)
314	NASA Radar RapidScat (RapidScat scatterometer)
315-329	Reserved
330	NASA Earth radiation budget radiometer ACRIM (Active cavity radiometer irradiance monitor)
331-333	Reserved
334	NASA Total and profile ozone BUV (Backscatter ultraviolet instrument)
335	Reserved
336	NASA High-resolution optical imager ALI (Advanced land imager)
337-346	Reserved
347	NASA High-resolution optical imager ASTER (Advanced spaceborne thermal emission and reflection radiometer)
348	NASA Earth radiation budget radiometer CERES-2 (Cloud and the Earth's radiant energy system)
349-350	Reserved
351	NASA Atmospheric temperature and humidity sounder GPSDR (GPS demonstration receiver)
352	Reserved
353	NASA Total and profile ozone HiRDLS (High-resolution dynamics limb sounder)
354	NASA Total and profile ozone HRDI (High-resolution Doppler imager)
355	Reserved
356	NASA Radiometer LIS (Lightning imaging sensor)
357	Reserved
358	NASA Magnetic field, Auroal imagery Scintillation boundary PEM (Particle environment monitor)
359	NASA Ocean colour instrument SeaWiFS (Sea-viewing wide field-of-view sensor)
360	NASA Earth radiation budget radiometer SUSIM (UARS) (Solar ultraviolet irradiance monitor)
361-362	Reserved
363	NASA Total and profile ozone SBUV/1 (Solar backscatter ultraviolet 1 instrument)
364	Reserved
365	NASA Imaging multi-spectral radiometer (passive microwave) TMI (TRMM microwave imager)
366	NASA Imaging multi-spectral radiometer (passive microwave) JMR (JASON-1 microwave radiometer)
367	NASA Imaging multi-spectral radiometer AMR (Positioning ocean solid Earth ice dynamics orbiting navigator (double frequency solid state radar altimeter))
368	Reserved
369	NASA Total and profile ozone LIMS (Limb infrared monitor of the stratosphere)
370	NASA Total and profile ozone LRIR (Limb radiance inversion radiometer instrument)
371	NASA Total and profile ozone EPIC (Earth polychromatic imaging camera)
372	NASA Earth radiation budget radiometer NISTAR (NIST advanced radiometer)
373	NASA Magnetic field, auroal imagery scintillation boundary Plasma-Mag
374	NASA Other XPS (XUV photometer system)
375	NASA Imaging multi-spectral radiometer (vis/IR) VIRS (Visible infrared scanner)
376	CNES Multiple direction/polarisation radiometer POLDER II (Polarization and directionality of the Earth's reflectance - II)
377	NASA Earth radiation budget radiometer TIM (Total irradiance monitor)
378	Reserved
379	NASA Imaging multi-spectral radiometer (vis/IR) WFC (Wide field camera)
380-381	Reserved
382	NASA Spectro-radiometer CLAES (Cryogenic limb array etalon spectrometer)
383	NASA Spectro-radiometer HALOE (Halogen occultation experiment)
384	NASA Spectro-radiometer ISAMS (Improved stratospheric and mesospheric sounder)
385	NASA Spectro-radiometer MISR (Multi-angle imaging spectroradiometer)
386	NASA Spectro-radiometer MLS (Microwave limb sounder)
387	NASA Spectro-radiometer MLS (EOS-Aura) (Microwave limb sounder (EOS-Aura))
388	Reserved
389	NASA Spectro-radiometer MODIS (Moderate-resolution imaging spectroradiometer)
390-392	Reserved
393	NASA Gravity HAIRS (High accuracy inter-satellite ranging system)
394	NASA Total and profile ozone OMI (Ozone measuring instrument)
395	NASA Radiometer Atmospheric corrector (Atmospheric corrector)
396	NASA Radiometer Hyperion (Hyperspectral imager)
397	NASA Radiometer HRIR (High-resolution infrared radiometer)
398	NASA Radiometer MRIR (Single-channel infrared radiometer)
399	NASA Spectro-radiometer SAGE I (Stratospheric aerosol and gas experiment-I)
400	NASA Spectro-radiometer SAGE II (Stratospheric aerosol and gas experiment-II)
401	NASA Spectro-radiometer SAGE III (Stratospheric aerosol and gas experiment-III)
402	NASA Spectro-radiometer SAMS (Stratospheric and mesospheric sounder)
403	NASA Spectro-radiometer SAM-II (Stratospheric aerosol measurement - II)
404	NASA Spectro-radiometer IRIS (Infrared interferometer spectrometer)
405	NASA Atmospheric temperature and humidity sounder GIFTS (Geosynchronous imaging fourier transform spectrometer)
406-419	Reserved
420	NASA Spectrometer AIRS (Atmospheric Infrared sounder)
421	NASA Spectrometer SIRS-A (Satellite infrared spectrometer-A)
422	NASA Spectrometer SIRS-B (Satellite infrared spectrometer-B)
423-425	Reserved
426	NASA Spectrometer SOLSTICE (Solar stellar irradiance comparison experiment)
427-429	Reserved
430	NASA Spectrometer TES (Troposhperic emission spectrometer)
431	NASA Spectrometer TOMS (Total ozone mapping spectrometer)
432	NASA Spectrometer OCO (Orbiting Carbon Observatory)
433	NASA Spectrometer TMS (TROPICS Millimeter-wave Sounder)
434	NASA MW radiometer SMAP (Soil Moisture Active-Passive)
435-449	Reserved
450	JAXA Communications ADEOS Comms (Communications package for ADEOS)
451	JAXA Communications DCS (JAXA) (Data collection system (JAXA))
452	Reserved
453	NASDA Communications GMS Comms (Communications package on GMS)
454	NASDA Communications JERS-1 Comms (Communications package for JERS-1)
455-459	Reserved
460	NASDA Lidar RIS (Retroreflector in space)
461	NASDA Radar PR (Precipitation radar)
462	NASDA Imaging microwave radar SAR (Synthetic aperture radar)
463-469	Reserved
470	JAXA Imaging microwave radar PALSAR (Phased array type L-band synthetic aperture radar)
471-477	Reserved
478	JAXA Imaging multi-spectral radiometer (passive microwave) AMSR2 (Advanced microwave scanning radiometer 2)
479	JAXA Imaging multi-spectral radiometer (passive microwave) AMSR-E (Advanced microwave scanning radiometer-EOS)
480	JAXA High resolution optical imager PRISM (ALOS) (Panchromatic remote-sensing Instrument for stereo mapping)
481	JAXA Radiometer AMSR (Advanced microwave scanning Radiometer)
482	NASDA High-resolution optical imager AVNIR (Advanced visible and near infrared radiometer)
483	JAXA High-resolution optical imager AVNIR-2 (Advanced visible and near infra-red radiometer type 2)
484	JAXA Imager GLI (Global imager)
485	NASDA Radiometer MESSR (Multispectral electronic self scanning radiometer)
486	NASDA Radiometer MSR (Microwave scanning radiometer)
487	NASDA Radiometer OCTS (Ocean color and temperature scanner)
488	NASDA Radiometer OPS (Optical sensor)
489	NASDA Radiometer VISSR (GMS-5) (Visible and infrared spin scan radiometer (GMS-5))
490	NASDA Radiometer VTIR (Visible and thermal infrared radiometer)
491-509	Reserved
510	NASDA Spectrometer ILAS-I (Imoroved limb atmosphiric spectrometer)
511	NASDA Spectrometer ILAS-II (Improved limb atmosphiric spectrometer)
512	NASDA Spectrometer IMG (Inferometric monitor of greenhouse gases)
513	Reserved
514	NASDA Space environment SEM (Space environment monitor (NASDA))
515	JAXA Total and profile ozone SOFIS (Solar occultation Fourier transform spectrometer for Inclined orbit Satellite)
516	JAXA Spectrometer TANSO-FTS (Thermal and Near infrared Sensor for carbon Observations ( TANSO) Fourier Transform Spectrometer (FTS))
517	JAXA Imager TANSO-CAI (Thermal and Near infrared Sensor for carbon Observations ( TANSO) Cloud and Aerosol Imager (CAI))
518	JAXA Cloud and precipitation radar DPR (Dual-frequency precipitation radar)
519	JAXA MW imaging/sounding radiometer, conical scanning GMI (GPM microwave imager)
520	NASA Imaging radiometer SMMR (Scanning Multichannel Microwave Radiometer)
521-525	Reserved
526	GeoOptics GNSS occultation sounder Cion-A (GeoOptics Cion GNSS occultation receiver A)
527	GeoOptics GNSS occultation sounder Cion-B (GeoOptics Cion GNSS occultation receiver B)
528	GeoOptics GNSS occultation sounder Cion-C (GeoOptics Cion GNSS occultation receiver C)
529	GeoOptics GNSS occultation sounder Cion-D (GeoOptics Cion GNSS occultation receiver D)
530	Spire GNSS occultation sounder SGNOS-A (Spire global navigation satellite system occultation sounder A)
531	Spire GNSS occultation sounder SGNOS-B (Spire global navigation satellite system occultation sounder B)
532	Spire GNSS occultation sounder SGNOS-C (Spire global navigation satellite system occultation sounder C)
533	Spire GNSS occultation sounder SGNOS-D (Spire global navigation satellite system occultation sounder D)
534	PlanetiQ GNSS occultationsounder Pyxis-A (PlanetiQ Pyxis GNSS occultation receiver A)
535	PlanetiQ GNSS occultationsounder Pyxis-B (PlanetiQ Pyxis GNSS occultation receiver B)
536-539	Reserved
540	NOAA Communications DCS (NOAA) (Data-collection system (NOAA))
541	NOAA Communications GOES Comms (Communications package on GOES)
542	NOAA Communications LANDSAT Comms (Communications package for LANDSAT)
543	NOAA Communications NOAA Comms (Communications package for NOAA)
544	NOAA Communications S&R (GOES) (Search and rescue)
545	NOAA Communications S&R (NOAA) (Search and rescue)
546	NOAA Communications WEFAX (Weather facsimile)
547	NOAA Spectrometer SEM(GOES) (Space environment monitor)
548-549	Reserved
550	NOAA Magnetic field SSM (Special sensor magnetometer)
551	NOAA Magnetic field SSJ/4 (Special sensor precipitating plasma monitor)
552	NOAA Space environment SSIES-2 (Special sensor ionospheric plasma drift/scintillation meter)
553	NOAA Space environment SSB/X-2 (Special sensor gamma ray particle dectector)
554-569	Reserved
570	NOAA Radiometer AMSU-A (Advanced microwave sounding unit-A)
571-573	Reserved
574	NOAA Radiometer AMSU-B (Advanced microwave sounding unit-B)
575-579	Reserved
580	NOAA Radiometer ATOVS (HIRS/3 + AMSU + AVHRR/3) (Advanced TIROS operational vertical sounder)
581-589	Reserved
590	NOAA Radiometer AVHRR/2 (Advanced very high-resolution radiometer/2)
591	NOAA Radiometer AVHRR/3 (Advanced very high-resolution radiometer/3)
592	NOAA Radiometer AVHRR/4 (Advanced very high-resolution radiometer/4)
593-599	Reserved
600	NOAA Radiometer ERBE (Earth's radiation budget experiment)
601	NOAA Radiometer ETM+ (Enhanced thematic mapper)
602-603	Reserved
604	NOAA Radiometer HIRS/1 (High-resolution infrared sounder/1)
605	NOAA Radiometer HIRS/2 (High-resolution infrared sounder/2)
606	NOAA Radiometer HIRS/3 (High-resolution infrared sounder/3)
607	NOAA Radiometer HIRS/4 (High-resolution infrared sounder/4)
608-614	Reserved
615	NOAA Radiometer IMAGER (Imager)
616	NOAA Imaging multi-spectral radiometer (vis/IR) VIIRS (Visible/infrared imager radiometer suite)
617	NOAA Imaging multi-spectral radiometer ABI (Advanced baseline imager)
618	NOAA High-resolution optical imager GLM (Geostationary lightning mapper)
619	Reserved
620	NOAA Atmospheric temperature and humidity sounder CrIRS/NP (Cross track infrared sounder/NPOESS)
621	NOAA Atmospheric temperature and humidity sounder ATMS (Advanced technology microwave sounder)
622	NOAA Radiometer MSS (Multispectral scanning system)
623	NOAA Radiometer MSU (Microwave sounding unit)
624	NOAA Radiometer SBUV/2 (Solar backscattter ultraviolet instrument/2)
625	NOAA Radiometer SBUV/3 (Solar backscattter ultraviolet instrument/3)
626	NOAA Radiometer SOUNDER (SOUNDER)
627	NOAA Radiometer SSU (Stratospheric sounding unit)
628	NOAA Radiometer TM (Thematic mapper)
629	NOAA Radiometer TOVS (HIRS/2 + MSU + SSU) (TIROS operational vertical sounder)
630	NOAA Radiometer VAS (VISSR atmospheric sounder)
631	NOAA Radiometer SSZ
632-644	Reserved
645	NOAA Spectrometer SEM (Space environment monitor)
646-649	Reserved
650	NRSCC Radiometer MVIRSR (10 channel) (Multispectral visible and infrared scan radiometer)
651	NRSCC Radiometer MVIRSR (3 channel) (Multispectral visible and infrared scan radiometer)
652	NRSCC Radiometer MVIRSR (5 channel) (Multispectral visible and infrared scan radiometer)
653-669	Reserved
670	NSAU Radar RLSBO (Side looking microwave radar)
671-679	Reserved
680	NSAU High-resolution optical imager MSU-EU (Multi-spectral radiometer with high resolution)
681	NSAU Imaging multi-spectral radiometer (vis/IR) MSU-UM (Visible multi-spectral radiometer)
682	NSAU Radiometer RM-08 (Imaging microwave radiometer)
683	NSAU High-resolution optical imager SU-UMS (Stereo radiometer with high resolution)
684	NSAU High-resolution optical imager SU-VR (Visible radiometer with high resolution)
685	NSAU Radiometer TRASSER
686	SOA Scatterometer SCAT (Scatterometer)
687	SOA Radar altimeter ALT (Radar altimeter)
688	SOA Microwave radiometer MWI (Microwave radiometer)
689	ME(NIER) Spectrometer GEMS (Geostationary Environmental Monitoring Spectrometer)
690-699	Reserved
700	ROSCOSMOS Communications KONDOR-2 (Data collection and transmission system)
701	ROSCOSMOS Communications BRK
702-709	Reserved
710	ROSCOSMOS Lidar ALISSA (Backscatter lidar)
711	Reserved
712	ROSCOSMOS Lidar Balkan-2 lidar
713-714	Reserved
715	ROSCOSMOS Lidar MK-4
716	ROSCOSMOS Lidar MK-4M
717-729	Reserved
730	ROSCOSMOS Radar Greben (Radar altimeter)
731	ROSCOSMOS Radar SAR-10 (Synthetic aperture radar)
732	ROSCOSMOS Radar SAR-3 (Synthetic aperture radar)
733	ROSCOSMOS Radar SAR-70 (Synthetic aperture radar)
734-739	Reserved
740	ROSCOSMOS Radar SLR-3 (Side looking radar)
741-744	Reserved
745	ROSCOSMOS Radar Travers SAR
746-749	Reserved
750	ROSCOSMOS Radiometer 174-K (Temperature and humidity profiler)
751	ROSCOSMOS Radiometer BTVK (Scanning television radiometer)
752	ROSCOSMOS Radiometer Chaika (Scanning infrared radiometer)
753	ROSCOSMOS Radiometer DELTA-2 (Multispectral microwave scanner)
754	Reserved
755	ROSCOSMOS Radiometer IKAR-D (Multispectral microwave scanner)
756	ROSCOSMOS Radiometer IKAR-N (Multispectral microwave scanner)
757	ROSCOSMOS Radiometer IKAR-P (Multispectral microwave scanner)
758-759	Reserved
760	ROSCOSMOS Radiometer ISP
761	ROSCOSMOS Radiometer KFA-1000 (Photographic camera)
762	ROSCOSMOS Radiometer KFA-200 (Photographic camera)
763	ROSCOSMOS Radiometer KFA-3000 (Photographic camera)
764-769	Reserved
770	ROSCOSMOS Radiometer Klimat (Scanning infrared radiometer)
771	ROSCOSMOS Radiometer Klimat-2 (Scanning infrared radiometer)
772-774	Reserved
775	ROSCOSMOS Radiometer MIRAS
776	ROSCOSMOS Radiometer MIVZA
777	ROSCOSMOS Radiometer MIVZA-M (Microwave scanning radiometer)
778-779	Reserved
780	ROSCOSMOS Radiometer MR-2000
781	ROSCOSMOS Radiometer MR-2000M
782-784	Reserved
785	ROSCOSMOS Radiometer MR-900 (Scanning telephotometer)
786	ROSCOSMOS Radiometer MR-900B (Scanning visual band telephotometer)
787-789	Reserved
790	ROSCOSMOS Radiometer MSU-E (Multispectral high-resolution electronic scanner)
791	ROSCOSMOS Radiometer MSU-E1 (Multispectral high-resolution electronic scanner)
792	ROSCOSMOS Radiometer MSU-E2 (Multispectral high-resolution electronic scanner)
793	ROSCOSMOS Radiometer MSU-M
794	ROSCOSMOS Radiometer MSU-S (Multispectral medium-resolution scanner)
795	ROSCOSMOS Radiometer MSU-SK (Multispectral medium-resolution conical scanner)
796	ROSCOSMOS Radiometer MSU-V (Multispectral high-resolution conical scanner)
797-809	Reserved
810	ROSCOSMOS Radiometer MTZA (Scanning microwave radiometer)
811-814	Reserved
815	ROSCOSMOS Imaging multi-spectral radiometer (passive microwave) MZOAS (Scanning microwave radiometer)
816-819	Reserved
820	ROSCOSMOS Imaging multi-spectral radiometer (passive microwave) R-225 (Single channel microwave radiometer)
821	ROSCOSMOS Radiometer R-400
822	ROSCOSMOS Radiometer R-600 (Single channel microwave radiometer)
823-829	Reserved
830	ROSCOSMOS Radiometer RMS (Radiation measurement system)
831-834	Reserved
835	ROSCOSMOS Radiometer TV camera
836	ROSCOSMOS Radiometer SILVA
837-839	Reserved
840	ROSCOSMOS Spectro-radiometer SROSMO (Spectroradiometer for ocean monitoring)
841-849	Reserved
850	ROSCOSMOS Spectrometer BUFS-2 (Backscatter spectrometer/2)
851	ROSCOSMOS Spectrometer BUFS-4 (Backscatter spectrometer/4)
852-854	Reserved
855	ROSCOSMOS Spectrometer ISTOK-1 (Infrared spectrometer)
856	ROSCOSMOS Spectrometer SFM-2 (Spectrometer to measure direct solar radiation)
857	ROSCOSMOS Spectrometer DOPI
858	ROSCOSMOS Spectrometer KGI-4
859	ROSCOSMOS Spectrometer Ozon-M
860	ROSCOSMOS Spectrometer RMK-2
861	ROSCOSMOS Atmospheric temperature and humidity sounder MTVZA-GY (Module for temperature and humidity sounding in the atmosphere)
862	ROSCOSMOS Spectrometer IKFS-2 (Infrared Fourier spectrometer)
863-899	Reserved
900	NOAA Radiometer MAXIE (Magnetospheric atmospheric X-ray imaging experiment)
901	NOAA Radiometer OLS (Operational linescan system)
902-904	Reserved
905	NOAA Radiometer SSM/I (Mission sensor microwave imager)
906	NOAA Radiometer SSM/T-1 (Mission sensor microwave temperature sounder)
907	NOAA Radiometer SSM/T-2 (Mission sensor microwave water vapour sounder)
908	NOAA Radiometer SSMIS (Special sensor microwave imager sounder)
909	NOAA Radiometer VTPR (Vertical temperature profile radiometer)
910	NOAA Radiometer SXI (Solar X-ray imager)
911-929	Reserved
930	NOAA Spectrometer EHIC (Energetic heavy ion composition experiment)
931	NOAA Spectrometer X-ray astronomy payload
932	NRSCC Imaging multi-spectral radiometer (vis/IR) IVISSR (FY-2) (Improved multispectral visible and Infrared scan radiometer (5 channels))
933	NRSCC Atmospheric temperature and humidity sounder IRAS (Infrared atmospheric sounder)
934	NRSCC Atmospheric temperature and humidity sounder MWAS (MicroWave atmospheric sounder)
935	NRSCC Atmospheric temperature and humidity sounder IMWAS (Improved MicroWave atmospheric sounder)
936	NRSCC Atmospheric temperature and humidity sounder MWHS (Microwave humidity sounder)
937	NRSCC Imaging multi-spectral radiometer (vis/IR) MVIRS (Moderate resolution visible and infrared imaging spectroradiometer)
938	NRSCC Imaging multi-spectral radiometer (passive microwave) MWRI (Microwave radiation imager)
939	Reserved
940	ROSCOSMOS Atmospheric temperature and humidity sounder MTVZA-OK (Scanning microwave radiometer)
941	CNES Atmospheric temperature and humidity sounder SAPHIR
942	CNES Microwave imager MADRAS (Microwave Analysis and Detection of Rain and Atmospheric Structures)
943	CNSA Scatterometer SCAT (on CFOSAT) Scatterometer
944	NOAA Radar altimeter ALT (Altimeter)
945	NOAA Earth radiation budget radiometer TSIS (Total solar irradiance sensor)
946	NOAA Imaging multi-spectral radiometer (passive microwave) CMIS (Conical-scanning microwave imager/sounder)
947	NOAA Total and profile ozone OMPS (Ozone mapping and profiler suite)
948	NOAA Space environment atmospheric temperature and humidity sounder GPSOS (Global positioning system occultation sensor)
949	NOAA Magnetic field, Auroal imagery Scintillation boundary SESS (Space environmental sensor suite)
950	NRSCC Imaging multi-spectral radiometer (vis/IR) VIRR (Multispectral visible and infrared scan radiometer (10 channels))
951	NRSCC Total and profile ozone TOM (Total ozone mapper)
952	NRSCC Total and profile ozone OP (Ozone profiler)
953	CMA Microwave sounding radiometer, crosstrack scanning MWHS-2 (Microwave humidity sounder-2)
954	CMA Microwave sounding radiometer, crosstrack scanning MWTS-2 (Microwave temperature sounder-2)
955	CMA Cross-nadir scanning IR sounder HIRAS (Hyperspectral infrared atmospheric sounder))
956	CMA Spectrometer SBUS (Solar Backscatter Ultraviolet Sounder)
957	CMA Spectrometer TOU (Total Ozone Unit)
958	GNSS occultation sounder GNOS (Global navigation satellite system occultation sounder)
959	SNSB Limb-scanning sounder SMR (Sub-millimetre radiometer)
960	NASA Total and profile ozone OMPS-limb (Ozone Mapping and Profiler Suite)
961	CMA Visible/NIR/TIR imager, E-W continuous, S-N stepping scanning AGRI-1 (Advanced Geosynchronous Radiation Imager-1)
962	CMA Hyperspectral infrared sounding radiometer, step-stare scanning GIIRS-1 (Geosynchronous Interferometric Infrared Sounder-1)
963	CMA High-resolution optical imager LMI (Lightning Mapper Imager)
964	CMA Space Environment SEP (Space Environment Package)
965	CMA GNSS occultation GNOS-2 (GNSS radio occultation sounder-2)
966	CMA Microwave sounding radiometer, cross-track scanning MWTS-3 (Microwave temperature sounder-3)
967	CMA Hyperspectral infrared sounding radiometer, step-stare scanning GIIRS-2 (Geosynchronous Interferometric Infrared Sounder-2)
968	CMA Hyperspectral infrared sounding radiometer, step-stare scanning GIIRS-3 (Geosynchronous Interferometric Infrared Sounder-3)
969	CMA Hyperspectral infrared sounding radiometer, step-stare scanning GIIRS-4 (Geosynchronous Interferometric Infrared Sounder-4)
970	CMA Hyperspectral infrared sounding radiometer, step-stare scanning GIIRS-5 (Geosynchronous Interferometric Infrared Sounder-5)
971	CMA Hyperspectral infrared sounding radiometer, step-stare scanning GIIRS-6 (Geosynchronous Interferometric Infrared Sounder-6)
972	CMA Visible/NIR/TIR imager, E-W continuous, S-N stepping scanning AGRI-2 (Advanced Geosynchronous Radiation Imager-2)
973	CMA Visible/NIR/TIR imager, E-W continuous, S-N stepping scanning AGRI-3 (Advanced Geosynchronous Radiation Imager-3)
974	CMA Visible/NIR/TIR imager, E-W continuous, S-N stepping scanning AGRI-4 (Advanced Geosynchronous Radiation Imager-4)
975	CMA Visible/NIR/TIR imager, E-W continuous, S-N stepping scanning AGRI-5 (Advanced Geosynchronous Radiation Imager-5)
976	CMA Visible/NIR/TIR imager, E-W continuous, S-N stepping scanning AGRI-6 (Advanced Geosynchronous Radiation Imager-6)
977	CMA Visible/NIR/TIR imager, E-W continuous, S-N stepping scanning GHI (Geostationary High-speed Imager)
978-979	Reserved
980	KMA Imager AMI (Advanced Meteorological Imager)
981	KMA Imager MI (Meteorological Imager)
982	KMA Space environment KSEM (Korea Space wEather Monitor)
983	CMA Cross-track scanning, IR Hyperspectral sounder HIRAS-2 (Hyperspectral Infrared Atmospheric Sounder-2)
984	CMA Cross-track scanning, IR Hyperspectral sounder HIRAS-3 (Hyperspectral Infrared Atmospheric Sounder-3)
985	CMA Conical scanning microwave imager MWRI-1 (Microwave radiation imager-1)
986	CMA Conical scanning microwave imager MWRI-2 (Microwave radiation imager-2)
987	CMA Conical scanning microwave imager MWRI-RM (Microwave radiation imager-Rain Mission)
988-989	Reserved
990	NASA Radiometer SMMR (Scanning multichannel microwave radiometer)
991	NASA Radiometer THIR (Temperature-humidity infrared radiometer)
992	NASA Radiometer NEMS (Nimbus-E Microwave Sounder)
993	NASA Radiometer SCAMS (Scanning Microwave Spectrometer)
994	NASA Radiometer ESMR (Electrically Scanning Microwave Radiometer)
995-2046	Reserved
2047	Missing value

0-02-020 - SCLF

Satellite classification

Code figure	Meaning
0	Nimbus
1	VTPR
2	Tiros 1 (Tiros, NOAA-6 to NOAA-13)
3	Tiros 2 (NOAA-14 onwards)
4-9	Reserved
10	EOS
11-19	Reserved
20	GPM-core
21-30	Reserved
31	DMSP
32-60	Reserved
61	EUMETSAT Polar System (EPS)
62	EUMETSAT Polar System (EPS-SG)
63-90	Reserved
91	ERS
92	Sentinel-3
93-120	Reserved
121	ADEOS
122	GCOM
123-240	Reserved
241	GOES
242-250	Reserved
251	TROPICS
252-260	Reserved
261	JASON
262-270	Reserved
271	GMS
272	MTSAT
273	Himawari
274-280	Reserved
281	COMS
282-300	Reserved
301	INSAT
302-330	Reserved
331	METEOSAT Operational Programme (MOP)
332	METEOSAT Transitional Programme (MTP)
333	METEOSAT Second Generation Programme (MSG)
334	METEOSAT Third Generation Programme (MTG)
335-350	Reserved
351	GOMS
352	Meteor-M N2
353-379	Reserved
380	FY-1
381	FY-2
382	FY-3
383	FY-4
384-400	Reserved
401	GPS
402	GLONASS
403	GALILEO
404	BDS (BeiDou navigation satellite system)
405	Quasi-Zenith Satellite System (QZSS)
406-510	Reserved
511	Missing value

0-02-021 - SIDU

Satellite instrument data used in processing

Bit number	Meaning
1	High resolution Infrared sounder (HIRS)
2	Microwave sounding unit (MSU)
3	Stratospheric sounding unit (SSU)
4	AMI (Advanced microwave instrument) Wind mode
5	AMI (Advanced microwave instrument) Wave mode
6	AMI (Advanced microwave instrument) Image mode
7	RADAR altimeter
8	ATSR (along track scanning radiometer)
All 9	Missing value

0-02-022 - SDPT

Satellite data-processing technique used

Bit number	Meaning
1	Processing technique not defined
2	Automated statistical regression
3	Clear path
4	Partly cloudy path
5	Cloudy path
6-7	Reserved
All 8	Missing value

0-02-023 - SWCM

Satellite-derived wind computation method

Code figure	Meaning
0	Reserved
1	Wind derived from cloud motion observed in the infrared channel
2	Wind derived from cloud motion observed in the visible channel
3	Wind derived from motion observed in the water vapour channel
4	Wind derived from motion observed in a combination of spectral channels
5	Wind derived from motion observed in the water vapour channel in clear air
6	Wind derived from motion observed in the ozone channel
7	Wind derived from motion observed in water vapour channel (cloud or clear air not specified)
8-12	Reserved
13	Root-mean-square
14	Reserved
15	Missing value

0-02-024 - IMHC

Integrated mean humidity computational method

Code figure	Meaning
0	Reserved
1	Table with full range of humidity variation in layer
2	Regression technique on 2 humidity values in layer
3-14	Reserved
15	Missing value

0-02-025 - SCUC

Satellite channel(s) used in computation

Bit number	Meaning
1	Reserved
2	HIRS (Layer precipitable water for the layers: surface to 700 hPa, 700 to 500 hPa and 500 to 300 hPa)
3	MSU (Layer precipitable water for the layers: surface to 700 hPa, 700 to 500 hPa and 500 to 300 hPa)
4-5	Reserved
6	HIRS (Tropopause temperature and pressure)
7	MSU (Tropopause temperature and pressure)
8-9	Reserved
10	HIRS (1, 2, 3, 8, 9, 16, 17) (Total ozone)
11	HIRS (1, 2, 3, 9, 17) (Total ozone)
12	MSU (Total ozone)
13-14	Reserved
15	HIRS (Mean temperature for the layers: surface to 850 hPa, 850 to 700 hPa, 700 to 500 hPa, 500 to 400 hPa, 400 to 300 hPa, 300 to 200 hPa and 200 to 100 hPa)
16	HIRS (1, 2, 3, 4) (Mean temperature for the layers: surface to 850 hPa, 850 to 700 hPa, 700 to 500 hPa, 500 to 400 hPa, 400 to 300 hPa, 300 to 200 hPa and 200 to 100 hPa)
17	MSU (Mean temperature for the layers: surface to 850 hPa, 850 to 700 hPa, 700 to 500 hPa, 500 to 400 hPa, 400 to 300 hPa, 300 to 200 hPa and 200 to 100 hPa)
18	SKINTK (ocean only) (Mean temperature for the layers: surface to 850 hPa, 850 to 700 hPa, 700 to 500 hPa, 500 to 400 hPa, 400 to 300 hPa, 300 to 200 hPa and 200 to 100 hPa)
19-20	Reserved
21	HIRS (1, 2, 3, 4) (Channel combinations used to obtain the mean temperatures for the layers 100 to 70 hPa, 70 to 50 hPa, 50 to 30 hPa, 30 to 10 hPa, 10 to 5 hPa, 5 to 2 hPa, 2 to 1 hPa and 1 to 0.4 hPa)
22	SSU (Channel combinations used to obtain the mean temperatures for the layers 100 to 70 hPa, 70 to 50 hPa, 50 to 30 hPa, 30 to 10 hPa, 10 to 5 hPa, 5 to 2 hPa, 2 to 1 hPa and 1 to 0.4 hPa)
23	MSU (3, 4) (Channel combinations used to obtain the mean temperatures for the layers 100 to 70 hPa, 70 to 50 hPa, 50 to 30 hPa, 30 to 10 hPa, 10 to 5 hPa, 5 to 2 hPa, 2 to 1 hPa and 1 to 0.4 hPa)
24	Reserved
All 25	Missing value

0-02-030 - MCMS

Method of current measurement

Code figure	Meaning
0	Reserved
1	ADCP (Acoustic Doppler Current Profiler)
2	GEK (Geomagnetic ElectroKinetograph)
3	Ship's set and drift determined by fixes 3-6 hours apart
4	Ship's set and drift determined by fixes more than 6 hours but less than 12 hours apart
5	Drift of buoy
6	ADCP (Acoustic Doppler Current Profiler)
7	Missing value

0-02-031 - DTCC

Duration and time of current measurement

Code figure	Meaning
0	Reserved
1	Instantaneous (between one hour before and time of observation)
2	Averaged over 3 minutes or less (between one hour before and time of observation)
3	Averaged over more than 3 minutes, but 6 at the most (between one hour before and time of observation)
4	Averaged over more than 6 minutes, but 12 at the most (between one hour before and time of observation)
5	Instantaneous (between two hours before and one hour before time of observation)
6	Averaged over 3 minutes or less (between two hours before and one hour before time of observation)
7	Averaged over more than 3 minutes, but 6 at the most (between two hours before and one hour before time of observation)
8	Averaged over more than 6 minutes, but 12 at the most (between two hours before and one hour before time of observation)
9	Vector or Doppler current profiling method not used
10	Reserved
11	1 hour or less
12	More than 1 hour but 2 at the most
13	More than 2 hours but 4 at the most
14	More than 4 hours but 8 at the most
15	More than 8 hours but 12 at the most
16	More than 12 hours but 18 at the most
17	More than 18 hours but 24 at the most
18	Reserved
19	Drift method not used
20-30	Reserved
31	Missing value

0-02-032 - IDGT

Indicator for digitization

Code figure	Meaning
0	Values at selected depths (data points fixed by the instrument or selected by any other method)
1	Values at selected depths (data points taken from traces at significant depths)
2	Reserved
3	Missing value

0-02-033 - MSDM

Method of salinity/depth measurement

Code figure	Meaning
0	No salinity measured
1	In situ sensor, accuracy better than 0.02 ‰
2	In situ sensor, accuracy less than 0.02 ‰
3	Sample analysis
4-6	Reserved
7	Missing value

0-02-034 - DROT

Drogue type

Code figure	Meaning
0	Unspecified drogue
1	Holey sock
2	TRISTAR
3	Window shade
4	Parachute
5	Non-Lagrangian sea anchor
6-30	Reserved
31	Missing value

0-02-036 - BUYTS

Buoy type

Code figure	Meaning
0	Drifting buoy
1	Fixed buoy
2	Sub-surface float (moving)
3	Missing value

0-02-037 - MOTO

Method of tidal observation

Code figure	Meaning
0	Reserved
1	Manual reading from vertical tide staff
2	Manual reading from single automatic recorder at station
3	Manual reading from multiple automatic recorders at station
4	Automatic reading from single automatic recorder at station without level reference check.
5	Automatic reading from a single automatic recorder at station with level reference check, or from multiple automatic recorders.
6	Reserved
7	Missing value

0-02-038 - MSST

Method of water temperature and/or salinity measurement

Code figure	Meaning
0	Ship intake
1	Bucket
2	Hull contact sensor
3	Reversing Thermometer
4	STD/CTD sensor
5	Mechanical BT
6	Expendable BT
7	Digital BT
8	Thermistor chain
9	Infra-red scanner
10	Micro-wave scanner
11	Infrared radiometer
12	In line thermosalinograph
13	Towed body
14	Other
15	Missing value

0-02-039 - MWBT

Method of wet-bulb temperature measurement

Code figure	Meaning
0	Measured wet-bulb temperature
1	Iced bulb measured wet-bulb temperature
2	Computed wet-bulb temperature
3	Iced bulb computed wet-bulb temperature
4-6	Reserved
7	Missing value

0-02-040 - MRMV

Method of removing velocity and motion of platform from current

Code figure	Meaning
0	Ship's motion removed by averaging; Ship's velocity removed by bottom tracking
1	Ship's motion removed by motion compensation; Ship's velocity removed by bottom tracking
2	Ship's motion not removed; Ship's velocity removed by bottom tracking
3	Ship's motion removed by averaging; Ship's velocity removed by navigation
4	Ship's motion removed by motion compensation; Ship's velocity removed by navigation
5	Ship's motion not removed; Ship's velocity removed by navigation
6	Doppler current profiling method not used
7-14	Reserved
15	Missing value

0-02-041 - MESF

Method for estimating reports related to synoptic features

Code figure	Meaning
0	Information based on manual analysis
1	Information based on computer analysis
2	Information based on data assimilation
3	Information based on computer analysis or data assimilation manually modified
4-9	Reserved
10	Information based on the numerical weather prediction
11-62	Reserved
63	Missing value

0-02-042 - ISCS

Indicator for sea-surface current speed

Code figure	Meaning
0	Value originally reported in m/s
1	Value originally reported in knots
2	No sea current data available
3	Missing value

0-02-044 - IMCW

Indicator for method of calculating spectral wave data

Code figure	Meaning
0	Reserved
1	Longuet-Higgins (1964)
2	Longuet-Higgins (F3 method)
3	Maximum likelihood method
4	Maximum entropy method
5-14	Reserved
15	Missing value

0-02-045 - ITOP

Indicator for type of platform

Code figure	Meaning
0	Sea station
1	Automatic data buoy
2	Aircraft
3	Satellite
4-14	Reserved
15	Missing value

0-02-046 - WMIN

Wave measurement instrumentation

Code figure	Meaning
0	Reserved
1	Heave sensor
2	Slope sensor
3-14	Reserved
15	Missing value

0-02-047 - DOTT

Deep-ocean tsunameter type

Code figure	Meaning
0	Reserved
1	DART II (PMEL)
2	DART ETD
3	SAIC Tsunami Buoy (STB)
4	GFZ - Potsdam
5	INCOIS (India)
6	InaBuoy (Indonesia)
7	Envirtech
8-126	Reserved
127	Missing value

0-02-048 - SSIN

Satellite sensor indicator

Code figure	Meaning
0	HIRS
1	MSU
2	SSU
3	AMSU-A
4	AMSU-B
5	AVHRR
6	SSMI
7	NSCAT
8	SEAWINDS
9	POSEIDON altimeter
10	JMR (JASON Microwave Radiometer)
11	MHS
12	ASCAT
13	OSCAT2
14	Reserved
15	Missing value

0-02-049 - GSDP

Geostationary satellite data-processing technique used

Bit number	Meaning
1	Processing technique not defined
2	Simultaneous physical retrieval
3	Clear sounding
4	Cloudy sounding
5-7	Reserved
All 8	Missing value

0-02-050 - GSCU

Geostationary sounder satellite channels used

Bit number	Meaning
1	Channel 1 (Central wavelength 14.71 um)
2	Channel 2 (Central wavelength 14.37 um)
3	Channel 3 (Central wavelength 14.06 um)
4	Channel 4 (Central wavelength 13.64 um)
5	Channel 5 (Central wavelength 13.37 um)
6	Channel 6 (Central wavelength 12.66 um)
7	Channel 7 (Central wavelength 12.02 um)
8	Channel 8 (Central wavelength 11.03 um)
9	Channel 9 (Central wavelength 9.71 um)
10	Channel 10 (Central wavelength 7.43 um)
11	Channel 11 (Central wavelength 7.02 um)
12	Channel 12 (Central wavelength 6.51 um)
13	Channel 13 (Central wavelength 4.57 um)
14	Channel 14 (Central wavelength 4.52 um)
15	Channel 15 (Central wavelength 4.45 um)
16	Channel 16 (Central wavelength 4.13 um)
17	Channel 17 (Central wavelength 3.98 um)
18	Channel 18 (Central wavelength 3.74 um)
19	Channel 19 (Central wavelength 0.969 um)
All 20	Missing value

0-02-051 - IOET

Indicator to specify observing method for extreme temperatures

Code figure	Meaning
0	Reserved
1	Maximum/minimum temperatures
2	Automated instruments
3	Thermograph
4-14	Reserved
15	Missing value

0-02-052 - GICU

Geostationary imager satellite channels used

Bit number	Meaning
1	Channel 1 (Central wavelength 0.55-0.75 um)
2	Channel 2 (Central wavelength 3.9 um)
3	Channel 3 (Central wavelength 6.7 um)
4	Channel 4 (Central wavelength 10.7 um)
5	Channel 5 (Central wavelength 12.0 um)
All 6	Missing value

0-02-053 - GBTCST

GOES-I/M brightness temperature characteristics

Code figure	Meaning
0	Observed brightness temperature
1	Brightness temperature with bias correction applied
2	Brightness temperature calculated from first guess
3	Brightness temperature calculated from sounding
4-14	Reserved
15	Missing value

0-02-054 - GSPCST

GOES-I/M soundings parameter characteristics

Code figure	Meaning
0	Parameter derived using observed sounder brightness temperatures
1	Parameter derived using observed imager brightness temperatures
2	Parameter derived using first guess information
3	Parameter derived using NMC analysis information
4	Parameter derived using radiosonde information
5-14	Reserved
15	Missing value

0-02-055 - GSSP

Geostationary soundings statistical parameters

Code figure	Meaning
0	Statistics generated comparing retrieval versus radiosonde
1	Statistics generated comparing retrieval versus first guess
2	Statistics generated comparing radiosonde versus first guess
3	Statistics generated comparing observed versus retrieval
4	Statistics generated comparing observed versus first guess
5	Statistics generated comparing radiosonde versus imager
6	Statistics generated comparing radiosonde versus sounder
7	Statistics generated for radiosonde
8	Statistics generated for first guess
9-14	Reserved
15	Missing value

0-02-056 - GSAS

Geostationary soundings accuracy statistics

Code figure	Meaning
0	Sums of differences
1	Sums of squared differences
2	Sample size
3	Minimum difference
4	Maximum difference
5-14	Reserved
15	Missing value

0-02-057 - OFGI

Origin of first-guess information for GOES-I/M soundings

Code figure	Meaning
0	Nested Grid Model (NGM)
1	Aviation Model (AVN)
2	Medium Range Forecast (MRF) Model
3	Global Data Assimilation System (GDAS) Forecast Model
4	Prior soundings (within 3 hours of current time)
5	Climatology
6-14	Reserved
15	Missing value

0-02-058 - VTGG

Valid times of first-guess information for GOES-I/M soundings

Code figure	Meaning
0	12 hour and 18 hour
1	18 hour and 24 hour
2	6 hour and 12 hour
3	Greater than 24 hours
4-14	Reserved
15	Missing value

0-02-059 - OANI

Origin of analysis information for GOES-I/M soundings

Code figure	Meaning
0	NCEP Nested Grid Model (NGM) Analysis
1	NCEP Aviation Model (AVN) Analysis
2	NCEP Medium Range Forecast (MRF) Model Analysis
3	NCEP Global Data Assimilation System (GDAS) Forecast Model Analysis
4-14	Reserved
15	Missing value

0-02-060 - OSFI

Origin of surface information for GOES-I/M soundings

Code figure	Meaning
0	Current surface hourly reports
1	Current ship reports
2	Current buoy reports
3	One hour old surface hourly reports
4	One hour old ship reports
5	One hour old buoy reports
6-14	Reserved
15	Missing value

0-02-061 - ACNS

Aircraft navigational system

Code figure	Meaning
0	Inertial navigation system
1	OMEGA
2-6	Reserved
7	Missing value

0-02-062 - TADR

Type of aircraft data relay system

Code figure	Meaning
0	ASDAR
1	ASDAR (ACARS also available but not operative)
2	ASDAR (ACARS also available and operative)
3	ACARS
4	ACARS (ASDAR also available but not operative)
5	ACARS (ASDAR also available and operative)
6-14	Reserved
15	Missing value

0-02-064 - ROLQ

Aircraft roll angle quality

Code figure	Meaning
0	Good
1	Bad
2	Reserved
3	Missing value

0-02-066 - RGRSY

Radiosonde ground receiving system

Code figure	Meaning
0	InterMet IMS 2000
1	InterMet IMS 1500C
2	ShangHai GTC1
3	NanJing GTC2
4	NanJing GFE(L)1
5	MARL-A radar
6	VEKTOR-M radar
7-61	Reserved
62	Other
63	Missing value

0-02-070 - OSLL

Original specification of latitude/longitude

Code figure	Meaning
0	Actual location in seconds
1	Actual location in minutes
2	Actual location in degrees
3	Actual location in decidegrees
4	Actual location in centidegrees
5	Referenced to checkpoint in seconds
6	Referenced to checkpoint in minutes
7	Referenced to checkpoint in degrees
8	Referenced to checkpoint in decidegrees
9	Referenced to checkpoint in centidegrees
10	Actual location in tenths of a minute
11	Referenced to checkpoint in tenths of a minute
12-14	Reserved
15	Missing value

0-02-080 - BMFGR

Balloon manufacturer

Code figure	Meaning
0	Kaysam
1	Totex
2	KKS
3	Guangzhou Shuangyi (China)
4	ChemChina Zhuzhou (China)
5-61	Reserved
62	Other
63	Missing value

0-02-081 - BTYPE

Type of balloon

Code figure	Meaning
0	GP26
1	GP28
2	GP30
3	HM26
4	HM28
5	HM30
6	SV16
7	Totex TA type balloons
8	Totex TX type balloons
9-29	Reserved
30	Other
31	Missing value

0-02-083 - BSHEL

Type of balloon shelter

Code figure	Meaning
0	High bay
1	Low bay
2	Balloon Inflation Launch System (BILS)
3	Roof-top BILS
4	Automated unmanned sounding system
5-13	Reserved
14	Other
15	Missing value

0-02-084 - BGTYP

Type of gas used in balloon

Code figure	Meaning
0	Hydrogen
1	Helium
2	Natural gas
3-13	Reserved
14	Other
15	Missing value

0-02-092 - OPCM

Ozone profile computation method

Code figure	Meaning
0	UV channel based retrieval
1	Visible channel based retrieval
2	Combined UV based retrieval and visible based retrieval
3-6	Reserved
7	Missing value

0-02-095 - PSENS

Type of pressure sensor

Code figure	Meaning
0	Capacitance aneroid
1	Derived from GPS
2	Resistive strain gauge
3	Silicon capacitor
4	Derived from radar height
5-29	Reserved
30	Other
31	Missing value

0-02-096 - TSENS

Type of temperature sensor

Code figure	Meaning
0	Rod thermistor
1	Bead thermistor
2	Capacitance bead
3	Capacitance wire
4	Resistive sensor
5	Chip thermistor
6	Mercury
7	Alcohol/glycol
8-29	Reserved
30	Other
31	Missing value

0-02-097 - RHSENS

Type of humidity sensor

Code figure	Meaning
0	VIZ Mark II Carbon Hygristor
1	VIZ B2 Hygristor
2	Vaisala A-Humicap
3	Vaisala H-Humicap
4	Capacitance sensor
5	Vaisala RS90
6	Sippican Mark IIA Carbon Hygristor
7	Twin alternatively-heated humicap capacitance sensor
8	Humicap capacitance sensor with active de-icing method
9	Carbon hygristor
10	Psychrometer
11	Capacitive (polymer)
12	Capacitive (ceramic, including metal oxide)
13	Resistive (generic)
14	Resistive (salt polymer)
15	Resistive (conductive polymer)
16	Thermal conductivity
17	Gravimetric
18	Paper-metal coil
19	Ordinary human hair
20	Rolled hair (torsion)
21	Goldbeater's skin
22	Chilled mirror hygrometer
23	Dew cell
24	Optical absorption sensor
25-29	Reserved
30	Other
31	Missing value

0-02-099 - POLA

Polarization

Code figure	Meaning
0	HH polarisation
1	VV polarisation
2	HV polarisation real valued component
3	HV polarisation imaginary valued component
4-6	Reserved
7	Missing value

0-02-101 - ANTYP

Type of antenna

Code figure	Meaning
0	Centre front fed paraboloid
1	Offset front fed paraboloid
2	Centre Cassegrain paraboloid
3	Offset Cassegrain paraboloid
4	Planar array
5	Coaxial collinear array
6	Yagi elements array
7	Microstrip
8-13	Reserved
14	Other
15	Missing value

0-02-103 - RADO

Radome

Bit number	Meaning
1	Radar antenna is protected by a radome
All 2	Missing value

0-02-104 - ANPO

Antenna polarization

Code figure	Meaning
0	Horizontal polarization
1	Vertical polarization
2	Right circular polarization
3	Left circular polarization
4	Horizontal and vertical polarization
5	Right and left circular polarization
6	Quasi-horizontal polarization
7	Quasi-vertical polarization
8-14	Reserved
15	Missing value

0-02-115 - SFEQP

Type of surface observing equipment

Code figure	Meaning
0	PDB
1	RSOIS
2	ASOS
3	Psychrometer
4	F420
5-29	Reserved
30	Other
31	Missing value

0-02-119 - RA2IO

RA-2 instrument operations

Code figure	Meaning
0	Intermediate Frequency Calibration Mode (IF CAL)
1	Built-In Test Equipment Digital (BITE DGT)
2	Built-In test Equipment Radio Frequency (BITE RF)
3	Preset tracking (PSET TRK)
4	Preset LOOP OUT
5	ACQUISITION
6	TRACKING
7	Missing value

0-02-131 - STCL

Sensitivity time control (STC)

Bit number	Meaning
1	STC operational
All 2	Missing value

0-02-137 - RDPR

Radar dual PRF ratio

Code figure	Meaning
0	Reserved
1	3:2
2	4:3
3	5:4
4-14	Reserved
15	Missing value

0-02-138 - ANRD

Antenna rotation direction

Code figure	Meaning
0	Reserved
1	Clockwise rotation
2	Counterclockwise rotation
3	Missing value

0-02-139 - SIIC

SIRAL instrument configuration

Code figure	Meaning
0	SIRAL nominal
1	SIRAL redundant
2	Reserved
3	Missing value

0-02-143 - OITP

Ozone instrument type

Code figure	Meaning
0	Reserved
1	Brewer spectrophotometer
2	Caver Teichert
3	Dobson
4	Dobson (Japan)
5	Ehmet
6	Fecker telescope
7	Hoelper
8	Jodmeter
9	Filter ozonometer M-83
10	Mast
11	Oxford
12	Paetzold
13	Regener
14	Reserved
15	Vassy filter ozonometer
16	Carbon iodide
17	Surface ozone bubler
18	Filter ozonometer M-124
19	ECC sonde
20-126	Reserved
127	Missing value

0-02-144 - LSTB

Light source type for Brewer spectrophotometer

Code figure	Meaning
0	Direct Sun
1	Direct Sun, attenuator #1
2	Direct Sun, attenuator #2
3	Focused Moon
4	Focused Sun
5	Focused Sun corrected with adjacent sky measurements
6	Zenith Sky
7-14	Reserved
15	Missing value

0-02-145 - WSDI

Wavelength setting for Dobson instruments

Code figure	Meaning
0	Wavelengths AD ordinary setting
1	Wavelengths BD ordinary setting
2	Wavelengths CD ordinary setting
3	Wavelengths CC ordinary setting
4	Wavelengths AD focussed image
5	Wavelengths BD focussed image
6	Wavelengths CD focussed image
7	Wavelengths CC focussed image
8-14	Reserved
15	Missing value

0-02-146 - SCDI

Source conditions for Dobson instruments

Code figure	Meaning
0	On direct sun
1	On direct moon
2	On blue zenith sky
3	On zenith cloud (uniform stratified layer of small opacity)
4	On zenith cloud (uniform or moderately variable layer of medium opacity)
5	On zenith cloud (uniform or moderately variable layer of large opacity)
6	On zenith cloud (highly variable opacity, with or without precipitation)
7	On zenith cloud (fog)
8	On zenith haze
9	On direct sun through thin cloud, fog or haze
10-14	Reserved
15	Missing value

0-02-147 - MTCC

Method of transmission to collection centre

Code figure	Meaning
0	Reserved
1	Direct leased circuit
2	Dialed up connection
3	Internet ISP
4	DCP via satellite (MTSAT, METEOSAT, etc.)
5	VSAT
6	GAN, BGAN
7	Thiss terminal
8	Iridium satellites
9	Mobile telephony
10-62	Reserved
63	Missing value

0-02-148 - DCLS

Data collection and/or location system

Code figure	Meaning
0	Reserved
1	Argos
2	GPS
3	GOES DCP
4	METEOSAT DCP
5	ORBCOMM
6	INMARSAT
7	Iridium
8	Iridium and GPS
9	Argos-3
10	Argos-4
11-30	Reserved
31	Missing value

0-02-149 - BUYT

Type of data buoy

Code figure	Meaning
0	Unspecified drifting buoy
1	Standard Lagrangian drifter (Global Drifter Programme)
2	Standard FGGE type drifting buoy (non-Lagrangian meteorological drifting buoy)
3	Wind measuring FGGE type drifting buoy (non-Lagrangian meteorological drifting buoy)
4	Ice drifter
5	SVPG Standard Lagrangian drifter with GPS
6	SVP-HR Drifter with high resolution temperature or thermistor string
7	Reserved
8	Unspecified sub-surface float
9	SOFAR
10	ALACE
11	MARVOR
12	RAFOS
13	PROVOR
14	SOLO
15	APEX
16	Unspecified moored buoy
17	Nomad
18	3-metre discus
19	10-12-metre discus
20	ODAS 30 series
21	ATLAS (e.g. TAO area)
22	TRITON buoy
23	FLEX Mooring (e.g. TIP Area)
24	Omnidirectional waverider
25	Directional waverider
26	Sub-surface ARGO float
27	PALACE
28	NEMO
29	NINJA
30	Ice Buoy/Float (POPS or ITP)
31-33	Reserved
34	Mooring Oceanographic
35	Mooring Meteorological
36	Mooring Multidisciplinary (OceanSITES)
37	Mooring Tide Gauge or Tsunami buoy
38	Ice beacon
39	Ice mass balance buoy
40-62	Reserved
63	Missing value

0-02-150 - INCN

TOVS/ATOVS/AVHRR instrumentation channel number

Code figure	Meaning
0	Reserved
1	HIRS 1
2	HIRS 2
3	HIRS 3
4	HIRS 4
5	HIRS 5
6	HIRS 6
7	HIRS 7
8	HIRS 8
9	HIRS 9
10	HIRS 10
11	HIRS 11
12	HIRS 12
13	HIRS 13
14	HIRS 14
15	HIRS 15
16	HIRS 16
17	HIRS 17
18	HIRS 18
19	HIRS 19
20	HIRS 20
21	MSU 1
22	MSU 2
23	MSU 3
24	MSU 4
25	SSU 1
26	SSU 2
27	SSU 3
28	AMSU A 1
29	AMSU A 2
30	AMSU A 3
31	AMSU A 4
32	AMSU A 5
33	AMSU A 6
34	AMSU A 7
35	AMSU A 8
36	AMSU A 9
37	AMSU A 10
38	AMSU A 11
39	AMSU A 12
40	AMSU A 13
41	AMSU A 14
42	AMSU A 15
43	AMSU B 1 / MHS 1
44	AMSU B 2 / MHS 2
45	AMSU B 3 / MHS 3
46	AMSU B 4 / MHS 4
47	AMSU B 5 / MHS 5
48	AVHRR 1
49	AVHRR 2
50	AVHRR 3a
51	AVHRR 3b
52	AVHRR 4
53	AVHRR 5
54-62	Reserved
63	Missing value

0-02-151 - RAID

Radiometer identifier

Code figure	Meaning
0	HIRS
1	MSU
2	SSU
3	AMSU A1 1
4	AMSU A1 2
5	AMSU A2
6	AMSU B
7	AVHRR
8	Reserved
9	MHS
10-2046	Reserved
2047	Missing value

0-02-152 - SIDP

Satellite instrument used in data processing

Bit number	Meaning
1	High-resolution infrared sounder (HIRS)
2	Microwave sounding unit (MSU)
3	Stratospheric sounding unit (SSU)
4	AMI wind mode
5	AMI wave mode
6	AMI image mode
7	RADAR altimeter
8	ATSR
9	Geostationary Imager
10	Geostationary Sounder
11	Geostationary Earth radiation (GERB)
12	Multi-channel scanning radiometer
13	Polar orbiting imager
14-30	Reserved
All 31	Missing value

0-02-158 - RA2M

RA-2 instrument

Bit number	Meaning
1	Mismatch in RED VEC HPA
2	Mismatch in RED VEC RFSS
3	PTR calibration band 320 MHz (Ku)
4	PTR calibration band 80 MHz (Ku)
5	PTR calibration band 20 MHz (Ku)
6	PTR calibration band 160 MHz (S)
7	Ku flight calibration parameters available
8	S flight calibration parameters available
All 9	Missing value

0-02-159 - MWRI

MWR instrument

Bit number	Meaning
1	Temperature inconsistency
2	Data is missing
3	Redundancy channel
4	Power bus protection
5	Overvoltage/Overload protection
6-7	Reserved
All 8	Missing value

0-02-160 - WLOR

Wavelength of the radar

Code figure	Meaning
0	Reserved
1	10 to less than 20 mm
2	Reserved
3	20 to less than 40 mm
4	Reserved
5	40 to less than 60 mm
6	Reserved
7	60 to less than 90 mm
8	90 to less than 110 mm
9	110 mm and greater
10-14	Reserved
15	Missing value

0-02-161 - WDPF

Wind processing method

Bit number	Meaning
1-10	Reserved
11	Wind height calculated from median cloud-top pressure of target
12	Target is cloudy
13	Low-level inversion
14	CCC method
15	Nested tracking
All 16	Missing value

0-02-162 - EHAM

Extended height assignment method

Code figure	Meaning
0	Auto editor
1	IRW height assignment
2	WV height assignment
3	H₂O intercept height assignment
4	CO₂ slicing height assignment
5	Low pixel max gradient
6	Higher pixel max gradient
7	Primary height assignment
8	Layer thickness assignment
9	Cumulative contribution function - 10 percent height
10	Cumulative contribution function - 50 percent height
11	Cumulative contribution function - 90 percent height
12	Cumulative contribution function - height of maximum gradient
13	IR/two WV channel rationing method
14	Composite height assignment
15	Optimal estimation
16	Inversion correction
17	Geometric height assignment
18-62	Reserved
63	Missing value

0-02-163 - HAMD

Height assignment method

Code figure	Meaning
0	Auto editor
1	IRW height assignment
2	WV height assignment
3	H₂O intercept height assignment
4	CO₂ slicing height assignment
5	Low pixel max gradient
6	Higher pixel max gradient
7	Primary height assignment
8	Layer thickness assignment
9	Cumulative contribution function - 10 percent height
10	Cumulative contribution function - 50 percent height
11	Cumulative contribution function - 90 percent height
12	Cumulative contribution function - height of maximum gradient
13	IR / two WV channel ratioing method
14	Composite height assignment
15	Missing value

0-02-164 - TCMD

Tracer correlation method

Code figure	Meaning
0	LP - Norms least square minimum
1	EN - Euclidean norm with radiance correlation
2	CC - Cross correlation
3	Stereo matching
4-6	Reserved
7	Missing value

0-02-165 - RDTF

Radiance type flags

Bit number	Meaning
1	Clear path
2	Partly cloudy path
3	Cloudy path
4	Apodized
5	Unapodized
6	Reconstructed
7	Cloud cleared
8-14	Reserved
All 15	Missing value

0-02-166 - RDTP

Radiance type

Code figure	Meaning
0	Type not defined
1	Automated statistical regression
2	Clear path
3	Partly cloudy path
4	Cloudy path
5-14	Reserved
15	Missing value

0-02-167 - RDCM

Radiance computational method

Code figure	Meaning
0	Method not defined
1	1b raw radiance
2	Processed radiance
3-14	Reserved
15	Missing value

0-02-169 - ANTP

Anemometer type

Code figure	Meaning
0	Cup rotor
1	Propeller rotor
2	Wind Observation Through Ambient Noise (WOTAN)
3	Sonic
4-14	Reserved
15	Missing value

0-02-170 - ACHS

Aircraft humidity sensors

Code figure	Meaning
0	SpectraSensors WVSS-II, Version 1
1	SpectraSensors WVSS-II, Version 2
2	SpectraSensors WVSS-II, Version 3
3-61	Reserved
62	Other
63	Missing value

0-02-172 - PTAG

Product type for retrieved atmospheric gases

Code figure	Meaning
0	Reserved
1	Retrieval from a nadir sounding
2	Retrieval from a limb sounding
3	Retrieval from an occultation sounding
4-254	Reserved
255	Missing value

0-02-175 - MOPM

Method of precipitation measurement

Code figure	Meaning
0	Manual measurement
1	Tipping bucket method
2	Weighing method
3	Optical method
4	Pressure method
5	Float method
6	Drop counter method
7-13	Reserved
14	Others
15	Missing value

0-02-176 - MSGM

Method of state of ground measurement

Code figure	Meaning
0	Manual observation
1	Video camera method
2	Infra-red method
3	Laser method
4-13	Reserved
14	Others
15	Missing value

0-02-177 - MODM

Method of snow depth measurement

Code figure	Meaning
0	Manual observation
1	Ultrasonic method
2	Video camera method
3	Laser method
4-13	Reserved
14	Others
15	Missing value

0-02-178 - MLMP

Method of liquid content measurement of precipitation

Code figure	Meaning
0	Manual observation
1	Optical method
2	Capacitive method
3-13	Reserved
14	Others
15	Missing value

0-02-179 - TSCA

Type of sky condition algorithm

Code figure	Meaning
0	Manual observation
1	VAISALA algorithm
2	ASOS (FAA) algorithm
3	AWOS (Canada) algorithm
4-13	Reserved
14	Others
15	Missing value

0-02-180 - MPRW

Main present weather detecting system

Code figure	Meaning
0	Manual observation
1	Optical scatter system combined with precipitation occurrence sensing system
2	Forward and/or back-scatter system of visible light
3	Forward and/or back-scatter system of infrared light
4	Infrared light emitting diode (IRED) system
5	Doppler radar system
6-13	Reserved
14	Others
15	Missing value

0-02-181 - SPRW

Supplementary present weather sensor

Bit number	Meaning
1	Rain detector
2	Freezing rain sensor
3	Ice detection sensor
4	Hail and ice pellet sensor
5-19	Reserved
20	Others
All 21	Missing value

0-02-182 - VZMS

Visibility measurement system

Code figure	Meaning
0	Manual measurement
1	Transmissometer system (base > 25 m)
2	Transmissometer system (base < 25 m)
3	Forward scatter system
4	Back scatter system
5-13	Reserved
14	Others
15	Missing value

0-02-183 - CLDS

Cloud detection system

Code figure	Meaning
0	Manual observation
1	Ceilometer system
2	Infrared camera system
3	Microwave visual camera system
4	Sky imager system
5	Video time lapsed camera system
6	Micro pulse lidar (MPL) system
7-13	Reserved
14	Others
15	Missing value

0-02-184 - TLDS

Type of lightning detection sensor

Code figure	Meaning
0	Manual observation
1	Lightning imaging sensor
2	Electrical storm identification sensor
3	Magnetic finder sensor
4	Lightning strike sensor
5	Flash counter
6	ATDnet VLF waveform correlated sensor
7-13	Reserved
14	Others
15	Missing value

0-02-185 - MEVM

Method of evaporation measurement

Code figure	Meaning
0	Manual measurement
1	Balanced floating method
2	Pressure method
3	Ultrasonic method
4	Hydraulic method
5-13	Reserved
14	Others
15	Missing value

0-02-186 - CDPP

Capability to detect precipitation phenomena

Bit number	Meaning
1	Precipitation-unknown type
2	Liquid precipitation not freezing
3	Liquid freezing precipitation
4	Drizzle
5	Rain
6	Solid precipitation
7	Snow
8	Snow grains
9	Snow pellets
10	Ice pellets
11	Ice crystals
12	Diamond dust
13	Small hail
14	Hail
15	Glaze
16	Rime
17	Soft rime
18	Hard rime
19	Clear ice
20	Wet snow
21	Hoar frost
22	Dew
23	White dew
24	Convective precipitation
25-29	Reserved
All 30	Missing value

0-02-187 - CDWP

Capability to detect other weather phenomena

Bit number	Meaning
1	Dust/sand whirl
2	Squalls
3	Sand storm
4	Dust storm
5	Lightning - cloud to surface
6	Lightning - cloud to cloud
7	Lightning - distant
8	Thunderstorm
9	Funnel Cloud not touching surface
10	Funnel cloud touching surface
11	Spray
12-17	Reserved
All 18	Missing value

0-02-188 - CDOB

Capability to detect obscuration

Bit number	Meaning
1	Fog
2	Ice fog
3	Steam fog
4-6	Reserved
7	Mist
8	Haze
9	Smoke
10	Volcanic ash
11	Dust
12	Sand
13	Snow
14-20	Reserved
All 21	Missing value

0-02-189 - CDLS

Capability to discriminate lightning strikes

Bit number	Meaning
1	Manual observation
2	All lightning strikes without discrimination
3	Lightning strikes cloud to ground only
4	All lightning strikes with discrimination between cloud to ground and cloud to cloud
5-11	Reserved
All 12	Missing value

0-02-191 - GHTC

Geopotential height calculation

Code figure	Meaning
0	Geopotential height calculated from pressure
1	Geopotential height calculated from GPS height
2	Geopotential height calculated from radar height
3-14	Reserved
15	Missing value

0-02-193 - ITSO

Indicator for type of station operation and past/present weather

Code figure	Meaning
0	Manned station operation; past/present weather included
1	Manned station operation; past/present weather omitted (no significant phenomenon to report)
2	Manned station operation; past/present weather omitted (no observation, data not available)
3	Automatic station operation; past/present weather included using code tables 4677 and 4561
4	Automatic station operation; past/present weather omitted (no significant phenomenon to report)
5	Automatic station operation; past/present weather omitted (no observation, data not available)
6	Automatic station operation; past/present weather included using code tables 4680 and 4631
7	Missing value

0-02-194 - AUTO

Automated station type

Code figure	Meaning
0	Either SAO report or METAR/SPECI report, and 'AUTO' found in report
1	METAR/SPECI report with both 'AUTO' and 'A01' found in report
2	METAR/SPECI report with both 'AUTO' and 'A02' found in report
3	METAR/SPECI report with 'A01' found in report, but 'AUTO' not found in report
4	METAR/SPECI report with 'A02' found in report, but 'AUTO' not found in report
5-14	Reserved
15	Missing value

0-02-195 - ITP

PREPBUFR: Instrument type

When the value of
0-55-007 - TYP (PREPBUFR: Report type)

= 151 (MASS Report - NESDIS 1x1 cloud top pressure, temperature and cloud amount)
or
= 156 (MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - clear)
or
= 157 (MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - cloudy)
or
= 158 (MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - clear)
or
= 159 (MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - cloudy)
or
= 164 (MASS Report - NESDIS 1x1 field-of-view radiances water over land - clear)
or
= 165 (MASS Report - NESDIS 1x1 field-of-view radiances water over land - cloudy)
or
= 174 (MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - clear)
or
= 175 (MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - cloudy)

Code figure	Meaning
0-20	Reserved
21	Clear sounding
22	Reserved
23	Cloudy sounding
24-254	Reserved
255	Missing value

When the value of
0-55-007 - TYP (PREPBUFR: Report type)

= 120 (MASS Report - Rawinsonde)
or
= 122 (MASS Report - Class sounding)
or
= 132 (MASS Report - Flight-level reconnaissance and profile dropsonde)
or
= 220 (WIND Report - Rawinsonde)
or
= 221 (WIND Report - PIBAL)
or
= 222 (WIND Report - Class sounding)
or
= 232 (WIND Report - Flight-level reconnaissance and profile dropsonde)

Code figure	Meaning
0	Reserved
1	iMet-1-BB (USA)
2	No radiosonde - passive target (e.g. reflector)
3	No radiosonde - active target (e.g. transponder)
4	No radiosonde - passive temperature-humidity profiler
5	No radiosonde - active temperature-humidity profiler
6	No radiosonde - radio acoustic sounder
7	iMet-1-AB (USA)
8	No radiosonde - reserved
9	No radiosonde - system unknown or not specified
10	VIZ type A pressure-commutated (USA)
11	VIZ type B time-commutated (USA)
12	RS SDC (Space Data Corporation - USA)
13	Astor (no longer made - Australia)
14	VIZ MARK I MICROSONDE (USA)
15	EEC Company type 23 (USA)
16	Elin (Austria)
17	Graw G. (Germany)
18	Graw DFM-06 (Germany)
19	Graw M60 (Germany)
20	Indian Meteorological Service MK3 (India)
21	VIZ/Jin Yang MARK I MICROSONDE (Republic of Korea)
22	Meisei RS2-80 (Japan)
23	Mesural FMO 1950A (France)
24	Mesural FMO 1945A (France)
25	Mesural MH73A (France)
26	Meteolabor Basora (Switzerland)
27	AVK MRZ (Russian Federation)
28	Meteorit MARZ2-1 (Russian Federation)
29	Meteorit MARZ2-2 (Russian Federation)
30	Oki RS2-80 (Japan)
31	VIZ/Valcom type A pressure-commutated (Canada)
32	Shanghai Radio (China)
33	UK Met Office MK3 (UK)
34	Vinohrady (Czech Republic)
35	Vaisala RS18 (Finland)
36	Vaisala RS21 (Finland)
37	Vaisala RS80 (Finland)
38	VIZ LOCATE Loran-C (USA)
39	Sprenger E076 (Germany)
40	Sprenger E084 (Germany)
41	Sprenger E085 (Germany
42	Sprenger E086 (Germany)
43	AIR IS - 4A - 1680 (USA)
44	AIR IS - 4A - 1680 X (USA)
45	RS MSS (USA)
46	Air IS - 4A - 403 (USA)
47	Meisei RS2-91 (Japan)
48	VALCOM (Canada)
49	VIZ MARK II (USA)
50	Graw DFM-90 (Germany)
51	VIZ-B2 (USA)
52	Vaisala RS80-57H
53	AVK-RF95 (Russian Federation)
54	Graw DFM-97 (Germany)
55	Meisei RS-016 (Japan)
56	M2K2 (France)
57	Modem M2K2-DC (France)
58	AVK BAR (Russian Federation)
59	Modem M2K2 R 1680 MHz RDF radiosonde with pressure sensor chip (France)
60	Vaisala RS80/MicroCora (Finland)
61	Vaisala RS80/Loran/Digicora I,II or Marwin (Finland)
62	Vaisala RS80/PCCora (Finland)
63	Vaisala RS80/Star (Finland)
64	Orbital Sciences Corporation, Space Data Division, transponder radiosonde, type 909 11-XX, where XX corresponds to the model of the instrument (USA)
65	VIZ transponder radiosonde, model number 1499–520 (USA)
66	Vaisala RS80/Autosonde (Finland)
67	Vaisala RS80/Digicora III (Finland)
68	AVK RZM-2 (Russian Federation)
69	MARL-A or Vektor-M-RZM-2 (Russian Federation)
70	Vaisala RS92/Star (Finland)
71	Vaisala RS90/Loran/Digicora I,II or Marwin (Finland)
72	Vaisala RS90/PC-Cora (Finland)
73	Vaisala RS90/Autosonde (Finland)
74	Vaisala RS90/Star (Finland)
75	AVK-MRZ-ARMA (Russian Federation)
76	AVK-RF95-ARMA (Russian Federation)
77	GEOLINK GPSonde GL98 (France)
78	Vaisala RS90/Digicora III (Finland)
79	Vaisala RS92/Digicora I,II or Marwin (Finland)
80	Vaisala RS92/Digicora III (Finland)
81	Vaisala RS92/Autosonde (Finland)
82	Sippican MK2 GPS/STAR (USA) with rod thermistor, carbon element and derived pressure
83	Sippican MK2 GPS/W9000 (USA) with rod thermistor, carbon element and derived pressure
84	Sippican MARK II with chip thermistor, carbon element and derived pressure from GPS height
85	Sippican MARK IIA with chip thermistor, carbon element and derived pressure from GPS height
86	Sippican MARK II with chip thermistor, pressure and carbon element
87	Sippican MARK IIA with chip thermistor, pressure and carbon element
88	MARL-A or Vektor-M-MRZ (Russian Federation)
89	MARL-A or Vektor-M-BAR (Russian Federation)
90	Radiosonde not specified or unknown
91	Pressure only radiosonde
92	Pressure only radiosonde plus transponder
93	Pressure only radiosonde plus radar reflector
94	No pressure radiosonde plus transponder
95	No pressure radiosonde plus radar reflector
96	Descending radiosonde
97	BAT-16P (South Africa)
98	BAT-16G (South Africa)
99	BAT-4G (South Africa)
100-109	Reserved
110	Sippican LMS5 w/Chip Thermistor, duct mounted capacitance relative humidity sensor and derived pressure from GPS height
111	Sippican LMS6 w/Chip Thermistor, external boom mounted capacitance relative humidity sensor, and derived pressure from GPS height
112	Jin Yang RSG-20A with derived pressure from GPS height GL-5000P (Republic of Korea)
113	Vaisala RS92/MARWIN MW32 (Finland)
114	Vaisala RS92/DigiCORA MW41 (Finland)
115	PAZA-12M/Radiotheodolite-UL (Ukraine)
116	PAZA-22/AVK-1 (Ukraine)
117	Graw DFM-09 (Germany)
118	Reserved
119	Polus-MRZ-N1 (Russian Federation)
120	Reserved
121	Jin Yang 1524LA LORAN-C/GL5000 (Republic of Korea)
122	Meisei RS-11G GPS radiosonde with thermistor, capacitance relative humidity sensor, and derived pressure from GPS height (Japan)
123	Vaisala RS41/DigiCORA MW41 (Finland)
124	Vaisala RS41/AUTOSONDE (Finland)
125	Vaisala RS41/MARWIN MW32 (Finland)
126	Meteolabor SRS–C34/Argus 37 (Switzerland)
127	Reserved
128	AVK - AK2-02 (Russian Federation)
129	MARL-A or Vektor-M - AK2-02 (Russian Federation)
130	Meisei RS06G (Japan)
131	Taiyuan GTS1-1/GFE(L) (China)
132	Shanghai GTS1/GFE(L) (China)
133	Nanjing GTS1-2/GFE(L) (China)
134	iMet-4 GPS radiosonde (USA)
135	Meisei iMS-100 GPS radiosonde w/thermistor sensor, capacitance relative humidity sensor, and derived pressure from GPS height (Japan)
136-140	Reserved
141	Vaisala RS41 with pressure derived from GPS height/DigiCORA MW41 (Finland)
142	Vaisala RS41 with pressure derived from GPS height/AUTOSONDE (Finland)
143	NanJing Daqiao XGP-3G (China)
144	TianJin HuaYunTianYi GTS(U)1 (China)
145	Beijing Changfeng CF-06 (China)
146	Shanghai Changwang GTS3 (China)
147	Reserved
148	PAZA-22M/MARL-A
149	Reserved
150	Meteolabor SRS-C50/Argus (Switzerland)
151	Reserved
152	Vaisala RS92-NGP/Intermet IMS-2000 (USA)
153	AVK - I-2012 (Russian Federation)
154	Graw DFM-17 (Germany)
155-159	Reserved
160	MARL-A or Vektor-M - I-2012 (Russian Federation)
161	Reserved
162	MARL-A or Vektor-M - MRZ-3MK (Russian Federation)
163	Modem M20 radiosonde w/thermistor sensor, capacitance relative humidity sensor, and derived pressure from GPS height (France)
164	Modem PilotSonde GPS radiosonde (France)
165-172	Reserved
173	MARL-A (Russian Federation) - ASPAN-15 (Kazakhstan)
174-176	Reserved
177	Modem GPSonde M10 (France)
178-181	Reserved
182	Lockheed Martin LMS-6 w/chip thermistor, external boom mounted polymer capacitive relative humidity sensor, capacitive pressure sensor and GPS wind
183	Vaisala RS92-D/Intermet IMS 1500 w/silicon capacitive pressure sensor, capacitive wire temperature sensor, twin thin-film heated polymer capacitive relative humidity sensor and RDF wind
184	iMet-54/iMet-3200/3400 GPS radiosonde with derived pressure from GPS height (South Africa)
185-189	Reserved
190	NCAR research dropsonde NRD94 with GPS and Vaisala RS92-based sensor module (United States)
191	NCAR research dropsonde NRD41 with GPS and Vaisala RS41-based sensor module (United States)
192	Vaisala/NCAR dropsonde RD94 with GPS and Vaisala RS92-based sensor module (Finland/USA)
193	Vaisala/NCAR dropsonde RD41 with GPS and Vaisala RS41-based sensor module (Finland/USA)
194-254	Reserved
255	Missing value

When the value of
0-55-007 - TYP (PREPBUFR: Report type)

= 130 (MASS Report - AIREP or PIREP aircraft)
or
= 131 (MASS Report - AMDAR aircraft)
or
= 134 (MASS Report - TAMDAR aircraft)
or
= 135 (MASS Report - Canadian AMDAR aircraft)
or
= 230 (WIND Report - AIREP or PIREP aircraft)
or
= 231 (WIND Report - AMDAR aircraft)
or
= 234 (WIND Report - TAMDAR aircraft)
or
= 235 (WIND Report - Canadian AMDAR aircraft)

Code figure	Meaning
0-96	Reserved
97	Inertial navigation system
98	OMEGA
99-254	Reserved
255	Missing value

When the value of
0-55-007 - TYP (PREPBUFR: Report type)

= 241 (WIND Report - India infrared and visible cloud drift)
or
= 242 (WIND Report - Japan infrared and visible cloud drift at levels below 850 mb)
or
= 243 (WIND Report - EUMETSAT infrared and visible cloud drift at levels below 850 mb)
or
= 245 (WIND Report - NESDIS infrared cloud drift (long wave))
or
= 246 (WIND Report - NESDIS imager water vapor - cloud top)
or
= 247 (WIND Report - NESDIS imager water vapor - deep layer)
or
= 248 (WIND Report - NESDIS sounder water vapor - cloud top)
or
= 249 (WIND Report - NESDIS sounder water vapor - deep layer)
or
= 250 (WIND Report - Japan imager water vapor, cloud top and deep layer)
or
= 251 (WIND Report - NESDIS visible cloud drift)
or
= 252 (WIND Report - Japan infrared and visible cloud drift at levels above 850 mb)
or
= 253 (WIND Report - EUMETSAT infrared and visible cloud drift at levels above 850 mb)
or
= 254 (WIND Report - EUMETSAT imager water vapor, cloud top and deep layer)
or
= 255 (WIND Report - NESDIS picture triplet cloud drift)
or
= 256 (WIND Report - India imager water vapor)
or
= 257 (WIND Report - MODIS/POES infrared cloud drift)
or
= 258 (WIND Report - MODIS/POES imager water vapor - cloud top)
or
= 259 (WIND Report - MODIS/POES imager water vapor - deep layer)

Code figure	Meaning
0	Reserved
1	IR automated winds (low density)
2	IR manual winds
3	Picture triplet (low density)
4	Water vapor automated (low density)
5	Visible manual
6	Visible automated (low density)
7	Gradient winds
8	Picture pair
9	Reserved
10	AMSU/SSMI microwave winds
11	Scatterometer
12	Altimeter
13	LAWS
14	High-density water vapor sounder, channel 10
15	High-density water vapor sounder, channel 11
16	High-density IR imager automated winds
17	High-density visible imager automated winds
18	High-density water vapor imager
19-254	Reserved
255	Missing value

0-02-197 - GSPC

GOES-I/M soundings parameter characteristics

Bit number	Meaning
1	Parameter derived using observed sounder brightness temperatures
2	Parameter derived using observed imager brightness temperatures
3	Parameter derived using first guess information
4	Parameter derived using NMC/NCEP analysis information
5	Parameter derived using radiosonde information
6-7	Reserved
All 8	Missing value

0-02-198 - GBTC

GOES-I/M brightness temperature characteristics

Bit number	Meaning
1	Observed brightness temperature
2	Brightness temperature with bias correction applied
3	Brightness temperature calculated from first guess
4	Brightness temperature calculated from sounding
5-7	Reserved
All 8	Missing value

0-02-199 - ROLF

FSL aircraft roll angle flag

Code figure	Meaning
0	Roll greater than 5 degrees
1	Roll less than or equal to 5 degrees
2	Not reported
3-6	Reserved
7	Missing value

0-02-200 - AVHC

TOVS AVHRR channel combination

Bit number	Meaning
1	Channel 1 is present
2	Channel 2 is present
3	Channel 3 is present
4	Channel 4 is present
5	Channel 5 is present
All 6	Missing value

0-02-201 - SWTP

NESDIS satellite wind type

Code figure	Meaning
0	Reserved
1	IR automated winds (low density)
2	IR manual winds
3	Picture triplet (low density)
4	Water vapor automated (low density)
5	Visible manual
6	Visible automated (low density)
7	Gradient winds
8	Picture pair
9	Reserved
10	AMSU/SSMI microwave winds
11	Scatterometer
12	Altimeter
13	LAWS
14	High-density water vapor sounder, channel 10
15	High-density water vapor sounder, channel 11
16	High-density IR imager automated winds
17	High-density visible imager automated winds
18	High-density water vapor imager
19-254	Reserved
255	Missing value

0-02-207 - PLTTYP

Platform type for NWS Cooperative Observer sites

Code figure	Meaning
0	Phase II site (regional hub)
1	Phase II site (GOES/HADS)
2	Phase I site (direct connect)
3	Phase I site (GOES/HADS)
4-6	Reserved
7	Missing value

0-02-223 - CMCM

Satellite derived wind computation method

Code figure	Meaning
0	Reserved
1	Wind derived from cloud motion observed in the infrared channel
2	Wind derived from cloud motion observed in the visible channel
3	Wind derived from motion observed in the water vapour channel
4	Wind derived from motion observed in a combination of spectral channels
5-254	Reserved
255	Missing value

0-03-001 - SFSTP

Surface station type

Code figure	Meaning
0	Land station (synoptic network)
1	Shallow water station (fixed to sea/lake floor)
2	Ship
3	Rig/platform
4	Moored buoy
5	Drifting buoy (or drifter)
6	Ice buoy
7	Land station (local network)
8	Land vehicle
9	Autonomous marine vehicle
10	Tag attached to marine animal
11-30	Reserved
31	Missing value

0-03-003 - THHS

Thermometer/hygrometer housing

Code figure	Meaning
0	Screen
1	Sling/Whirling
2	Unscreened
3	Radiation shield
4	Aspirated (e.g. Assmann)
5	Other shelter
6	Handheld
7-14	Reserved
15	Missing value

0-03-004 - TPSCSH

Type of screen/shelter/radiation shield

Code figure	Meaning
0	Stevenson screen
1	Marine Stevenson screen
2	Cylindrical section plate shield
3	Concentric tube
4	Rectangular section shield
5	Square section shield
6	Triangular section shield
7	Open covered lean-to
8	Open covered inverted V roof
9	Integrated (e.g. Chilled Mirror)
10-14	Reserved
15	Missing value

0-03-008 - AVSCSH

Artificially ventilated screen or shield

Code figure	Meaning
0	Natural ventilation in use
1	Artificial ventilation in use; constant flow at time of reading
2	Artificial ventilation in use; variable flow at time of reading
3-6	Reserved
7	Missing value

0-03-010 - MSCM

Method of sea/water current measurement

Code figure	Meaning
0-1	Reserved
2	GEK (Geomagnetic ElectroKinetograph)
3	Ship's set and drift determined by fixes 3-6 hours apart
4	Ship's set and drift determined by fixes more than 6 hours but less than 12 hours apart
5	Drift of buoy
6	ADCP (Acoustic Doppler Current Profiler)
7	ADCP (Acoustic Doppler Current Profiler) bottom tracking mode
8	Electromagnetic sensor
9	Rotor and vane
10	Lowered ADCP
11-14	Reserved
15	Missing value

0-03-011 - MDCL

Method of depth calculation

Code figure	Meaning
0	Depth calculated using fall rate equation
1	Depth calculated from water pressure/equation of state
2	Reserved
3	Missing value

0-03-012 - SDOM

Instrument type/sensor for dissolved oxygen measurement

Code figure	Meaning
0	Anderraa oxygen optode
1	Winkler bottle
2-14	Reserved
15	Missing value

0-03-016 - POSRS

Position of road sensors

Code figure	Meaning
0	Fast lane between the wheel tracks
1	Fast lane between the wheel tracks in the opposite direction
2	Fast lane in the wheel tracks
3	Fast lane in the wheel tracks in the opposite direction
4	Slow lane between the wheel tracks
5	Slow lane between the wheel tracks in the opposite direction
6	Slow lane in the wheel tracks
7	Slow lane in the wheel tracks in the opposite direction
8-14	Reserved
15	Missing value

0-03-017 - TOSTX

Extended type of station

Bit number	Meaning
1	Automatic
2	Manned
3	Event-triggered
4	Longer time period than the standard
5	Reserved
All 6	Missing value

0-03-018 - TPROAD

Type of road

Code figure	Meaning
0	Free track without further information
1	Free track, embankment
2	Free track, flat relative to surroundings
3	Free track, water basin(s) in vicinity
4	Free track, forest
5	Free track, cliff
6	Free track, on hilltop
7	Free track, on hilltop, forest
8	Free track, in valley
9	Free track, in valley, forest
10	Free track, north inclination
11	Free track, north inclination, forest
12	Free track, south inclination
13	Free track, south inclination, forest
14-19	Reserved
20	Bridge without further information
21	Bridge across a valley in an urban area
22	Bridge across a valley with forest/meadows/fields
23	Bridge across street/track
24	Bridge across big river/canal
25	Bridge across river/canal of medium size
26	Bridge across a small stream/loading canal
27-30	Reserved
31	Missing value

0-03-019 - TPCONS

Type of construction

Code figure	Meaning
0	Asphalt
1	Concrete
2	Concrete construction
3	Steel-girder construction
4	Box girder bridge
5	Orthotropic slab
6	Drain asphalt
7-14	Reserved
15	Missing value

0-03-020 - MTHHS

Material for thermometer/hygrometer housing

Code figure	Meaning
0	Wood
1	Metal alloy
2	Plastic/GRP
3	Reed/grass/leaf
4-6	Reserved
7	Missing value

0-03-021 - HYGH

Hygrometer heating

Code figure	Meaning
0	Unheated
1	Heated
2	Not applicable
3	Missing value

0-03-022 - INSTO

Instrument owner

Code figure	Meaning
0	National hydro meteorological/weather service
1	Other
2	Standards institute
3-6	Reserved
7	Missing value

0-03-023 - CLTHS

Configuration of louvers for thermometer/hygrometer screen

Code figure	Meaning
0	Single v section louvers
1	Overlapping louvers
2	Double v section louvers
3	Non-overlapping louvers
4	Vented, non-louvered
5	Not applicable
6	Reserved
7	Missing value

0-03-027 - TPFR

Type of flight rig

Code figure	Meaning
0	Solo (single radiosonde)
1	Block
2	Bar
3	Cross
4	T-rig
5	Double T-rig
6	Complex
7-14	Reserved
15	Missing value

0-03-028 - MSWEM

Method of snow water equivalent measurement

Code figure	Meaning
0	Reserved
1	Multi point manual snow survey
2	Single point manual snow water equivalent measurement
3	Snow pillow or snow scale
4	Passive gamma
5	Cosmic ray attenuation
6	Time domain reflectometry
7-62	Reserved
63	Missing value

0-03-029 - SWATH

Swath

Code figure	Meaning
0	Left hand side
1	Right hand side
2-6	Reserved
7	Missing value

0-03-030 - ATST

Antenna status

Code figure	Meaning
0	Transmitting
1	Receiving
2-6	Reserved
7	Missing value

0-04-059 - TOMV

Times of observation used to compute the reported mean values

Bit number	Meaning
1	00 UTC
2	06 UTC
3	12 UTC
4	18 UTC
5	Other hours
All 6	Missing value

0-04-080 - .AVP....

Averaging period for following value

Code figure	Meaning
0	Spot values
1	Less than 15 minutes
2	From 15 to 45 minutes
3	More than 45 minutes
4-8	Reserved
9	Data not available
10-14	Reserved
15	Missing value

0-04-193 - DAYW

Day of the week

Code figure	Meaning
0	Sunday
1	Monday
2	Tuesday
3	Wednesday
4	Thursday
5	Friday
6	Saturday
7	Missing value

0-04-216 - TCOR

PREPBUFR: Correction indicator for reported observation time

Code figure	Meaning
0	Observation time is reported time, no correction
1	Observation time corrected based on reported launch time
2	Observation time corrected even though launch time is missing
3-6	Reserved
7	Missing value

0-05-069 - RCVCH

Receiver channel

Code figure	Meaning
0	Mie
1	Rayleigh
2	Cross polar
3	Missing value

0-06-193 - SSTYPE

SST obs type

Code figure	Meaning
0	No type
1-128	Reserved
129	Nominal SST
130	AVHRR-only SST
131	HIRS/2-only SST
132	Coastal type
133-137	Reserved
138	Test type
139-149	Reserved
150	Heat budget observation
151	AVHRR-only day operational
152	AVHRR-only night operational
153	HIRS-only day operational
154	HIRS-only night operational
155	AVHRR+HIRS day operational
156	AVHRR+HIRS night operational
157	AVHRR - aerosol corrected - normal mode
158	AVHRR - aerosol corrected - relaxed cloud mode
159	Day operational relaxed cloud mode
160	Reserved
161	AVHRR-only day test
162	AVHRR-only night test
163	HIRS-only day test
164	HIRS-only night test
165	AVHRR+HIRS day test
166	AVHRR+HIRS night test
167-168	Reserved
169	AVHRR-only day test - warm spot mode
170	Reserved
171	Day operational
172	Night operational
173-178	Reserved
179	ITOS SST
180-199	Reserved
200	Independent SST (ship or buoy)
201-254	Reserved
255	Missing value

0-06-194 - SSTSRC

SST obs source

Code figure	Meaning
0	No source
1	NOAA-11
2	NOAA-16
3	NOAA-14
4	NOAA-15
5	NOAA-12
6	NOAA-17
7	NOAA-18 (prior to May 2005 was "NOAA-9")
8	NOAA-19
9-11	Reserved
12	METOP-2
13-50	Reserved
51	ITOS NOAA 1 Sensor #1
52	ITOS NOAA 1 Sensor #2
53	ITOS NOAA 2 Sensor #1
54	ITOS NOAA 2 Sensor #2
55	ITOS NOAA 3 Sensor #1
56	ITOS NOAA 3 Sensor #2
57	ITOS NOAA 4 Sensor #1
58	ITOS NOAA 4 Sensor #2
59	ITOS NOAA 5 Sensor #1
60	ITOS NOAA 5 Sensor #2
61	ITOS NOAA 5 Sensor #3
62	ITOS NOAA 5 Sensor #4
63-98	Reserved
99	Bogus data
100	Ship data from Navy (FNMOC)
101	Buoy data from TIROS collection system
102	Fixed weather ship (from NCEP)
103	Moving ship with name (from NCEP)
104	Moving ship without name (from NCEP)
105	Fixed buoy (from NCEP)
106	Drifting buoy (from NCEP)
107	XBT (from NCEP)
108-126	Reserved
127	Missing value

0-07-246 - PQM

PREPBUFR: Pressure (quality) marker

When the value of
0-07-247 - PPC (PREPBUFR: Pressure event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

When the value of
0-07-247 - PPC (PREPBUFR: Pressure event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-9	Reserved
10	Non-synthetic bogus mass report is in the vicinity of a tropical storm
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-07-247 - PPC (PREPBUFR: Pressure event program code)

= 4 (Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure)

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-7	Reserved
8	Observed surface pressure is > 1100 mb or < 450 mb, or is more than 100 mb above or below model (guess) surface pressure, or an observed pressure on any level is <= 0 mb or more than 100 mb above or below model (guess) pressure at same level, or a non-pressure observation failed a limit check
9	Observation error is missing
10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-07-247 - PPC (PREPBUFR: Pressure event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4	Observation with pre-existing quality marker 0 (keep) is flagged
5	Observation with pre-existing quality marker 1 (good) is flagged
6	Observation with pre-existing quality marker 2 (neutral/default) is flagged
7	Observation with pre-existing quality marker 3 (suspect) is flagged
8-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-07-247 - PPC (PREPBUFR: Pressure event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))
or
= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))
or
= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))
or
= 8 (Virtual temperature/specific humidity processing step "VIRTMP")
or
= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))
or
= 11 (Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs))
or
= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))
or
= 13 (Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program))
or
= 14 (ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

0-07-247 - PPC

PREPBUFR: Pressure event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-07-248 - PRC

PREPBUFR: Pressure event reason code

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-07-247 - PPC (PREPBUFR: Pressure event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-07-247 - PPC (PREPBUFR: Pressure event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-07-247 - PPC (PREPBUFR: Pressure event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-07-247 - PPC (PREPBUFR: Pressure event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-07-247 - PPC (PREPBUFR: Pressure event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-08-001 - VSIG

Vertical sounding significance

Bit number	Meaning
1	Surface
2	Standard level
3	Tropopause level
4	Maximum wind level
5	Significant level, temperature and/or relative humidity
6	Significant level, wind
All 7	Missing value

0-08-002 - VSSO

Vertical significance (surface observations)

Code figure	Meaning
0	Observing rules for base of lowest cloud and cloud types of FM 12 SYNOP and FM 13 SHIP apply
1	First non - Cb significant layer
2	Second non - Cb significant layer
3	Third non - Cb significant layer
4	Cumulonimbus layer
5	Ceiling
6	Clouds not detected below the following height(s)
7	Low cloud
8	Middle cloud
9	High cloud
10	Cloud layer with base below the station level and top above the station level
11	Cloud layer with base and top below the station level
12-19	Reserved
20	No clouds detected by the cloud detection system
21	First instrument detected cloud layer
22	Second instrument detected cloud layer
23	Third instrument detected cloud layer
24	Fourth instrument detected cloud layer
25-61	Reserved
62	Value not applicable
63	Missing value

0-08-003 - VSAT

Vertical significance (satellite observations)

Code figure	Meaning
0	Surface
1	Base of Satellite sounding
2	Cloud top
3	Tropopause
4	Precipitable water
5	Sounding Radiances
6	Mean Temperatures
7	Ozone
8	Low cloud
9	Med Cloud
10	High cloud
11-62	Reserved
63	Missing value

0-08-004 - POAF

Phase of aircraft flight

Code figure	Meaning
0-1	Reserved
2	Unsteady (UNS)
3	Level flight, routine observation (LVR)
4	Level flight, highest wind encountered (LVW)
5	Ascending (ASC)
6	Descending (DES)
7	Missing value

0-08-005 - SSFO

Meteorological attribute significance

Code figure	Meaning
0	Reserved
1	Storm center
2	Outer limit or edge of storm
3	Location of maximum wind
4	Location of the storm in the perturbed analysis
5	Location of the storm in the analysis
6-14	Reserved
15	Missing value

0-08-006 - OVSS

Ozone vertical sounding significance

Bit number	Meaning
1	Surface
2	Standard level
3	Tropopause level
4	Prominent maximum level
5	Prominent minimum level
6	Minimum pressure level
7	Reserved
8	Level of undetermined significance
All 9	Missing value

0-08-007 - DIMS

Dimensional significance

Code figure	Meaning
0	Point
1	Line
2	Area
3	Volume
4-14	Reserved
15	Missing value

0-08-008 - RVSS

Radiation vertical sounding significance

Bit number	Meaning
1	Surface
2	Standard level
3	Tropopause level
4	Level of beta radiation maximum
5	Level of gamma radiation maximum
6	Minimum pressure level
7	Reserved
8	Level of undetermined significance
All 9	Missing value

0-08-009 - DPOF

Detailed phase of flight

Code figure	Meaning
0	Level flight, routine observation, unsteady
1	Level flight, highest wind encountered, unsteady
2	Unsteady (UNS)
3	Level flight, routine observation (LVR)
4	Level flight, highest wind encountered (LVW)
5	Ascending (ASC)
6	Descending (DES)
7	Ascending, observation intervals selected by time increments
8	Ascending, observation intervals selected by time increments, unsteady
9	Ascending, observation intervals selected by pressure increments
10	Ascending, observation intervals selected by pressure increments, unsteady
11	Descending, observation intervals selected by time increments
12	Descending, observation intervals selected by time increments, unsteady
13	Descending, observation intervals selected by pressure increments
14	Descending, observation intervals selected by pressure increments, unsteady
15	Missing value

0-08-010 - SFCQ

Surface qualifier (temperature data)

Code figure	Meaning
0	Reserved
1	Bare soil
2	Bare rock
3	Land grass cover
4	Water (lake, sea)
5	Flood water underneath
6	Snow
7	Ice
8	Runway or road
9	Ship or platform deck in steel
10	Ship or platform deck in wood
11	Ship or platform deck partly covered with rubber mat
12	Building roof
13-30	Reserved
31	Missing value

0-08-011 - METFET

Meteorological feature

Code figure	Meaning
0	Quasi stationary front at the surface
1	Quasi stationary front above the surface
2	Warm front at the surface
3	Warm front above the surface
4	Cold front at the surface
5	Cold front above the surface
6	Occlusion
7	Instability line
8	Intertropical front
9	Convergence line
10	Jet stream
11	Cloud clear
12	Cloud
13	Turbulence
14	Storm
15	Airframe icing
16	Phenomenon
17	Volcano
18	Atmospherics
19	Reserved
20	Special clouds
21	Thunderstorm
22	Tropical cyclone
23	Mountain Wave
24	Duststorm
25	Sandstorm
26-62	Reserved
63	Missing value

0-08-012 - LSQL

Land/sea qualifier

Code figure	Meaning
0	Land
1	Sea
2	Coast
3	Missing value

0-08-013 - DNQL

Day/night qualifier

Code figure	Meaning
0	Night
1	Day
2	Twilight
3	Missing value

0-08-014 - RVRQ

Qualifier for runway visual range

Code figure	Meaning
0	10 minute mean value normal value
1	10 minute mean value above the upper limit for assessments of RVR (P)
2	10 minute mean value below the lower limit for assessments of RVR (M)
3	one minute minimum value normal value
4	one minute minimum value above the upper limit for assessments of RVR (P)
5	one minute minimum value below the lower limit for assessments of RVR (M)
6	one minute maximum value normal value
7	one minute maximum value above the upper limit for assessments of RVR (P)
8	one minute maximum value below the lower limit for assessments of RVR (M)
9-14	Reserved
15	Missing value

0-08-015 - SIGS

Significant qualifier for sensor

Code figure	Meaning
0	Single sensor
1	Primary sensor
2	Secondary sensor (backup)
3-6	Reserved
7	Missing value

0-08-016 - CHQL

Change qualifier of a trend-type forecast or an aerodrome forecast

Code figure	Meaning
0	NOSIG
1	BECMG
2	TEMPO
3	FM
4-6	Reserved
7	Missing value

0-08-017 - FCQL

Qualifier of the time when the forecast change is expected

Code figure	Meaning
0	FM
1	TL
2	AT
3	Missing value

0-08-018 - SLIT

SEAWINDS land/ice surface type

Bit number	Meaning
1	Land is present
2	Surface ice map indicates ice is present
3-10	Reserved
11	Ice map data not available
12	Attenuation map data not available
13-16	Reserved
All 17	Missing value

0-08-019 - CIQL

Qualifier for following centre identifier

Code figure	Meaning
0	Reserved
1	ATS (Air Traffic Service) unit serving FIR (Flight Information Region)
2	FIR (Flight Information Region)
3	UIR (Upper Information Region)
4	CTA (Control Area)
5	VAAC (Volcanic Ash Advisory Centre)
6	MWO (Meteorological Watch Office) issuing SIGMET
7-14	Reserved
15	Missing value

0-08-021 - TSIG

Time significance

Code figure	Meaning
0	Reserved
1	Time series
2	Time averaged
3	Accumulated
4	Forecast
5	Forecast time series
6	Forecast time averaged
7	Forecast accumulated
8	Ensemble mean
9	Ensemble mean time series
10	Ensemble mean time averaged
11	Ensemble mean accumulated
12	Ensemble mean forecast
13	Ensemble mean forecast time series
14	Ensemble mean forecast time averaged
15	Ensemble mean forecast accumulated
16	Analysis
17	Start of phenomenon
18	Radiosonde launch time
19	Start of orbit
20	End of orbit
21	Time of ascending node
22	Time of occurrence of wind shift
23	Monitoring period
24	Agreed time limit for report reception
25	Nominal reporting time
26	Time of last known position
27	First guess
28	Start of scan
29	End of scan or time of ending
30	Time of occurrence
31	Missing value

0-08-023 - FOST

First-order statistics

Code figure	Meaning
0-1	Reserved
2	Maximum value
3	Minimum value
4	Mean value
5	Median value
6	Modal value
7	Mean absolute error
8	Reserved
9	Best estimate of standard deviation (N-1)
10	Standard deviation (N)
11	Harmonic mean
12	Root-mean-square vector error
13	Root-mean-square
14	Root-mean-square error
15-31	Reserved
32	Vector mean
33-62	Reserved
63	Missing value

0-08-024 - DFST

Difference statistics

Code figure	Meaning
0-1	Reserved
2	Observed minus maximum
3	Observed minus minimum
4	Observed minus mean
5	Observed minus median
6	Observed minus mode
7-10	Reserved
11	Observed minus climatology (anomaly)
12	Observed minus analyzed value
13	Observed minus initialized analyzed value
14	Observed minus forecast value
15-20	Reserved
21	Observed minus interpolated value
22	Observed minus hydrostatically calculated value
23-62	Reserved
63	Missing value

0-08-025 - TDQL

Time difference qualifier

Code figure	Meaning
0	Universal Time Coordinated (UTC) minus Local Standard Time (LST)
1	Local Standard Time
2	Universal Time Coordinated (UTC) minus Satellite clock
3-4	Reserved
5	Time difference from edge of processing segment
6-14	Reserved
15	Missing value

0-08-026 - MTXSIG

Matrix significance

Code figure	Meaning
0	Averaging kernel matrix
1	Correlation matrix (C)
2	Lower triangular correlation matrix square root (L from C=LL^T)
3	Inverse of lower triangular correlation matrix square root (L⁻¹)
4-62	Reserved
63	Missing value

0-08-029 - RSST

Surface type

Code figure	Meaning
0	Open ocean or semi-enclosed sea
1	Enclosed sea or lake
2	Continental ice
3	Land
4	Low inland (below sea level)
5	Mix of land and water
6	Mix of land and low inland
7-10	Reserved
11	River
12	Lake
13	Sea
14	Glacier
15	Urban land
16	Rural land
17	Suburban land
18	Sea ice
19	Forest
20	Shrublands
21	Savanna
22	Desert
23	Grasslands
24	Wetlands
25	Snow/ice
26	Coast
27-254	Reserved
255	Missing value

0-08-032 - SOOP

Status of operation

Code figure	Meaning
0	Routine operation
1	Event triggered by storm surge
2	Event triggered by tsunami
3	Event triggered manually
4	Installation testing
5	Maintenance testing
6-14	Reserved
15	Missing value

0-08-033 - MDPC

Method of derivation of percentage confidence

Code figure	Meaning
0	Reserved
1	Percentage confidence calculated using cloud fraction
2	Percentage confidence calculated using standard deviation of temperature
3	Percentage confidence calculated using probability of cloud contamination
4	Percentage confidence calculated using normality of distribution
5-126	Reserved
127	Missing value

0-08-034 - TSQL

Temperature/salinity measurement qualifier

Code figure	Meaning
0	Secondary sampling: averaged
1	Secondary sampling: discrete
2	Secondary sampling: mixed
3	Near-surface sampling: averaged, pumped
4	Near-surface sampling: averaged, unpumped
5	Near-surface sampling: discrete, pumped
6	Near-surface sampling: discrete, unpumped
7	Near-surface sampling: mixed, pumped
8	Near-surface sampling: mixed, unpumped
9-14	Reserved
15	Missing value

0-08-035 - TOME

Type of monitoring exercise

Code figure	Meaning
0	Global
1	Regional
2	National
3	Special
4	Bilateral
5-6	Reserved
7	Missing value

0-08-036 - TSPM

Type of centre or station performing monitoring

Code figure	Meaning
0	WMO Secretariat
1	WMO
2	RSMC
3	NMC
4	RTH
5	Observing site
6	Other
7	Missing value

0-08-037 - BLCSIG

Baseline check significance

Code figure	Meaning
0	Manufacturer's baseline unit check
1	Weather screen
2	GRUAN standard humidity chamber
3-30	Reserved
31	Missing value

0-08-038 - INDSIG

Instrument data significance

Code figure	Meaning
0	Verified instrument reading
1	Reference instrument reading
2-254	Reserved
255	Missing value

0-08-039 - TSIGAF

Time significance (Aviation forecast)

Code figure	Meaning
0	Issue time of forecast
1	Time of commencement of period of the forecast
2	Time of ending of period of the forecast
3	Forecast time of maximum temperature
4	Forecast time of minimum temperature
5	Time of beginning of the forecast change
6	Time of ending of the forecast change
7-62	Reserved
63	Missing value

0-08-040 - LEVSIG

Flight level significance

Code figure	Meaning
0	High-resolution data sample
1	Within 20 hPa of surface
2	Pressure less than 10 hPa (i.e. 9, 8, 7, etc.) when no other reason applies
3	Base pressure level for stability index
4	Begin doubtful temperature, height data
5	Begin missing data (all elements)
6	Begin missing relative humidity data
7	Begin missing temperature data
8	Highest level reached before balloon descent because of icing or turbulence
9	End doubtful temperature, height data
10	End missing data (all elements)
11	End missing relative humidity data
12	End missing temperature data
13	Zero degrees C crossing(s) for RADAT
14	Standard pressure level
15	Operator added level
16	Operator deleted level
17	Balloon re ascended beyond previous highest ascent level
18	Significant RH level
19	RH level selection terminated
20	Surface level
21	Significant temperature level
22	Mandatory temperature level
23	Flight termination level
24	Tropopause(s)
25	Aircraft report
26	Interpolated (generated) level
27	Mandatory wind level
28	Significant wind level
29	Maximum wind level
30	Incremental wind level (fixed regional)
31	Incremental height level (generated)
32	Wind termination level
33	Pressure 100 to 110 hPa, when no other reason applies
34	Freezing level base
35	Freezing level top
36	Flight level base
37	Flight level top
38	Top of wind sounding
39	Bottom of wind sounding
40	Significant thermodynamic level (inversion)
41	Significant RH level (per NCDC criteria)
42	Significant temperature level (per NCDC)
43	Begin missing wind data
44	End missing wind data
45-59	Reserved
60	Level of 80-knot isotach above jet
61	Level of 80-knot isotach below jet
62	Other
63	Missing value

0-08-041 - DATSIG

Data significance

Code figure	Meaning
0	Parent site
1	Observation site
2	Balloon manufacture date
3	Balloon launch point
4	Surface observation
5	Surface observation displacement from launch point
6	Flight level observation
7	Flight level termination point
8	IFR Ceiling and Visibility
9	Mountain obscuration
10	Strong surface wind
11	Freezing level
12	Multiple freezing level
13	Instrument manufacture date
14-30	Reserved
31	Missing value

0-08-042 - VSIGX

Extended vertical sounding significance

Bit number	Meaning
1	Surface
2	Standard level
3	Tropopause level
4	Maximum wind level
5	Significant temperature level
6	Significant humidity level
7	Significant wind level
8	Beginning of missing temperature data
9	End of missing temperature data
10	Beginning of missing humidity data
11	End of missing humidity data
12	Beginning of missing wind data
13	End of missing wind data
14	Top of wind sounding
15	Level determined by regional decision
16	Freezing level
17	Pressure level originally indicated by height as the vertical coordinate
All 18	Missing value

0-08-043 - ATCT

Atmospheric chemical or physical constituent type

Code figure	Meaning
0	Ozone
1	Water vapour
2	Methane
3	Carbon dioxide
4	Carbon monoxide
5	Nitrogen dioxide
6	Nitrous oxide
7	Formaldehyde
8	Sulfur dioxide
9	Volcanic sulphur dioxide
10-24	Reserved
25	Particulate Matter < 1.0 microns
26	Particulate Matter < 2.5 microns
27	Particulate Matter < 10 microns
28	Aerosols (generic)
29	Smoke (generic)
30	Crustal Material (generic dust)
31	Volcanic Ash
32	Cloud
33	Cloud and aerosols
34-254	Reserved
255	Missing value

0-08-045 - PMCH

Character of particulate matter

Code figure	Meaning
0	Aerosols all types
1	Desert dust
2	Black carbon
3	Sea salt
4-254	Reserved
255	Missing value

0-08-046 - ACCT

Atmospheric chemical or physical constituent type

Code figure	Meaning
0	Ozone (O₃)
1	Water vapour (H₂O)
2	Methane (CH₄)
3	Carbon dioxide (CO₂)
4	Carbon monoxide (CO)
5	Nitrogen dioxide (NO₂)
6	Nitrous oxide (N₂O)
7	Formaldehyde (HCHO)
8	Sulphur dioxide (SO₂)
9	Ammonia (NH₃)
10	Ammonium cation (NH₄⁺)
11	Nitrogen monoxide (NO)
12	Atomic oxygen (O)
13	Nitrate radical (NO₃)
14	Hydroperoxyl radical (HOO)
15	Dinitrogen pentoxide (N₂O₅)
16	Nitrous acid (HONO)
17	Nitric acid (HNO₃)
18	Peroxynitric acid (HO₂NO₂)
19	Hydrogen peroxide (H₂O₂)
20	Dihydrogen (H₂)
21	Atomic nitrogen (N)
22	Sulphate anion (SO₄⁻⁻)
23	Atomic radon (Rn)
24	Mercury vapour (Hg(0))
25	Mercury(II) cation (Hg₂⁺)
26	Atomic chlorine (Cl)
27	Chlorine monoxide (ClO)
28	Dichlorine peroxide (Cl₂O₂)
29	Hypochlorous acid (HClO)
30	Chlorine nitrate (ClONO₂)
31	Chlorine dioxide (ClO₂)
32	Atomic bromine (Br)
33	Bromine monoxide (BrO)
34	Bromine chloride (BrCl)
35	Hydrogen bromide (HBr)
36	Hypobromous acid (HBrO)
37	Bromine nitrate (BrONO₂)
38	Dioxygen (O₂)
39	Nitryl chloride (NO₂Cl)
40	Sulphuric Acid (H₂SO₄)
41	Hydrogen sulphide (H₂S)
42	Sulphur trioxide (SO₃)
43	Bromine (Br₂)
44	Hydrofluoric acid (HF)
45	Sulfur hexaflouride (SF₆)
46	Chlorine (Cl₂)
47-9999	Reserved
10000	Hydroxyl radical (OH)
10001	Methyl peroxy radical (CH₃OO)
10002	Methyl hydroperoxide (CH₃O₂H)
10003	Reserved
10004	Methanol (CH₃OH)
10005	Formic acid (CH₃OOH)
10006	Hydrogen Cyanide (HCN)
10007	Aceto nitrile (CH₃CN)
10008	Ethane (C₂H₆)
10009	Ethene (= Ethylene) (C₂H₄)
10010	Ethyne (= Acetylene) (C₂H₂)
10011	Ethanol (C₂H₅OH)
10012	Acetic acid (C₂H₅OOH)
10013	Peroxyacetyl nitrate (CH₃C(O)OONO₂)
10014	Propane (C₃H₈)
10015	Propene (C₃H₆)
10016	Butanes (all isomers)
10017	Isoprene (C₅H₁₀)
10018	Alpha pinene (C₁₀H₁₆)
10019	Beta pinene (C₁₀H₁₆)
10020	Limonene (C₁₀H₁₆)
10021	Benzene (C₆H₆)
10022	Toluene (C₇H₈)
10023	Xylene (C₈H₁₀)
10024	Methanesulphonic acid
10025	Methylglyoxal (2-oxopropanal)
10026	Peroxyacetyl radical
10027	Methacrylic acid (2-methylprop-2-enoic acid)
10028	Methacrolein (2-methylprop-2-enal)
10029	Acetone (propan-2-one)
10030	Ethyl dioxidanyl radical
10031	Butadiene (buta-1,3-diene)
10032	Acetaldehyde (ethanal)
10033	Glycolaldehyde (hydroxyethanal)
10034	Cresol (methylphenol), all isomers
10035	Peracetic acid (ethaneperoxoic acid)
10036	2-hydroxyethyl oxidanyl radical
10037	2-hydroxyethyl dioxidanyl radical
10038	Glyoxal (oxaldehyde)
10039	Isopropyl dioxidanyl radical
10040	Isopropyl hydroperoxide (2-hydroperoxypropane)
10041	Hydroxyacetone (1-hydroxypropan-2-one)
10042	Peroxyacetic acid (ethaneperoxoic acid)
10043	Methyl vinyl ketone (but-3-en-2-one)
10044	Phenoxy radical
10045	Methyl radical
10046	Carbonyl sulphide (carbon oxide sulphide)
10047	Dibromomethane (CH₂BR₂)
10048	Methoxy radical
10049	Tribromomethane (CHBR₃)
10050	Formyl radical (oxomethyl radical)
10051	Hydroxymethyl dioxidanyl radical
10052	Ethyl hydroperoxide
10053	3-hydroxypropyl dioxidanyl radical
10054	3-hydroxypropyl hydroperoxide
10055	Methyl-peroxy-nitrate (Nitroperoxy-methane)
10056	2-lambda-1-Oxidanyloxy-2-methylbut-3-en-1-ol (4-Hydroxy-3-methyl-1-butene-3-ylperoxy radical)
10057	2-lambda-1-Oxidanyloxy-3-methylbut-3-en-1-ol (2-Hydroxy-1-isopropenylethylperoxy radical)
10058	(Z)-4-Hydroperoxy-2-methyl-2-butenal
10059	(Z)-4-Hydroperoxy-3-methyl-2-butenal
10060-10499	Reserved
10500	Dimethyl sulphide (CH₃SCH₃ (DMS))
10501	Dimethyl sulphoxide ((CH₃)₂SO (DMSO))
10502-20000	Reserved
20001	Hydrogen chloride (HCl)
20002	CFC-11
20003	CFC-12
20004	CFC-113
20005	CFC-113a
20006	CFC-114
20007	CFC-115
20008	HCFC-22
20009	HCFC-141b
20010	HCFC-142b
20011	Halon-1202
20012	Halon-1211
20013	Halon-1301
20014	Halon-2402
20015	Methyl chloride (HCC-40)
20016	Carbon tetrachloride (HCC-10)
20017	HCC-140a (CH₃CCl₃)
20018	Methyl bromide (HBC-40B1)
20019	Hexachlorocyclohexane (HCH) all isomers
20020	Alpha hexachlorocyclohexane both enantiomers
20021	Hexachlorobiphenyl (PCB-153)
20022	HCFC 141a (1,1-dichloro-2-fluoro-ethane)
20023-29999	Reserved
30000	Radioactive pollutant (tracer, defined by originating centre)
30001-30009	Reserved
30010	Tritium (Hydrogen 3)
30011	Tritium organic bounded
30012	Tritium inorganic
30013	Beryllium 7
30014	Beryllium 10
30015	Carbon 14
30016	Carbon 14 carbon dioxide
30017	Carbon 14 other gases
30018	Nitrogen 13
30019	Nitrogen 16
30020	Fluorine 18
30021	Sodium 22
30022	Phosphate 32
30023	Phosphate 33
30024	Sulfur 35
30025	Chlorine 36
30026	Potassium 40
30027	Argon 41
30028	Calcium 41
30029	Calcium 45
30030	Titanium 44
30031	Scandium 46
30032	Vanadium 48
30033	Vanadium 49
30034	Chrome 51
30035	Manganese 52
30036	Manganese 54
30037	Iron 55
30038	Iron 59
30039	Cobalt 56
30040	Cobalt 57
30041	Cobalt 58
30042	Cobalt 60
30043	Nickel 59
30044	Nickel 63
30045	Zinc 65
30046	Gallium 67
30047	Gallium 68
30048	Germanium 68
30049	Germanium 69
30050	Arsenic 73
30051	Selenium 75
30052	Selenium 79
30053	Rubidium 81
30054	Reserved
30055	Rubidium 84
30056	Rubidium 86
30057	Rubidium 87
30058	Rubidium 88
30059	Krypton 85
30060	Krypton 85 metastable
30061	Krypton 87
30062	Krypton 88
30063	Krypton 89
30064	Strontium 85
30065	Strontium 89
30066	Strontium 89/90
30067	Strontium 90
30068	Strontium 91
30069	Strontium 92
30070	Yttrium 87
30071	Yttrium 88
30072	Yttrium 90
30073	Yttrium 91
30074	Yttrium 91 metastable
30075	Yttrium 92
30076	Yttrium 93
30077	Zirconium 89
30078	Zirconium 93
30079	Zirconium 95
30080	Zirconium 97
30081	Niobium 93 metastable
30082	Niobium 94
30083	Niobium 95
30084	Niobium 95 metastable
30085	Niobium 97
30086	Niobium 97 metastable
30087	Molybdenum 93
30088	Molybdenum 99
30089	Technetium 95 metastable
30090	Technetium 96
30091	Technetium 99
30092	Technetium 99 metastable
30093	Rhodium 99
30094	Rhodium 101
30095	Rhodium 102 metastable
30096	Rhodium 103 metastable
30097	Rhodium 105
30098	Rhodium 106
30099	Palladium 100
30100	Palladium 103
30101	Palladium 107
30102	Ruthenium 103
30103	Ruthenium 105
30104	Ruthenium 106
30105	Silver 108 metastable
30106	Silver 110 metastable
30107	Cadmium 109
30108	Cadmium 113 metastable
30109	Cadmium 115 metastable
30110	Indium 114 metastable
30111	Tin 113
30112	Tin 119 metastable
30113	Tin 121 metastable
30114	Tin 122
30115	Tin 123
30116	Tin 126
30117	Antimony 124
30118	Antimony 125
30119	Antimony 126
30120	Antimony 127
30121	Antimony 129
30122	Tellurium 123 metastable
30123	Tellurium 125 metastable
30124	Tellurium 127
30125	Tellurium 127 metastable
30126	Tellurium 129
30127	Tellurium 129 metastable
30128	Tellurium 131 metastable
30129	Tellurium 132
30130	Iodine 123
30131	Iodine 124
30132	Iodine 125
30133	Iodine 126
30134	Iodine 129
30135	Iodine 129 elementary gaseous
30136	Iodine 129 organic bounded
30137	Iodine 131
30138	Iodine 131 elementary gaseous
30139	Iodine 131 organic bounded
30140	Iodine 131 gaseous elementary and organic bounded
30141	Iodine 131 aerosol
30142	Iodine 132
30143	Iodine 132 elementary gaseous
30144	Iodine 132 organic bounded
30145	Iodine 132 gaseous elementary and organic bounded
30146	Iodine 132 aerosol
30147	Iodine 133
30148	Iodine 133 elementary gaseous
30149	Iodine 133 organic bounded
30150	Iodine 133 gaseous elementary and organic bounded
30151	Iodine 133 aerosol
30152	Iodine 134
30153	Iodine 134 elementary gaseous
30154	Iodine 134 organic bounded
30155	Iodine 135
30156	Iodine 135 elementary gaseous
30157	Iodine 135 organic bounded
30158	Iodine 135 gaseous elementary and organic bounded
30159	Iodine 135 aerosol
30160	Xenon 131 metastable
30161	Xenon 133
30162	Xenon 133 metastable
30163	Xenon 135
30164	Xenon 135 metastable
30165	Xenon 137
30166	Xenon 138
30167	Xenon sum of all Xenon isotopes
30168	Caesium 131
30169	Caesium 134
30170	Caesium 135
30171	Caesium 136
30172	Caesium 137
30173	Barium 133
30174	Barium 137 metastable
30175	Barium 140
30176	Cerium 139
30177	Cerium 141
30178	Cerium 143
30179	Cerium 144
30180	Lanthanum 140
30181	Lanthanum 141
30182	Praseodymium 143
30183	Praseodymium 144
30184	Praseodymium 144 metastable
30185	Samarium 145
30186	Samarium 147
30187	Samarium 151
30188	Neodymium 147
30189	Promethium 146
30190	Promethium 147
30191	Promethium 151
30192	Europium 152
30193	Europium 154
30194	Europium 155
30195	Gadolinium 153
30196	Terbium 160
30197	Holmium 166 metastable
30198	Thulium 170
30199	Ytterbium 169
30200	Hafnium 175
30201	Hafnium 181
30202	Tantalum 179
30203	Tantalum 182
30204	Rhenium 184
30205	Iridium 192
30206	Mercury 203
30207	Thallium 204
30208	Thallium 207
30209	Thallium 208
30210	Thallium 209
30211	Bismuth 205
30212	Bismuth 207
30213	Bismuth 210
30214	Bismuth 211
30215	Bismuth 212
30216	Bismuth 213
30217	Bismuth 214
30218	Polonium 208
30219	Polonium 210
30220	Polonium 212
30221	Polonium 213
30222	Polonium 214
30223	Polonium 215
30224	Polonium 216
30225	Polonium 218
30226	Lead 209
30227	Lead 210
30228	Lead 211
30229	Lead 212
30230	Lead 214
30231	Astatine 217
30232	Radon 219
30233	Radon 220
30234	Radon 222
30235	Francium 221
30236	Francium 223
30237	Radium 223
30238	Radium 224
30239	Radium 225
30240	Radium 226
30241	Radium 228
30242	Actinium 225
30243	Actinium 227
30244	Actinium 228
30245	Thorium 227
30246	Thorium 228
30247	Thorium 229
30248	Thorium 230
30249	Thorium 231
30250	Thorium 232
30251	Thorium 234
30252	Protactinium 231
30253	Protactinium 233
30254	Protactinium 234 metastable
30255	Uranium 232
30256	Uranium 233
30257	Uranium 234
30258	Uranium 235
30259	Uranium 236
30260	Uranium 237
30261	Uranium 238
30262	Plutonium 236
30263	Plutonium 238
30264	Plutonium 239
30265	Plutonium 240
30266	Plutonium 241
30267	Plutonium 242
30268	Plutonium 244
30269	Neptunium 237
30270	Neptunium 238
30271	Neptunium 239
30272	Americium 241
30273	Americium 242
30274	Americium 242 metastable
30275	Americium 243
30276	Curium 242
30277	Curium 243
30278	Curium 244
30279	Curium 245
30280	Curium 246
30281	Curium 247
30282	Curium 248
30283	Curium 243/244
30284	Plutonium 238/Americium 241
30285	Plutonium 239/240
30286	Berkelium 249
30287	Californium 249
30288	Californium 250
30289	Californium 252
30290	Sum aerosol particulates
30291	Sum Iodine
30292	Sum noble gas
30293	Activation gas
30294	Cs-137 equivalent
30295	Carbon 13
30296	Lead (Pb)
30297	Tellurium 131
30298	Neodymium 137
30299-39999	Reserved
40000	Singlet sigma oxygen (dioxygen (sigma singlet))
40001	Singlet delta oxygen (dioxygen (delta singlet))
40002	Singlet excited oxygen atom
40003	Triplet ground state oxygen atom
40004-59999	Reserved
60000	HOx radical (OH+HO₂)
60001	Total inorganic and organic peroxy radicals (HO₂ + RO₂) (RO₂)
60002	Passive Ozone
60003	NOx expressed as nitrogen (NOx)
60004	All nitrogen oxides (NOx) expressed as nitrogen (NOx)
60005	Total inorganic chlorine (Clx)
60006	Total inorganic bromine (Brx)
60007	Total inorganic chlorine except HCl, ClONO₂: ClOx
60008	Total inorganic bromine except HBr, BrONO₂: BrOx
60009	Lumped Alkanes
60010	Lumped Alkenes
60011	Lumped Aromatic Compounds
60012	Lumped Terpenes
60013	Non-methane volatile organic compounds expressed as carbon (NMVOC)
60014	Anthropogenic non-methane volatile organic compounds expressed as carbon (aNMVOC)
60015	Biogenic non-methane volatile organic compounds expressed as carbon (bNMVOC)
60016	Lumped oxygenated hydrocarbons (OVOC)
60017	NOx expressed as nitrogen dioxide (NO₂)
60018	Organic aldehydes
60019	Organic peroxides
60020	Organic nitrates
60021	Ethers
60022	Amines
60023	Ketones
60024	Dicarbonyls unsaturated
60025	Hydroxy dicarbonyls unsaturated
60026	Hydroxy ketones
60027	Oxides
60028	Peroxyacyl nitrates
60029	Aromatic peroxide radicals (Aryl dioxydanyl radicals)
60030	Biogenic secondary organic compound
60031	Anthropogenic secondary organic compound
60032	All hydroxy-peroxide products of the reaction of hydroxy-isoprene adducts with oxygen
60033	Anthropogenic volatile organic compounds
60034	Biomass burning volatile organic compounds
60035-61999	Reserved
62000	Total aerosol
62001	Dust dry
62002	Water in ambient
62003	Ammonium dry
62004	Nitrate dry
62005	Nitric acid trihydrate
62006	Sulphate dry
62007	Mercury dry
62008	Sea salt dry
62009	Black carbon dry
62010	Particulate organic matter dry
62011	Primary particulate organic matter dry
62012	Secondary particulate organic matter dry
62013	Black carbon hydrophilic dry
62014	Black carbon hydrophobic dry
62015	Particulate organic matter hydrophilic dry
62016	Particulate organic matter hydrophobic dry
62017	Nitrate hydrophilic dry
62018	Nitrate hydrophobic dry
62019	Reserved
62020	Smoke - high absorption
62021	Smoke - low absorption
62022	Aerosol - high absorption
62023	Aerosol - low absorption
62024	Reserved
62025	Volcanic ash
62026	Particulate matter (PM)
62027	Reserved
62028	Total aerosol hydrophilic
62029	Total aerosol hydrophobic
62030	Primary particulate inorganic matter dry
62031	Secondary particulate inorganic matter dry
62032	Biogenic secondary organic aerosol
62033	Anthropogenic secondary organic aerosol
62034	Rain water
62035	Cloud water
62036	Brown carbon dry
62037-62099	Reserved
62100	Alnus (Alder) pollen
62101	Betula (Birch) pollen
62102	Castanea (Chestnut) pollen
62103	Carpinus (Hornbeam) pollen
62104	Corylus (Hazel) pollen
62105	Fagus (Beech) pollen
62106	Fraxinus (Ash) pollen
62107	Pinus (Pine) pollen
62108	Platanus (Plane) pollen
62109	Populus (Cottonwood, Poplar) pollen
62110	Quercus (Oak) pollen
62111	Salix (Willow) pollen
62112	Taxus (Yew) pollen
62113	Tilia (Lime, Linden) pollen
62114	Ulmus (Elm) pollen
62115	Olea (Olive) pollen
62116-62199	Reserved
62200	Ambrosia (Ragweed, Burr-ragweed) pollen
62201	Artemisia (Sagebrush, Wormwood, Mugwort) pollen
62202	Brassica (Rape, Broccoli, Brussels Sprouts, Cabbage, Cauliflower, Collards, Kale, Kohlrabi, Mustard, Rutabaga) pollen
62203	Plantago (Plantain) pollen
62204	Rumex (Dock, Sorrel) pollen
62205	Urtica (Nettle) pollen
62206-62299	Reserved
62300	Poaceae (Grass family) pollen
62301-65534	Reserved
65535	Missing value

0-08-050 - QNMV

Qualifier for number of missing values in calculation of statistic

Code figure	Meaning
0	Reserved
1	Pressure
2	Temperature
3	Extreme temperature
4	Vapour pressure
5	Precipitation
6	Sunshine duration
7	Maximum temperature
8	Minimum temperature
9	Wind
10-14	Reserved
15	Missing value

0-08-051 - QNMVX

Qualifier for number of missing values in calculation of statistic

Code figure	Meaning
0	Reserved
1	Pressure
2	Temperature
3	Extreme temperature
4	Vapour pressure
5	Precipitation
6	Sunshine duration
7	Missing value

0-08-052 - CNDO

Condition for which number of days of occurrence follows

Code figure	Meaning
0	Mean wind speed over a 10-minute period observed or recorded equal to or more than 10 m s⁻¹ or 20 knots
1	Mean wind speed over a 10-minute period observed or recorded equal to or more than 20 m s⁻¹ or 40 knots
2	Mean wind speed over a 10-minute period observed or recorded equal to or more than 30 m s⁻¹ or 60 knots
3	Maximum temperature less than 273.15 K
4	Maximum temperature equal to or more than 298.15 K
5	Maximum temperature equal to or more than 303.15 K
6	Maximum temperature equal to or more than 308.15 K
7	Maximum temperature equal to or more than 313.15 K
8	Minimum temperature less than 273.15 K
9	Maximum temperature equal to or more than 273.15 K
10	Precipitation equal to or more than 1.0 kg m⁻²
11	Precipitation equal to or more than 5.0 kg m⁻²
12	Precipitation equal to or more than 10.0 kg m⁻²
13	Precipitation equal to or more than 50.0 kg m⁻²
14	Precipitation equal to or more than 100.0 kg m⁻²
15	Precipitation equal to or more than 150.0 kg m⁻²
16	Snow depth more than 0.00 m
17	Snow depth more than 0.01 m
18	Snow depth more than 0.10 m
19	Snow depth more than 0.50 m
20	Horizontal visibility less than 50 m
21	Horizontal visibility less than 100 m
22	Horizontal visibility less than 1000 m
23	Hail
24	Thunderstorm
25-30	Reserved
31	Missing value

0-08-053 - DOQL

Day of occurrence qualifier

Code figure	Meaning
0	Value occurred on only one day in the month
1	Value occurred on more than one day in the month
2	Reserved
3	Missing value

0-08-054 - QWSG

Qualifier for wind speed or wind gusts

Code figure	Meaning
0	Wind speed or gust is as reported
1	Wind speed is greater than that reported (P in METAR/TAF/SPECI)
2-6	Reserved
7	Missing value

0-08-060 - SSMS

Sample scanning mode significance

Code figure	Meaning
0	Reserved
1	Range
2	Azimuth
3	Horizontal
4	Vertical
5	North/South
6	East/West
7-14	Reserved
15	Missing value

0-08-065 - SGIN

Sun-glint indicator

Code figure	Meaning
0	No sun-glint
1	Sun-glint
2	Reserved
3	Missing value

0-08-066 - STIN

Semi-transparency indicator

Code figure	Meaning
0	Opaque
1	Semi-transparent
2	Reserved
3	Missing value

0-08-070 - TAPQ

Vertical sounding product qualifier

Code figure	Meaning
0-1	Reserved
2	Earth located instrument counts, calibration coefficients and housekeeping (level 1b)
3	Earth located calibrated radiances (level 1c)
4	Mapped to a common footprint, Earth located calibrated radiances (level 1d)
5-14	Reserved
15	Missing value

0-08-071 - TCEST

Type of cost estimation

Code figure	Meaning
0	First guess
1	Y vector
2	X vector
3-6	Reserved
7	Missing value

0-08-072 - PIXT

Pixel(s) type

Code figure	Meaning
0	Mixed
1	Clear
2	Cloudy
3	Probably clear
4	Probably cloudy
5	Ash
6	Reserved
7	Missing value

0-08-074 - AETP

Altimeter echo type

Code figure	Meaning
0	Open ocean or semi-enclosed sea
1	Non-ocean like
2	Reserved
3	Missing value

0-08-075 - STKO

Ascending/descending orbit qualifier

Code figure	Meaning
0	Ascending orbit
1	Descending orbit
2	Reserved
3	Missing value

0-08-076 - TOBD

Type of band

Code figure	Meaning
0	Ku
1	C
2	Long-wave infrared
3	Medium-wave infrared
4	Short-wave infrared
5	M
6	I
7	Day/night
8-62	Reserved
63	Missing value

0-08-077 - DSST

Radiometer sensed surface type

Code figure	Meaning
0	Land
1	Sea
2	Coastal
3	Open ocean or semi-enclosed sea
4	Enclosed sea or lake
5	Continental ice
6-126	Reserved
127	Missing value

0-08-079 - CSFP

Product status

Code figure	Meaning
0	Normal issue
1	Correction to a previously issued product (COR)
2	Amendment to a previously issued product (AMD)
3	Correction to a previously issued amended product (COR AMD)
4	Cancellation of a previously issued product (CNL)
5	No product available (NIL)
6	Special report (SPECI)
7	Corrected special report (SPECI COR)
8-14	Reserved
15	Missing value

0-08-080 - QFQF

Qualifier for GTSPP quality flag

Code figure	Meaning
0	Total water pressure profile
1	Total water temperature profile
2	Total water salinity profile
3	Total water conductivity profile
4	Total water depth
5-9	Reserved
10	Water pressure at a level
11	Water temperature at a level
12	Salinity at a level
13	Water depth at a level
14	Sea/water current speed at a level
15	Sea/water current direction at a level
16	Dissolved oxygen at a level
17-19	Reserved
20	Position
21	Chlorophyll-A at a level
22	Nitrate at a level
23	pH at a level
24	BBP700 at a level
25	Water conductivity at a level
26	Sea water potential density referenced to sea surface at a level
27-62	Reserved
63	Missing value

0-08-081 - TOEQ

Type of equipment

Code figure	Meaning
0	Sensor
1	Transmitter
2	Receiver
3	Observing platform
4-62	Reserved
63	Missing value

0-08-082 - ACSH

Modification of sensor height to another value

Code figure	Meaning
0	Sensor height is not modified
1	Sensor height is modified to standard level
2-6	Reserved
7	Missing value

0-08-083 - NOVI

Nominal value indicator

Bit number	Meaning
1	Adjusted to or with respect to representative height of sensor above local ground (or deck of marine platform)
2	Adjusted to or with respect to representative height of sensor above water surface
3	Adjusted with respect to standard surface roughness
4	Adjusted with respect to wind speed
5	Adjusted with respect to temperature
6	Adjusted with respect to pressure
7	Adjusted with respect to humidity
8	Adjusted with respect to evaporation
9	Adjusted with respect to wetting losses
10-14	Reserved
All 15	Missing value

0-08-085 - BEAMI

Beam identifier

Code figure	Meaning
0	Fore beam
1	Mid beam
2	Aft beam
3-6	Reserved
7	Missing value

0-08-086 - VSNWP

Vertical significance for NWP

Bit number	Meaning
1	Model "ground" surface
2	Standard level
3	Tropopause level
4	Maximum wind level
5	Significant temperature level
6	Significant humidity level
7	Significant wind level
8	Vertically interpolated level (This should be set to 1 for points on the vertical profile that fall between the model's native vertical levels)
9	Virtual station height
10	Level of best fit
11	Reserved
All 12	Missing value

0-08-087 - CPOS

Corner position of observation

Code figure	Meaning
0	Upper left
1	Upper right
2	Lower right
3	Lower left
4-6	Reserved
7	Missing value

0-08-088 - MAPSIG

Map significance

Code figure	Meaning
0	Top view (geographical longitude on X axis and latitude on Y axis)
1	North-South view (transect with geographical longitude on X axis and vertical height on Y axis)
2	East-West view (transect with geographical latitude on X axis and vertical height on Y axis)
3-62	Reserved
63	Missing value

0-08-091 - CRDSIG

Coordinates significance

Code figure	Meaning
0	Satellite coordinates
1	Observation coordinates
2	Start of observation
3	End of observation
4	Horizontal center of gravity of the observation
5	Vertical center of gravity of the observation
6	Top of the observation
7	Bottom of the observation
8	Projection origin
9	Coordinates of true scale
10-254	Reserved
255	Missing value

0-08-092 - MUNCEX

Measurement uncertainty expression

Code figure	Meaning
0	Standard uncertainty
1	Combined standard uncertainty
2-30	Reserved
31	Missing value

0-08-093 - MUNCSG

Measurement uncertainty significance

Code figure	Meaning
0	Total uncertainty
1	Systematic component of uncertainty
2	Random component of uncertainty
3-30	Reserved
31	Missing value

0-08-094 - MCAVGDTM

Method used to calculate the average daily temperature

Code figure	Meaning
0	Average of maximum and minimum values: Tm = (Tx + Tn)/2
1	Average of 8 tri-hourly observations
2	Average of 24 hourly observations
3	Weighted average of 3 observations: Tm = (aT1 + bT2 + cT3)
4	Weighted average of 3 observations and also maximum and minimum values: Tm= (aT1 + bT2 + cT3 + dTx + eTn)
5	Automatic weather station complete integration from minute data
6	Average of 4 six-hourly observations
7-254	Reserved
255	Missing value

0-08-095 - SMQCTM

Siting and measurement quality classification for temperature

Code figure	Meaning
0	Reserved
1	1A (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
2	1B (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
3	1C (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
4	1D (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
5	Reserved
6	2A (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
7	2B (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
8	2C (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
9	2D (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
10	Reserved
11	3A (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
12	3B (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
13	3C (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
14	3D (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
15	Reserved
16	4A (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
17	4B (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
18	4C (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
19	4D (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
20	Reserved
21	5A (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
22	5B (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
23	5C (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
24	5D (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
25	Reserved
26	1 (Siting Classification according to ISO/WMO standard 119289:2014(E), Measurement Quality Classification is missing)
27	2 (Siting Classification according to ISO/WMO standard 119289:2014(E), Measurement Quality Classification is missing)
28	3 (Siting Classification according to ISO/WMO standard 119289:2014(E), Measurement Quality Classification is missing)
29	4 (Siting Classification according to ISO/WMO standard 119289:2014(E), Measurement Quality Classification is missing)
30	5 (Siting Classification according to ISO/WMO standard 119289:2014(E), Measurement Quality Classification is missing)
31	A (Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition, Siting Classification is missing)
32	B (Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition, Siting Classification is missing)
33	C (Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition, Siting Classification is missing)
34	D (Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition, Siting Classification is missing)
35-254	Reserved
255	Missing value

0-08-096 - SMQCPC

Siting and measurement quality classification for precipitation

Code figure	Meaning
0	Reserved
1	1A (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
2	1B (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
3	1C (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
4	1D (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
5	Reserved
6	2A (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
7	2B (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
8	2C (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
9	2D (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
10	Reserved
11	3A (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
12	3B (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
13	3C (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
14	3D (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
15	Reserved
16	4A (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
17	4B (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
18	4C (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
19	4D (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
20	Reserved
21	5A (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
22	5B (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
23	5C (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
24	5D (Siting Classification according to ISO/WMO standard 119289:2014(E) and Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition)
25	Reserved
26	1 (Siting Classification according to ISO/WMO standard 119289:2014(E), Measurement Quality Classification is missing)
27	2 (Siting Classification according to ISO/WMO standard 119289:2014(E), Measurement Quality Classification is missing)
28	3 (Siting Classification according to ISO/WMO standard 119289:2014(E), Measurement Quality Classification is missing)
29	4 (Siting Classification according to ISO/WMO standard 119289:2014(E), Measurement Quality Classification is missing)
30	5 (Siting Classification according to ISO/WMO standard 119289:2014(E), Measurement Quality Classification is missing)
31	A (Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition, Siting Classification is missing)
32	B (Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition, Siting Classification is missing)
33	C (Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition, Siting Classification is missing)
34	D (Measurement Quality Classification according to the Guide to Instruments and Methods of Observation (WMO-No. 8), 2020 Edition, Siting Classification is missing)
35-254	Reserved
255	Missing value

0-08-097 - MCAVGITM

Method used to calculate the average instrument temperature

Code figure	Meaning
0	The average of six temperature sensors placed throughout the payload
1	Average of WF-band IFP and RFE sensors for channels 1 to 8
2	Average of G-band RFE sensor for channels 9 to 12
3-126	Reserved
127	Missing value

0-08-098 - STMM

Source of temperature measurement

Code figure	Meaning
0	On-board calibration target
1	Space view reflector
2	Main reflector
3	Racetrack
4	Sun shield
5	Rotating reflector
6-14	Reserved
15	Missing value

0-08-099 - SDIR

Sensing direction

Code figure	Meaning
0	Nadir
1	Oblique
2-14	Reserved
15	Missing value

0-08-193 - CAT

PREPBUFR: Data level category

Code figure	Meaning
0	Surface level (mass reports only)
1	Mandatory level (upper-air profile reports)
2	Significant temperature level (upper-air profile reports)
3	Winds-by-pressure level (upper-air profile reports)
4	Winds-by-height level (upper-air profile reports)
5	Tropopause level (upper-air profile reports)
6	Single level report, or report not on any of the levels denoted by other values (e.g. aircraft, satellite wind, precipitable water, etc.)
7	Auxiliary levels generated via interpolation from spanning levels (upper-air profile reports)
8-9	Reserved
10	High-resolution level (upper-air profile reports)
11-62	Reserved
63	Missing value

0-08-201 - .RE....

Relationship to following value

Code figure	Meaning
0	"M" indicator present - the true value of the following parameter is below the minimum value which can be assessed with the system in use
1	Reserved
2	Neither "M" nor "P" found
3	Horizontal visibility field contains either "CAVOK" or "9999"
4	"P" indicator present - the true value of the following parameter is greater than the maximum value which can be assessed with the system in use
5-6	Reserved
7	Missing value

0-08-202 - RCTS

Receipt time significance

Code figure	Meaning
0	General decoder receipt time
1	NCEP receipt time
2	NWSTG receipt time
3	ARINC ground station receipt time
4	Radiosonde TEMP AA part receipt time
5	Radiosonde TEMP BB part receipt time
6	Radiosonde TEMP CC part receipt time
7	Radiosonde TEMP DD part receipt time
8	Radiosonde PILOT AA part receipt time
9	Radiosonde PILOT BB part receipt time
10	Radiosonde PILOT CC part receipt time
11	Radiosonde PILOT DD part receipt time
12-62	Reserved
63	Missing value

0-08-220 - QFGU

Qualifier as to whether first guess information was used in calculation of quality information for EUMETSAT winds

Code figure	Meaning
0	First guess used
1	First guess not used
2	Reserved
3	Missing value

0-08-225 - HGTSIG

Height significance

Code figure	Meaning
0	River stage
1	Tide (MLLW)
2	Elevation of pool
3-30	Reserved
31	Missing value

0-08-226 - DCHSIG

Discharge significance

Code figure	Meaning
0	Inflow
1	River
2	Computed total project outflow
3-30	Reserved
31	Missing value

0-08-227 - FCTSIG

Forecast significance

Code figure	Meaning
0	Forecast includes QPF
1	Public version (external)
2	Nonspecific forecast data
3-30	Reserved
31	Missing value

0-10-063 - CHPT

Characteristic of pressure tendency

Code figure	Meaning
0	Increasing, then decreasing; atmospheric pressure the same or higher than 3 hours ago
1	Increasing, then steady; or increasing, then increasing more slowly; atmospheric pressure now higher than 3 hours ago
2	Increasing (steadily or unsteadily); atmospheric pressure now higher than 3 hours ago
3	Decreasing or steady, then increasing; or increasing, then increasing more rapidly; atmospheric pressure now higher than 3 hours ago
4	Steady; atmospheric pressure the same as 3 hours ago
5	Decreasing, then increasing; atmospheric pressure the same or lower than 3 hours ago
6	Decreasing, then steady; or decreasing, then decreasing more slowly; atmospheric pressure now lower than 3 hours ago
7	Decreasing (steadily or unsteadily); atmospheric pressure now lower than 3 hours ago
8	Steady or increasing, then decreasing; or decreasing, then decreasing more rapidly; atmospheric pressure now lower than 3 hours ago
9-14	Reserved
15	Missing value

0-10-064 - SIGCL

SIGMET cruising level

Code figure	Meaning
0	Subsonic
1	Transonic
2	Supersonic
3-6	Reserved
7	Missing value

0-10-244 - PMQ

PREPBUFR: Mean sea-level pressure (quality) marker

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

0-10-246 - ZQM

PREPBUFR: Height (quality) marker

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 4 (Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure)

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-7	Reserved
8	Observed surface pressure is > 1100 mb or < 450 mb, or is more than 100 mb above or below model (guess) surface pressure, or an observed pressure on any level is <= 0 mb or more than 100 mb above or below model (guess) pressure at same level, or a non-pressure observation failed a limit check
9	Observation error is missing
10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4	Observation with pre-existing quality marker 0 (keep) is flagged
5	Observation with pre-existing quality marker 1 (good) is flagged
6	Observation with pre-existing quality marker 2 (neutral/default) is flagged
7	Observation with pre-existing quality marker 3 (suspect) is flagged
8-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))
or
= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))
or
= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))
or
= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))
or
= 8 (Virtual temperature/specific humidity processing step "VIRTMP")
or
= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))
or
= 11 (Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs))
or
= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))
or
= 13 (Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program))
or
= 14 (ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

0-10-247 - ZPC

PREPBUFR: Height event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-10-248 - ZRC

PREPBUFR: Height event reason code

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-10-247 - ZPC (PREPBUFR: Height event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-11-030 - DGOTX

Extended degree of turbulence

Code figure	Meaning
0	Nil, in cloud
1	Light, in cloud
2	Moderate, in cloud
3	Severe, in cloud
4	Nil, in clear air
5	Light, in clear air
6	Moderate, in clear air
7	Severe, in clear air
8	Nil, cloud/clear air not specified
9	Light, cloud/clear air not specified
10	Moderate, cloud/clear air not specified
11	Severe, cloud/clear air not specified
12	Extreme, in clear air
13	Extreme, in cloud
14	Extreme, cloud/clear air not specified
15	Light, isolated moderate
16	Light, occasional moderate
17	Light, frequently moderate
18	Moderate, isolated severe
19	Moderate, occasional severe
20	Moderate, frequently severe
21	Severe, isolated extreme
22	Severe, occasional extreme
23	Severe, frequently extreme
24-62	Reserved
63	Missing value

0-11-031 - DGOT

Degree of turbulence

Code figure	Meaning
0	Nil, in cloud
1	Light, in cloud
2	Moderate, in cloud
3	Severe, in cloud
4	Nil, in clear air
5	Light, in clear air
6	Moderate, in clear air
7	Severe, in clear air
8	Nil, cloud/clear air not specified
9	Light, cloud/clear air not specified
10	Moderate, cloud/clear air not specified
11	Severe, cloud/clear air not specified
12	Extreme, in clear air
13	Extreme, in cloud
14	Extreme, cloud/clear air not specified
15	Missing value

0-11-037 - TRBXST

Turbulence index

Code figure	Meaning
0	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.1 m⅔ s⁻¹
1	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
2	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
3	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
4	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
5	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
6	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
7	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
8	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
9	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
10	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
11	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
12	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
13	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
14	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
15	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.8 and >= 0.5 m⅔ s⁻¹
16	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.8 and >= 0.5 m⅔ s⁻¹
17	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.8 and >= 0.5 m⅔ s⁻¹
18	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.8 and >= 0.5 m⅔ s⁻¹
19	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value < 0.8 and >= 0.5 m⅔ s⁻¹
20	Average value of eddy dissipation rate < 0.8 and >= 0.5 m⅔ s⁻¹, and peak value < 0.8 and >= 0.5 m⅔ s⁻¹
21	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value >= 0.8 m⅔ s⁻¹
22	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value >= 0.8 m⅔ s⁻¹
23	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value >= 0.8 m⅔ s⁻¹
24	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value >= 0.8 m⅔ s⁻¹
25	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value >= 0.8 m⅔ s⁻¹
26	Average value of eddy dissipation rate < 0.8 and >= 0.5 m⅔ s⁻¹, and peak value >= 0.8 m⅔ s⁻¹
27	Average value of eddy dissipation rate >= 0.8 m⅔ s⁻¹, and peak value >= 0.8 m⅔ s⁻¹
28	Nil
29-62	Reserved
63	Missing value

0-11-038 - TOPEDR

Time of occurrence of peak eddy dissipation rate

Code figure	Meaning
0	min < 1 prior to observation time
1	1 <= min < 2 prior to observation time
2	2 <= min < 3 prior to observation time
3	3 <= min < 4 prior to observation time
4	4 <= min < 5 prior to observation time
5	5 <= min < 6 prior to observation time
6	6 <= min < 7 prior to observation time
7	7 <= min < 8 prior to observation time
8	8 <= min < 9 prior to observation time
9	9 <= min < 10 prior to observation time
10	10 <= min < 11 prior to observation time
11	11 <= min < 12 prior to observation time
12	12 <= min < 13 prior to observation time
13	13 <= min < 14 prior to observation time
14	14 <= min < 15 prior to observation time
15	No timing information available
16-30	Reserved
31	Missing value

0-11-039 - XTOPEDR

Extended time of occurrence of peak eddy dissipation rate

Code figure	Meaning
0	min < 1 prior to observation time
1	1 <= min < 2 prior to observation time
2	2 <= min < 3 prior to observation time
3	3 <= min < 4 prior to observation time
4	4 <= min < 5 prior to observation time
5	5 <= min < 6 prior to observation time
6	6 <= min < 7 prior to observation time
7	7 <= min < 8 prior to observation time
8	8 <= min < 9 prior to observation time
9	9 <= min < 10 prior to observation time
10	10 <= min < 11 prior to observation time
11	11 <= min < 12 prior to observation time
12	12 <= min < 13 prior to observation time
13	13 <= min < 14 prior to observation time
14	14 <= min < 15 prior to observation time
15	15 <= min < 16 prior to observation time
16	16 <= min < 17 prior to observation time
17	17 <= min < 18 prior to observation time
18	18 <= min < 19 prior to observation time
19	19 <= min < 20 prior to observation time
20	20 <= min < 21 prior to observation time
21	21 <= min < 22 prior to observation time
22	22 <= min < 23 prior to observation time
23	23 <= min < 24 prior to observation time
24	24 <= min < 25 prior to observation time
25	25 <= min < 26 prior to observation time
26	26 <= min < 27 prior to observation time
27	27 <= min < 28 prior to observation time
28	28 <= min < 29 prior to observation time
29	29 <= min < 30 prior to observation time
30	30 <= min < 31 prior to observation time
31	31 <= min < 32 prior to observation time
32	32 <= min < 33 prior to observation time
33	33 <= min < 34 prior to observation time
34	34 <= min < 35 prior to observation time
35	35 <= min < 36 prior to observation time
36	36 <= min < 37 prior to observation time
37	37 <= min < 38 prior to observation time
38	38 <= min < 39 prior to observation time
39	39 <= min < 40 prior to observation time
40	40 <= min < 41 prior to observation time
41	41 <= min < 42 prior to observation time
42	42 <= min < 43 prior to observation time
43	43 <= min < 44 prior to observation time
44	44 <= min < 45 prior to observation time
45	45 <= min < 46 prior to observation time
46	46 <= min < 47 prior to observation time
47	47 <= min < 48 prior to observation time
48	48 <= min < 49 prior to observation time
49	49 <= min < 50 prior to observation time
50	50 <= min < 51 prior to observation time
51	51 <= min < 52 prior to observation time
52	52 <= min < 53 prior to observation time
53	53 <= min < 54 prior to observation time
54	54 <= min < 55 prior to observation time
55	55 <= min < 56 prior to observation time
56	56 <= min < 57 prior to observation time
57	57 <= min < 58 prior to observation time
58	58 <= min < 59 prior to observation time
59	59 <= min < 60 prior to observation time
60	No timing information available
61-62	Reserved
63	Missing value

0-11-217 - SQM

PREPBUFR: Wind speed (SOB) (quality) marker

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-9	Reserved
10	A dropwnsonde wind report is in the vicinity of a tropical storm
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 4 (Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure)

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-7	Reserved
8	Observed surface pressure is > 1100 mb or < 450 mb, or is more than 100 mb above or below model (guess) surface pressure, or an observed pressure on any level is <= 0 mb or more than 100 mb above or below model (guess) pressure at same level, or a non-pressure observation failed a limit check
9	Observation error is missing
10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-9	Reserved
10	An AIREP or PIREP aircraft report is used to generate a superob report
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check, or a wind profiler report failed one or more other checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4	Observation with pre-existing quality marker 0 (keep) is flagged
5	Observation with pre-existing quality marker 1 (good) is flagged
6	Observation with pre-existing quality marker 2 (neutral/default) is flagged
7	Observation with pre-existing quality marker 3 (suspect) is flagged
8-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))
or
= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))
or
= 8 (Virtual temperature/specific humidity processing step "VIRTMP")
or
= 11 (Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs))
or
= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))
or
= 13 (Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program))
or
= 14 (ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

0-11-218 - DFQ

PREPBUFR: Wind direction/speed (DDO/FFO) (quality) marker

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-9	Reserved
10	A dropwnsonde wind report is in the vicinity of a tropical storm
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-7	Reserved
8	Observed surface pressure is > 1100 mb or < 450 mb, or is more than 100 mb above or below model (guess) surface pressure, or an observed pressure on any level is <= 0 mb or more than 100 mb above or below model (guess) pressure at same level, or a non-pressure observation failed a limit check
9	Observation error is missing
10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-9	Reserved
10	An AIREP or PIREP aircraft report is used to generate a superob report
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check, or a wind profiler report failed one or more other checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4	Observation with pre-existing quality marker 0 (keep) is flagged
5	Observation with pre-existing quality marker 1 (good) is flagged
6	Observation with pre-existing quality marker 2 (neutral/default) is flagged
7	Observation with pre-existing quality marker 3 (suspect) is flagged
8-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

0-11-219 - DFP

PREPBUFR: Wind direction/speed (DDO/FFO) event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-11-220 - DFR

PREPBUFR: Wind direction/speed (DDO/FFO) event reason code

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-11-219 - DFP (PREPBUFR: Wind direction/speed (DDO/FFO) event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-11-235 - TRBX

Turbulence index

Code figure	Meaning
0	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.1 m⅔ s⁻¹
1	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
2	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
3	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
4	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
5	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
6	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
7	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
8	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
9	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
10	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
11	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
12	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
13	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
14	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
15	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
16	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
17	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
18	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
19	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
20	Average value of eddy dissipation rate >= 0.5 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
21-62	Reserved
63	Missing value

0-11-236 - TRBX10

Turbulence index for period from 1 minute prior to observation time to observation time

Code figure	Meaning
0	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.1 m⅔ s⁻¹
1	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
2	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
3	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
4	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
5	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
6	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
7	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
8	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
9	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
10	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
11	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
12	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
13	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
14	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
15	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
16	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
17	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
18	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
19	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
20	Average value of eddy dissipation rate >= 0.5 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
21-62	Reserved
63	Missing value

0-11-237 - TRBX21

Turbulence index for period from 2 minutes prior to observation time to 1 minute prior to observation time

Code figure	Meaning
0	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.1 m⅔ s⁻¹
1	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
2	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
3	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
4	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
5	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
6	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
7	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
8	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
9	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
10	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
11	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
12	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
13	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
14	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
15	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
16	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
17	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
18	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
19	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
20	Average value of eddy dissipation rate >= 0.5 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
21-62	Reserved
63	Missing value

0-11-238 - TRBX32

Turbulence index for period from 3 minutes prior to observation time to 2 minute prior to observation time

Code figure	Meaning
0	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.1 m⅔ s⁻¹
1	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
2	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
3	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
4	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
5	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
6	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
7	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
8	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
9	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
10	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
11	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
12	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
13	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
14	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
15	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
16	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
17	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
18	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
19	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
20	Average value of eddy dissipation rate >= 0.5 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
21-62	Reserved
63	Missing value

0-11-239 - TRBX43

Turbulence index for period from 4 minutes prior to observation time to 3 minute prior to observation time

Code figure	Meaning
0	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.1 m⅔ s⁻¹
1	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
2	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.2 and >= 0.1 m⅔ s⁻¹
3	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
4	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
5	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.3 and >= 0.2 m⅔ s⁻¹
6	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
7	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
8	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
9	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.4 and >= 0.3 m⅔ s⁻¹
10	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
11	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
12	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
13	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
14	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value < 0.5 and >= 0.4 m⅔ s⁻¹
15	Average value of eddy dissipation rate < 0.1 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
16	Average value of eddy dissipation rate < 0.2 and >= 0.1 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
17	Average value of eddy dissipation rate < 0.3 and >= 0.2 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
18	Average value of eddy dissipation rate < 0.4 and >= 0.3 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
19	Average value of eddy dissipation rate < 0.5 and >= 0.4 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
20	Average value of eddy dissipation rate >= 0.5 m⅔ s⁻¹, and peak value >= 0.5 m⅔ s⁻¹
21-62	Reserved
63	Missing value

0-11-240 - WQM

PREPBUFR: u-, v-component wind (UOB/VOB) (quality) marker

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-9	Reserved
10	A dropwnsonde wind report is in the vicinity of a tropical storm
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 4 (Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure)

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-7	Reserved
8	Observed surface pressure is > 1100 mb or < 450 mb, or is more than 100 mb above or below model (guess) surface pressure, or an observed pressure on any level is <= 0 mb or more than 100 mb above or below model (guess) pressure at same level, or a non-pressure observation failed a limit check
9	Observation error is missing
10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-9	Reserved
10	An AIREP or PIREP aircraft report is used to generate a superob report
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check, or a wind profiler report failed one or more other checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4	Observation with pre-existing quality marker 0 (keep) is flagged
5	Observation with pre-existing quality marker 1 (good) is flagged
6	Observation with pre-existing quality marker 2 (neutral/default) is flagged
7	Observation with pre-existing quality marker 3 (suspect) is flagged
8-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))
or
= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))
or
= 8 (Virtual temperature/specific humidity processing step "VIRTMP")
or
= 11 (Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs))
or
= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))
or
= 13 (Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program))
or
= 14 (ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM, or a wind profiler report did not pass median and shear checks performed by NOAA/ESRL/GSD
12	Non-profiler observation is on the reject list, or a wind profiler report failed shear check performed by NOAA/ESRL/GSD but passed median check
13	Non-profiler observation failed one or more checks, or a wind profiler report failed median check performed by NOAA/ESRL/GSD but passed shear check
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

0-11-241 - WPC

PREPBUFR: u-, v-component wind (UOB/VOB) event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-11-242 - WRC

PREPBUFR: u-, v-component wind (UOB/VOB) event reason code

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-11-241 - WPC (PREPBUFR: u-, v-component wind (UOB/VOB) event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-12-246 - TQM

PREPBUFR: Temperature (TOB) (quality) marker

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 4 (Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure)

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-7	Reserved
8	Observed surface pressure is > 1100 mb or < 450 mb, or is more than 100 mb above or below model (guess) surface pressure, or an observed pressure on any level is <= 0 mb or more than 100 mb above or below model (guess) pressure at same level, or a non-pressure observation failed a limit check
9	Observation error is missing
10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-9	Reserved
10	An AIREP or PIREP aircraft report is used to generate a superob report
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 8 (Virtual temperature/specific humidity processing step "VIRTMP")

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-7	Reserved
8	A virtual temperature is generated from a specific humidity observation where either the specific humidity has a rejected quality marker other than 9 or 15, or the specific humidity has a rejected quality marker of 9 or 15 and the sensible temperature quality marker is rejected but with a value other than 9 or 15.
9	A virtual temperature is generated from a specific humidity observation where the specific humidity has a rejected quality marker of 9 or 15 and the sensible temperature quality marker is either not rejected or is rejected but with a value of 9 or 15.
10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4	Observation with pre-existing quality marker 0 (keep) is flagged
5	Observation with pre-existing quality marker 1 (good) is flagged
6	Observation with pre-existing quality marker 2 (neutral/default) is flagged
7	Observation with pre-existing quality marker 3 (suspect) is flagged
8-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))
or
= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))
or
= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))
or
= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))
or
= 11 (Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs))
or
= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))
or
= 13 (Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program))
or
= 14 (ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

0-12-247 - TPC

PREPBUFR: Temperature (TOB) event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-12-248 - TRC

PREPBUFR: Temperature (TOB) event reason code

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-12-247 - TPC (PREPBUFR: Temperature (TOB) event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-13-038 - SADF

Superadiabatic indicator

Code figure	Meaning
0	Not superadiabatic
1	Superadiabatic
2	Reserved
3	Missing value

0-13-039 - TERN

Terrain type (ice/snow)

Code figure	Meaning
0	Sea ice
1	Snow on land
2-6	Reserved
7	Missing value

0-13-040 - SFLG

Surface flag

Code figure	Meaning
0	Land
1	Reserved
2	Near coast
3	Ice
4	Possible ice
5	Ocean
6	Coast
7	Inland water (e.g. river, lake, wetland, swamp)
8	Snow cover
9	Sea ice
10	Standing water (e.g. temporary flooding)
11	Snow
12-14	Reserved
15	Missing value

0-13-041 - PGSC

Pasquill-Gifford stability category

Code figure	Meaning
0	Reserved
1	A
2	A - B
3	B
4	B - C
5	C
6	D
7	E
8	F
9	G
10-14	Reserved
15	Missing value

0-13-051 - FRGP

Frequency group, precipitation

Code figure	Meaning
0	Smaller than any value in the 30 year period
1	In the first quintile
2	In the second quintile
3	In the third quintile
4	In the fourth quintile
5	In the fifth quintile
6	Greater than any value in the 30 year period
7-14	Reserved
15	Missing value

0-13-056 - CIPR

Character and intensity of precipitation

Code figure	Meaning
0	No precipitation
1	Light intermittent
2	Moderate intermittent
3	Heavy intermittent
4	Very heavy intermittent
5	Light continuous
6	Moderate continuous
7	Heavy continuous
8	Very heavy continuous
9	Variable - alternatively light and heavy
10-14	Reserved
15	Missing value

0-13-057 - TBEPR

Time of beginning or end of precipitation

Code figure	Meaning
0	No precipitation
1	Within the last hour
2	1 to 2 hours ago
3	2 to 3 hours ago
4	3 to 4 hours ago
5	4 to 5 hours ago
6	5 to 6 hours ago
7	6 to 8 hours ago
8	8 to 10 hours ago
9	More than 10 hours ago
10-14	Reserved
15	Missing value

0-13-194 - INPC

Indicator for inclusion/omission of precipitation

Code figure	Meaning
0	Precipitation data are reported in sections 1 and 3; group 6RRRtR is included in both sections
1	Precipitation data are reported in section 1; group 6RRRtR is included
2	Precipitation data are reported in section 3; group 6RRRtR is included
3	Precipitation data are not reported in either section 1 or 3; group 6RRRtR is omitted (precipitation amount = 0)
4	Precipitation data are not reported in either section 1 or 3; group 6RRRtR is omitted (precipitation amount is not available)
5-6	Reserved
7	Missing value

0-13-209 - TERR

Terrain type

Code figure	Meaning
0	Sea ice
1	Snow on land
2	Reserved
3	Missing value

0-13-228 - SRMK

Snow report remarks

Code figure	Meaning
0	None
1	Snow amount based on estimate
2	Snowfall melted during observation period
3	Snowfall melted as it landed
4-6	Reserved
7	Missing value

0-13-232 - WXTS

Snow precipitation type

Code figure	Meaning
0	No snow
1	Snow
2	Reserved
3	Missing value

0-13-233 - WXTP

Ice pellet precipitation type

Code figure	Meaning
0	No ice pellets
1	Ice pellets
2	Reserved
3	Missing value

0-13-234 - WXTZ

Freezing rain precipitation type

Code figure	Meaning
0	No freezing rain
1	Freezing rain
2	Reserved
3	Missing value

0-13-235 - WXTR

Rain precipitation type

Code figure	Meaning
0	No rain
1	Rain
2	Reserved
3	Missing value

0-13-246 - QQM

PREPBUFR: Specific humidity (quality) marker

When the value of
0-13-247 - QPC (PREPBUFR: Specific humidity event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

When the value of
0-13-247 - QPC (PREPBUFR: Specific humidity event program code)

= 4 (Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure)

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-7	Reserved
8	Observed surface pressure is > 1100 mb or < 450 mb, or is more than 100 mb above or below model (guess) surface pressure, or an observed pressure on any level is <= 0 mb or more than 100 mb above or below model (guess) pressure at same level, or a non-pressure observation failed a limit check, or this is an overland or oceanic clear, partly-cloudy or cloudy satellite (TOVS, GOES, DMSP) temperature sounding report`
9	Observation error is missing, or a moisture observation is above 300 mb
10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-13-247 - QPC (PREPBUFR: Specific humidity event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4	Observation with pre-existing quality marker 0 (keep) is flagged
5	Observation with pre-existing quality marker 1 (good) is flagged
6	Observation with pre-existing quality marker 2 (neutral/default) is flagged
7	Observation with pre-existing quality marker 3 (suspect) is flagged
8-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-13-247 - QPC (PREPBUFR: Specific humidity event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))
or
= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))
or
= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))
or
= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))
or
= 8 (Virtual temperature/specific humidity processing step "VIRTMP")
or
= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))
or
= 11 (Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs))
or
= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))
or
= 13 (Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program))
or
= 14 (ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

0-13-247 - QPC

PREPBUFR: Specific humidity event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-13-248 - QRC

PREPBUFR: Specific humidity event reason code

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-13-247 - QPC (PREPBUFR: Specific humidity event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-13-247 - QPC (PREPBUFR: Specific humidity event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-13-247 - QPC (PREPBUFR: Specific humidity event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-13-247 - QPC (PREPBUFR: Specific humidity event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-13-247 - QPC (PREPBUFR: Specific humidity event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-13-247 - QPC (PREPBUFR: Specific humidity event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-15-025 - TYPO

Type of pollutant

Code figure	Meaning
0	Ozone
1-10	Reserved
11	Fine particulate matter (diameter < 2.5 microns)
12	Fine particulate matter (diameter < 10 microns)
13-14	Reserved
15	Missing value

0-15-195 - AEROTP

Aerosol type land

Code figure	Meaning
0	Mixed
1	Dust
2	Sulfate
3	Smoke
4	Heavy absorbing smoke
5-14	Reserved
15	Missing value

0-15-196 - AFBO

Algorithm flag for best ozone

Code figure	Meaning
0	Skipped (over land or sea)
1	Standard (over land or sea)
2	Adjusted for profile shape (over land or sea)
3	Based on C-pair (331 and 360 mm) (over land or sea)
4-9	Reserved
10	Skipped (over snow or ice)
11	Standard (over snow or ice)
12	Adjusted for profile shape (over snow or ice)
13	Based on C-pair (331 and 360 mm) (over snow or ice)
14-62	Reserved
63	Missing value

0-15-199 - MLST

Microwave Limb Sounder (MLS) status flag

Bit number	Meaning
1	Do not use this profile
2	This profile is questionable
3-4	Reserved
5	This profile may have been affected by high altitude clouds
6	This profile may have been affected by low altitude clouds
7	The GEOS-5 data used for the temperature a priori were unavailable for this profile
8	Reserved
9	Either the retrieval diverged, or too few radiances were available for good retrieval
10	The task retrieving data for this profile crashed (typically a computer failure)
11-17	Reserved
All 18	Missing value

0-19-001 - STMFE1

Type of synoptic feature

Code figure	Meaning
0	Depression or low (extratroplcal)
1	Tropical depression
2	Tropical storm
3	Severe tropical storm
4	Typhoon
5-9	Reserved
10	Dust/sandstorm
11-62	Reserved
63	Missing value

0-19-008 - STMFE8

Vertical extent of circulation

Code figure	Meaning
0	Reserved
1	Shallow (top of circulation below 700 hPa level)
2	Medium (top between 700 hPa and 400 hPa level)
3	Deep (top above 400 hPa level)
4-6	Reserved
7	Missing value

0-19-010 - STMFE10

Method for tracking the centre of synoptic feature

Code figure	Meaning
0	Reserved
1	Minimum value of sea level pressure
2	Maximum value of 850 hPa relative vorticity
3-14	Reserved
15	Missing value

0-19-100 - TIEC

Time interval to calculate the movement of the tropical cyclone

Code figure	Meaning
0-2	Reserved
3	During the preceding 15 minutes
4	During the preceding 30 minutes
5	During the preceding 1 hour
6	During the preceding 2 hours
7	During the preceding 3 hours
8	During the preceding 6 hours
9	During a period of more than 6 hours
10	Undetermined
11-14	Reserved
15	Missing value

0-19-101 - APCE

Accuracy of the position of the centre of the tropical cyclone

Code figure	Meaning
0	Reserved
1	Eye visible on radar scope, accuracy good (within 10 km)
2	Eye visible on radar scope, accuracy fair (within 30 km)
3	Eye visible on radar scope, accuracy poor (within 50 km)
4	Position of the centre within the area covered by the radar scope, determination by means of the spiral-band overlay, accuracy good (within 10 km)
5	Position of the centre within the area covered by the radar scope, determination by means of the spiral-band overlay, accuracy fair (within 30 km)
6	Position of the centre within the area covered by the radar scope, determination by means of the spiral-band overlay, accuracy poor (within 50 km)
7	Position of the centre outside the area covered by the radar scope, extrapolation by means of the spiral-band overlay
8-9	Reserved
10	Accuracy undetermined
11-14	Reserved
15	Missing value

0-19-102 - SDOE

Shape and definition of the eye of the tropical cyclone

Code figure	Meaning
0	Circular
1	Elliptical - the minor axis is at least 3/4 the length of the major axis
2	Elliptical - the minor axis is less than 3/4 the length well defined of the major axis
3	Apparent double eye
4	Other shape
5	Ill defined
6	Undetermined
7	Missing value

0-19-103 - DMAE

Diameter of major axis of the eye of the tropical cyclone

Code figure	Meaning
0	Less than 5 km
1	5 to less than 10 km
2	10 to less than 15 km
3	15 to less than 20 km
4	20 to less than 25 km
5	25 to less than 30 km
6	30 to less than 35 km
7	35 to less than 40 km
8	40 to less than 50 km
9	50 km and greater
10	Undetermined
11-14	Reserved
15	Missing value

0-19-104 - CE30

Change in character of the eye during the 30 minutes

Code figure	Meaning
0	Eye has first become visible during the past 30 minutes
1	No significant change in the characteristics or size of the eye
2	Eye has become smaller with no other significant change in characteristics
3	Eye has become larger with no other significant change in characteristics
4	Eye has become less distinct with no significant change in size
5	Eye has become less distinct and decreased in size
6	Eye has become less distinct and increased in size
7	Eye has become more distinct with no significant change in size
8	Eye has become more distinct and decreased in size
9	Eye has become more distinct and increased in size
10	Change in character and size of eye cannot be determined
11-14	Reserved
15	Missing value

0-19-105 - DOBC

Distance between the end of spiral band and the centre

Code figure	Meaning
0	0 to less than 100 km
1	100 to less than 200 km
2	200 to less than 300 km
3	300 to less than 400 km
4	400 to less than 500 km
5	500 to less than 600 km
6	600 to less than 800 km
7	800 km or more
8-9	Reserved
10	Doubtful or undetermined
11-14	Reserved
15	Missing value

0-19-107 - TIMC

Time interval over which the movement of the tropical cyclone has been calculated

Code figure	Meaning
0	Less than 1 hour
1	1 to less than 2 hours
2	2 to less than 3 hours
3	3 to less than 6 hours
4	6 to less than 9 hours
5	9 to less than 12 hours
6	12 to less than 15 hours
7	15 to less than 18 hours
8	18 to less than 21 hours
9	21 to less than 30 hours
10-14	Reserved
15	Missing value

0-19-108 - AGPC

Accuracy of geographical position of the tropical cyclone

Code figure	Meaning
0	Cyclone centre within 10 km of the transmitted position
1	Cyclone centre within 20 km of the transmitted position
2	Cyclone centre within 50 km of the transmitted position
3	Cyclone centre within 100 km of the transmitted position
4	Cyclone centre within 200 km of the transmitted position
5	Cyclone centre within 300 km of the transmitted position
6	Cyclone centre undetermined
7	Missing value

0-19-109 - MWFC

Mean diameter of the overcast cloud of the tropical cyclone

Code figure	Meaning
0	Less than 1° of latitude
1	1° to less than 2° of latitude
2	2° to less than 3° of latitude
3	3° to less than 4° of latitude
4	4° to less than 5° of latitude
5	5° to less than 6° of latitude
6	6° to less than 7° of latitude
7	7° to less than 8° of latitude
8	8° to less than 9° of latitude
9	9° of latitude or more
10	Undetermined
11-14	Reserved
15	Missing value

0-19-110 - A24C

Apparent 24-hour change in intensity of the tropical cyclone

Code figure	Meaning
0	Much weakening
1	Weakening
2	No change
3	Intensification
4	Strong Intensification
5-8	Reserved
9	Not observed previously
10	Undetermined
11-14	Reserved
15	Missing value

0-19-113 - CPDT

Cloud pattern type of the DT-number

Code figure	Meaning
0	Reserved
1	Curved Band
2	Shear
3	Eye
4	Banding Eye
5	Central Dense Overcast (CDO)
6	Embedded Center
7	Center Cold Cover (CCC)
8-14	Reserved
15	Missing value

0-19-117 - CPPT

Cloud picture type of the PT-number

Code figure	Meaning
0	Reserved
1	A (Curved Band)
2	B (CDO)
3	C (Shear)
4-6	Reserved
7	Missing value

0-19-119 - TFTN

Type of the final T-number

Code figure	Meaning
0	Reserved
1	DT-number
2	PT-number
3	MET-number
4-6	Reserved
7	Missing value

0-20-003 - PRWE

Present weather

Code figure	Meaning
0	Cloud development not observed or not observable
1	Clouds generally dissolving or becoming less developed
2	State of sky on the whole unchanged
3	Clouds generally forming or developing
4	Visibility reduced by smoke, e.g. veldt or forest fires, Industrial smoke or volcanic ashes
5	Haze
6	Widespread dust in suspension in the air, not raised by wind at or near the station at the time of observation
7	Dust or sand raised by wind at or near the station at the time of observation, but no well developed dust whirl(s) or sand whirl(s), and no duststorm or sandstorm seen; or, In the case of sea stations and coastal stations, blowing spray at the station
8	Well developed dust whirl(s) or sand whirl(s) seen at or near the station during the preceding hour or at the same time of observation, but no duststorm or sandstorm
9	Duststorm or sandstorm within sight at the time of observation, or at the station during the preceding hour
10	Mist
11	Patches of shallow fog or ice fog
12	More or less continuous shallow fog or ice fog
13	Lightning visible, no thunder heard
14	Precipitation within sight, not reaching the ground or the surface of the sea
15	Precipitation within sight, reaching the ground or the surface of the sea, but distant, i.e. estimated to be more than 5 km from the station
16	Precipitation within sight, reaching the ground or the surface of the sea, near to, but not at the station
17	Thunderstorm, but no precipitation at the time of observation
18	Squalls, at or within sight of the station during the preceding hour or at the time of observation
19	Funnel cloud(s), at or within sight of the station during the preceding hour or at the time of observation
20	Drizzle (not freezing) or snow grains, not falling as showers
21	Rain (not freezing), not falling as showers
22	Snow, not falling as showers
23	Rain and snow or ice pellets, not falling as showers
24	Freezing drizzle or freezing rain, not falling as showers
25	Shower(s) of rain
26	Shower(s) of snow, or of rain and snow
27	Shower(s) of hail, or of rain and hail
28	Fog or Ice fog
29	Thunderstorm (with or without precipitation)
30	Slight or moderate duststorm or sandstorm, has decreased during the preceding hour
31	Slight or moderate duststorm or sandstorm, no appreciable change during the preceding hour
32	Slight or moderate duststorm or sandstorm, has begun or increased during the preceding hour
33	Severe duststorm or sandstorm, has decreased during the preceding hour
34	Severe duststorm or sandstorm, no appreciable change during the preceding hour
35	Severe duststorm or sandstorm, has begun or increased during the preceding hour
36	Slight or moderate drifting snow, generally low (below eye level)
37	Heavy drifting snow, generally low (below eye level)
38	Slight or moderate drifting snow, generally high (above eye level)
39	Heavy drifting snow, generally high (above eye level)
40	Fog or ice fog at a distance at the time of observation, but not at the station during the preceding hour, the fog or ice fog extending to a level above that of the observer
41	Fog or ice fog in patches
42	Fog or ice fog with sky visible, and has become thinner during the preceding hour
43	Fog or ice fog with sky invisible, and has become thinner during the preceding hour
44	Fog or ice fog with sky visible, and no appreciable change during the preceding hour
45	Fog or ice fog with sky invisible, and no appreciable change during the preceding hour
46	Fog or ice fog with sky visible, and has begun or has become thicker during the preceding hour
47	Fog or ice fog with sky invisible, and has begun or has become thicker during the preceding hour
48	Fog, depositing rime, sky visible
49	Fog, depositing rime, sky invisible
50	Drizzle, not freezing, intermittent, and slight at time of observation
51	Drizzle, not freezing, continuous, and slight at time of observation
52	Drizzle, not freezing, intermittent, and moderate at time of observation
53	Drizzle, not freezing, continuous, and moderate at time of observation
54	Drizzle, not freezing, intermittent, and heavy (dense) at time of observation
55	Drizzle, not freezing, continuous, and heavy (dense) at time of observation
56	Drizzle, freezing, slight
57	Drizzle, freezing, moderate or heavy (dense)
58	Drizzle and rain, slight
59	Drizzle and rain, moderate or heavy
60	Rain, not freezing, intermittent, and slight at time of observation
61	Rain, not freezing, continuous, and slight at time of observation
62	Rain, not freezing, intermittent, and moderate at time of observation
63	Rain, not freezing, continuous, and moderate at time of observation
64	Rain, not freezing, intermittent, and heavy at time of observation
65	Rain, not freezing, continuous, and heavy at time of observation
66	Rain, freezing, slight
67	Rain, freezing, moderate or heavy
68	Rain or drizzle and snow, light
69	Rain or drizzle and snow, moderate or heavy
70	Intermittent snowflakes, slight at time of observation
71	Continuous snowflakes, slight at time of observation
72	Intermittent snowflakes, moderate at time of observation
73	Continuous snowflakes, moderate at time of observation
74	Intermittent snowflakes, heavy at time of observation
75	Continuous snowflakes, heavy at time of observation
76	Diamond dust (with or without fog)
77	Snow grains (with or without fog)
78	Isolated star like snow crystals (with or without fog)
79	Ice pellets
80	Rain shower(s), slight
81	Rain shower(s), moderate or heavy
82	Rain shower(s), violent
83	Shower(s) of rain and snow mixed, slight
84	Shower(s) of rain and snow mixed, moderate or heavy
85	Snow shower(s), slight
86	Snow shower(s), moderate or heavy
87	Shower(s) of snow pellets or small hail, with or without rain or rain and snow mixed - slight
88	Shower(s) of snow pellets or small hail, with or without rain or rain and snow mixed - moderate or heavy
89	Shower(s) of hail, with or without rain or rain and snow mixed, not associated with thunder - slight
90	Shower(s) of hail, with or without rain or rain and snow mixed, not associated with thunder - moderate or heavy
91	Slight rain at time of observation, and thunderstorm during preceding hour but not at time of observation
92	Moderate or heavy rain at time of observation, and thunderstorm during preceding hour but not at time of observation
93	Slight snow, or rain and snow mixed or hail at time of observation, and thunderstorm during preceding hour but not at time of observation
94	Moderate or heavy snow, or rain and snow mixed or hail at time of observation, and thunderstorm during preceding hour but not at time of observation
95	Thunderstorm, slight or moderate, without hail, but with rain and/or snow at time of observation
96	Thunderstorm, slight or moderate, with hail at time of observation
97	Thunderstorm, heavy, without hail, but with rain and/or snow at time of observation
98	Thunderstorm combined with duststorm or sandstorm at time of observation.
99	Thunderstorm, heavy, with hail at time of observation
100	No significant weather observed
101	Clouds generally dissolving or becoming less developed during the past hour
102	State of sky on the whole unchanged during the past hour
103	Clouds generally forming or developing during the past hour
104	Haze or smoke, or dust in suspension in the air, visibility equal to, or greater than, 1 km
105	Haze or smoke, or dust In suspension in the air, visibility less than 1 km
106-109	Reserved
110	Mist
111	Diamond dust
112	Distant lightning
113-117	Reserved
118	Squalls
119	Reserved
120	Fog
121	PRECIPITATION
122	Drizzle (not freezing) or snow grains
123	Rain (not freezing)
124	Snow
125	Freezing drizzle or freezing rain
126	Thunderstorm (with or without precipitation)
127	Blowing OR DRIFTING SNOW OR SAND
128	Blowing or drifting snow or sand, visibility equal to, or greater than, 1 km
129	Blowing or drifting snow or sand, visibility less than 1 km
130	FOG
131	Fog or ice fog in patches
132	Fog or ice fog, has become thinner during the past hour
133	Fog or ice fog, no appreciable change during the past hour
134	Fog or ice fog, has begun or become thicker during the past hour
135	Fog, depositing rime
136-139	Reserved
140	PRECIPITATION
141	Precipitation, slight or moderate
142	Precipitation, heavy
143	Liquid precipitation, slight or moderate
144	Liquid precipitation, heavy
145	Solid precipitation, slight or moderate
146	Solid precipitation, heavy
147	Freezing precipitation, slight or moderate
148	Freezing precipitation, heavy
149	Reserved
150	DRIZZLE
151	Drizzle, not freezing, slight
152	Drizzle, not freezing, moderate
153	Drizzle, not freezing, heavy
154	Drizzle, freezing, slight
155	Drizzle, freezing, moderate
156	Drizzle, freezing, heavy
157	Drizzle and rain, slight
158	Drizzle and rain, moderate or heavy
159	Reserved
160	RAIN
161	Rain, not freezing, slight
162	Rain, not freezing, moderate
163	Rain, not freezing, heavy
164	Rain, freezing, slight
165	Rain, freezing, moderate
166	Rain, freezing, heavy
167	Rain (or drizzle) and snow, slight
168	Rain (or drizzle) and snow, moderate or heavy
169	Reserved
170	SNOW
171	Snow, slight
172	Snow, moderate
173	Snow, heavy
174	Ice pellets, slight
175	Ice pellets, moderate
176	Ice pellets, heavy
177	Snow grains
178	Ice crystals
179	Reserved
180	SHOWER(S) or intermittent PRECIPITATION
181	Rain shower(s) or intermittent rain, slight
182	Rain shower(s) or intermittent rain, moderate
183	Rain shower(s) or intermittent rain, heavy
184	Rain shower(s) or intermittent rain, violent
185	Snow shower(s) or intermittent snow, slight
186	Snow shower(s) or intermittent snow, moderate
187	Snow shower(s) or intermittent snow, heavy
188	Reserved
189	Hail
190	THUNDERSTORM
191	Thunderstorm, slight or moderate, with no precipitation
192	Thunderstorm, slight or moderate, with rain showers and/or snow showers
193	Thunderstorm, slight or moderate, with hail
194	Thunderstorm, heavy, with no precipitation
195	Thunderstorm, heavy, With rain showers and/or snow showers
196	Thunderstorm, heavy, with hail
197-198	Reserved
199	Tornado
200-203	Reserved
204	Volcanic ash suspended In the air aloft
205	Reserved
206	Thick dust haze, visibility less than 1 km
207	Blowing spray at the station
208	Drifting dust (sand)
209	Wall of dust or sand in distance (like haboob)
210	Snow haze
211	Whiteout
212	Reserved
213	Lightning, cloud to surface
214-216	Reserved
217	Dry thunderstorm
218	Reserved
219	Tornado cloud (destructive) at or within sight of the station during preceding hour or at the time of observation
220	Deposition of volcanic ash
221	Deposition of dust or sand
222	Deposition of dew
223	Deposition of wet snow
224	Deposition of soft rime
225	Deposition of hard rime
226	Deposition of hoarfrost
227	Deposition of glaze
228	Deposition of ice crust (ice slick)
229	Reserved
230	Duststorm or sandstorm with temperature below 0 degrees Celsius
231-238	Reserved
239	Blowing snow, impossible to determine whether snow is falling or not
240	Reserved
241	Fog on sea
242	Fog in valleys
243	Arctic or Antarctic sea smoke
244	Steam fog (sea, lake or river)
245	Steam log (land)
246	Fog over ice or snow cover
247	Dense fog, visibility 60-90 m
248	Dense fog, visibility 30-60 m
249	Dense fog, visibility less than 30 m
250	Drizzle, rate of fall less than 0.10 mm h⁻¹
251	Drizzle, rate of fall 0.10-0.19 mm h⁻¹
252	Drizzle, rate of fall 0.20-0.39 mm h⁻¹
253	Drizzle, rate of fall 0.40-0.79 mm h⁻¹
254	Drizzle, rate of fall 0.80-1.59 mm h⁻¹
255	Drizzle, rate of fall 1.60-3.19 mm h⁻¹
256	Drizzle, rate of fall 3.20-6.39 mm h⁻¹
257	Drizzle, rate of fall more 6.40 mm h⁻¹ or more
258	Reserved
259	Drizzle and snow
260	Rain, rate of fall less than 1.0 mm h⁻¹
261	Rain, rate of fall 1.0-1.9 mm h⁻¹
262	Rain, rate of fall 2.0-3.9 mm h⁻¹
263	Rain, rate of fall 4.0-7.9 mm h⁻¹
264	Rain, rate of fall 8.0-15.9 mm h⁻¹
265	Rain, rate of fall 16.0-31.9 mm h⁻¹
266	Rain, rate of fall 32.0-63.9 mm h⁻¹
267	Rain, rate of fall more 64.0 mm h⁻¹ or more
268-269	Reserved
270	Snow, rate of fall less than 1.0 cm h⁻¹
271	Snow, rate of fall 1.0-1.9 cm h⁻¹
272	Snow, rate of fall 2.0-3.9 cm h⁻¹
273	Snow, rate of fall 4.0-7.9 cm h⁻¹
274	Snow, rate of fall 8.0-15.9 cm h⁻¹
275	Snow, rate of fall 16.0-31.9 cm h⁻¹
276	Snow, rate of fall 32.0-63.9 cm h⁻¹
277	Snow, rate of fall more 64.0 cm h⁻¹ or more
278	Snow or Ice crystal precipitation from a clear sky
279	Wet snow, freezing on contact
280	Precipitation of rain
281	Precipitation of rain, freezing
282	Precipitation of rain and snow mixed.
283	Precipitation of snow
284	Precipitation of snow pellets or small hall
285	Precipitation of snow pellets or small hail, with rain
286	Precipitation of snow pellets or small hail, with rain and snow mixed
287	Precipitation of snow pellets or small hail, with snow
288	Precipitation of hail
289	Precipitation of hail, with rain
290	Precipitation of hall, with rain and snow mixed
291	Precipitation of hail, with snow
292	Shower(s) or thunderstorm over sea
293	Shower(s) or thunderstorm over mountains
294-507	Reserved
508	No significant phenomenon to report, present and past weather omitted
509	No observation, data not available, present and past weather omitted
510	Present and past weather missing, but expected
511	Missing value

0-20-004 - PSW1

Past weather (1)

Code figure	Meaning
0	Cloud covering 1/2 or less of the sky throughout the appropriate period
1	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period
2	Cloud covering more than 1/2 of the sky throughout the appropriate period
3	Sandstorm, duststorm or blowing snow
4	Fog or ice fog or thick haze
5	Drizzle
6	Rain
7	Snow, or rain and snow mixed
8	Shower(s)
9	Thunderstorm(s) with or without precipitation
10	No significant weather observed
11	Visibility REDUCED
12	Blowing phenomena, visibility reduced
13	FOG
14	PRECIPITATION
15	Drizzle
16	Rain
17	Snow or ice pellets
18	Showers or intermittent precipitation
19	Thunderstorm
20-30	Reserved
31	Missing value

0-20-005 - PSW2

Past weather (2)

Code figure	Meaning
0	Cloud covering 1/2 or less of the sky throughout the appropriate period
1	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period
2	Cloud covering more than 1/2 of the sky throughout the appropriate period
3	Sandstorm, duststorm or blowing snow
4	Fog or ice fog or thick haze
5	Drizzle
6	Rain
7	Snow, or rain and snow mixed
8	Shower(s)
9	Thunderstorm(s) with or without precipitation
10	No significant weather observed
11	Visibility REDUCED
12	Blowing phenomena, visibility reduced
13	FOG
14	PRECIPITATION
15	Drizzle
16	Rain
17	Snow or ice pellets
18	Showers or intermittent precipitation
19	Thunderstorm
20-30	Reserved
31	Missing value

0-20-006 - FLTR

Flight rules

Code figure	Meaning
0	Low Instrument Flight Rules - Ceiling < 500 feet and/or Visibility < 1 mile
1	Instrument Flight Rules - Ceiling < 1000 feet and/or Visibility < 3 miles
2	Marginal Visual Flight Rules - 1000 feet <= Ceiling < 3000 feet and/or 3 miles <= Visibility < 5 miles
3	Visual Flight Rules - Ceiling >= 3000 feet and/or Visibility >= 5 miles
4-6	Reserved
7	Missing value

0-20-008 - CDFA

Cloud distribution for aviation

Code figure	Meaning
0	Sky Clear
1	Few
2	Scattered
3	Broken
4	Overcast
5	Reserved
6	Scattered/Broken
7	Broken/Overcast
8	Isolated
9	Isolated embedded
10	Occasional
11	Occasional embedded
12	Frequent
13	Dense
14	Layers
15	Obscured (OBSC)
16	Embedded (EMBD)
17	Frequent embedded
18-30	Reserved
31	Missing value

0-20-009 - GWEI

General weather indicator (TAF/METAR)

Code figure	Meaning
0	Reserved
1	NSC Nil Significant Cloud
2	CAVOK
3	SKC Sky Clear
4	NSW Nil Significant Weather
5	NCD No clouds detected
6-14	Reserved
15	Missing value

0-20-011 - CLAM

Cloud amount

Code figure	Meaning
0	0
1	1 okta or less, but not zero
2	2 oktas
3	3 oktas
4	4 oktas
5	5 oktas
6	6 oktas
7	7 oktas or more, but not 8 oktas
8	8 oktas
9	Sky obscured by fog and/or other meteorological phenomena
10	Sky partially obscured by fog and/or other meteorological phenomena
11	Scattered
12	Broken
13	Few
14	Reserved
15	Missing value

0-20-012 - CLTP

Cloud type

Code figure	Meaning
0	Cirrus (Ci)
1	Cirrocumulus (Cc)
2	Cirrostratus (Cs)
3	Altocumulus (Ac)
4	Altostratus (As)
5	Nimbostratus (Ns)
6	Stratocumulus (Sc)
7	Stratus(St)
8	Cumulus (Cu)
9	Cumulonimbus (Cb)
10	No CH clouds
11	Cirrus fibratus, sometimes uncinus, not progressively invading the sky
12	Cirrus spissatus, in patches or entangled sheaves, which usually do not increase and sometimes seem to be the remains of the upper part of a Cumulonimbus; or Cirrus castellanus or floccus
13	Cirrus spissatus cumulonimbogenitus
14	Cirrus uncinus or fibratus, or both, progressively invading the sky; they generally thicken as a whole
15	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively invading the sky; they generally thicken as a whole, but the continuous veil does not reach 45 degrees above the horizon
16	Cirrus (often in bands) and Cirrostratus, or Cirrostratus alone, progressively Invading the sky; they generally thicken as a whole; the continuous veil extends more than 45 degrees above the horizon, without the sky being totally covered
17	Cirrostratus covering the whole sky
18	Cirrostratus not progressively invading the sky and not entirely covering It
19	Cirrocumulus alone, or Cirrocumulus predominant among the CH clouds
20	No CM clouds
21	Altostratus translucidus
22	Altostratus opacus or Nimbostratus
23	Altocumulus translucidus at a single level
24	Patches (often Lenticular) of Altocumulus translucidus, continually changing and occurring at one or more levels
25	Altocumulus translucidus in bands, or one or more layers of Altocumulus translucidus or opacus, progressively Invading the sky;these Altocumulus clouds generally thicken as a whole
26	Altocumulus cumulogenitus (or cumulonimbogenitus)
27	Altocumulus translucidus or opacus In two or more layers, or Altocumulus opacus In a single layer, not progressively Invading the sky, or Altocumulus with Altostratus or Nimbostratus
28	Altocumulus castellanus or floccus
29	Altocumulus of a chaotic sky, generally at several levels
30	No CL clouds
31	Cumulus humilis or Cumulus fractus other than of bad weather, or both
32	Cumulus mediocris or congestus, Towering cumulus (TCU), with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level
33	Cumulonimbus calvus, with or without Cumulus, Stratocumulus or Stratus
34	Stratocumulus cumulogenitus
35	Stratocumulus other than Stratocumulus cumulogenitus
36	Stratus nebulosus or Stratus fractus other than of bad weather, or both
37	Stratus fractus or Cumulus fractus of bad weather, or both (pannus),usually below Altostratus or Nimbostratus
38	Cumulus and Stratocumulus other than Stratocumulus cumulogenitus, with bases at different levels
39	Cumulonimbus capillatus (often with an anvil), with or without Cumulonimbus calvus, Cumulus, Stratocumulus, Stratus or pannus
40	CH
41	CM
42	CL
43	Clear
44	Liquid water
45	Supercooled liquid water
46	Mixed phase
47	Optically thick ice
48	Optically thin ice
49	Multilayered ice
50-58	Reserved
59	Cloud not visible owing to darkness, fog, duststorm, sandstorm, or other analogous phenomena
60	CH clouds Invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena, or because of a continuous layer of lower clouds
61	CM clouds Invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena, or because of continuous layer of lower clouds
62	CL clouds invisible owing to darkness, fog, blowing dust or sand, or other similar phenomena
63	Missing value

0-20-017 - CTDS

Cloud top description

Code figure	Meaning
0	Isolated cloud fragments of clouds
1	Continuous cloud
2	Broken cloud - small breaks, flat tops
3	Broken cloud - large breaks, flat tops
4	Continuous cloud
5	Broken cloud - small breaks, undulating tops
6	Broken cloud - large breaks, undulating tops
7	Continuous or almost continuous waves with towering clouds above the top of the layer
8	Groups of waves with towering clouds above the top of the layer
9	Two or more layers at different levels
10-14	Reserved
15	Missing value

0-20-018 - RWYT

Tendency of runway visual range

Code figure	Meaning
0	Increasing (U)
1	Decreasing (D)
2	No distinct change (N)
3	Missing value

0-20-021 - PRTP

Type of precipitation

Bit number	Meaning
1	Precipitation-unknown type
2	Liquid precipitation not freezing
3	Liquid freezing precipitation
4	Drizzle
5	Rain
6	Solid precipitation
7	Snow
8	Snow grains
9	Snow pellets
10	Ice pellets
11	Ice crystals
12	Diamond dust
13	Small hail
14	Hail
15	Glaze
16	Rime
17	Soft rime
18	Hard rime
19	Clear ice
20	Wet snow
21	Hoar frost
22	Dew
23	White dew
24-29	Reserved
All 30	Missing value

0-20-022 - PRCH

Character of precipitation

Code figure	Meaning
0	No precipitation
1	Continuous
2	Intermittent
3	Shower
4	Not reaching ground
5	Deposition
6-14	Reserved
15	Missing value

0-20-023 - OWEP

Other weather phenomena

Bit number	Meaning
1	Dust/sand whirl
2	Squalls
3	Sand storm
4	Dust storm
5	Lightning - cloud to surface
6	Lightning - cloud to cloud
7	Lightning - distant
8	Thunderstorm
9	Funnel Cloud not touching surface
10	Funnel cloud touching surface
11	Spray
12	Water-spout
13	Wind shear
14	Dust devils
15-17	Reserved
All 18	Missing value

0-20-024 - INTP

Intensity of phenomena

Code figure	Meaning
0	No phenomena
1	Light
2	Moderate
3	Heavy
4	Violent
5	Severe
6	Very severe
7	Missing value

0-20-025 - OBSC

Obscuration

Bit number	Meaning
1	Fog
2	Ice fog
3	Steam fog
4-6	Reserved
7	Mist
8	Haze
9	Smoke
10	Volcanic ash
11	Dust
12	Sand
13	Snow
14	Cloud
15	Precipitation
16	Impossible to determine whether snow is falling or not
17-20	Reserved
All 21	Missing value

0-20-026 - OBCH

Character of obscuration

Code figure	Meaning
0	No change
1	Shallow
2	Patches
3	Partial
4	Freezing
5	Low drifting
6	Blowing
7	Increasing
8	Decreasing
9	In suspension in the air
10	Wall
11	Dense
12	Whiteout
13	Drifting and blowing
14	Reserved
15	Missing value

0-20-027 - PHEO

Phenomena occurrence

Bit number	Meaning
1	At time of observation
2	In past hour
3	In time period for past weather W1W2
4	In time period specified
5	Reserved
6	Below station level
7	At the station
8	In the vicinity
All 9	Missing value

0-20-028 - ECIN

Expected change in intensity

Code figure	Meaning
0	No change (NC)
1	Forecast to weaken (WKN)
2	Forecast to intensify (INTSF)
3-6	Reserved
7	Missing value

0-20-029 - RFLAG

Rain flag

Code figure	Meaning
0	No rain
1	Rain
2	Reserved
3	Missing value

0-20-032 - ROIA

Rate of ice accretion (estimated)

Code figure	Meaning
0	Ice not building up
1	Ice building up slowly
2	Ice building up rapidly
3	Ice melting or breaking up slowly
4	Ice melting or breaking up rapidly
5-6	Reserved
7	Missing value

0-20-033 - COIA

Cause of ice accretion

Bit number	Meaning
1	Icing from ocean spray
2	Icing from fog
3	Icing from rain
All 4	Missing value

0-20-034 - SICE

Sea ice concentration

Code figure	Meaning
0	No sea ice in sight
1	Ship in open lead more than 1.0 nautical mile wide, or ship in fast ice with boundary beyond limit of visibility
2	Sea ice present in concentrations less than 3/10 (3/8) open water or very open pack ice
3	4/10 to 6/10 (3/8 to less than 6/8), open pack ice
4	7/10 to 8/10 (6/8 to less 7/8), close pack ice
5	9/10 or more, but not 10/10 (7/8 to less than 8/8), very close pack ice
6	Strips and patches of pack ice with open water between
7	Strips and patches of close or very close pack ice with areas of lesser concentration between
8	Fast ice with open water, very open or open pack Ice to seaward of the ice boundary
9	Fast ice with close or very close pack ice to seaward of the boundary
10-13	Reserved
14	Unable to report, because of darkness, lack of visibility, or because ship is more than 0.5 nautical mile away from ice edge
15-30	Reserved
31	Missing value

0-20-035 - AICE

Amount and type of ice

Code figure	Meaning
0	No ice of land origin
1	1-5 icebergs, no growlers or bergy bits
2	6-10 icebergs, no growlers or bergy bits
3	11-20 icebergs, no growlers or bergy bits
4	Up to and including 10 growlers and bergy bits - no icebergs
5	More than 10 growlers and bergy bits - no icebergs
6	1-5 icebergs, with growlers and bergy bits
7	6-10 icebergs, with growlers and bergy bits
8	11-20 icebergs, with growlers and bergy bits
9	More than 20 icebergs, with growlers and bergy bits - a major hazard to navigation
10-13	Reserved
14	Unable to report, because of darkness, lack of visibility or because only sea ice is visible
15	Missing value

0-20-036 - ICESI

Ice situation

Code figure	Meaning
0	Ship in open water with floating ice in sight
1	Ship In easily penetrable ice; conditions improving
2	Ship In easily penetrable ice; conditions not changing
3	Ship in easily penetrable ice; conditions worsening
4	Ship in ice difficult to penetrate; conditions improving
5	Ship in ice difficult to penetrate; conditions not changing
6	Ship in ice difficult to penetrate and conditions worsening. Ice forming and floe freezing together
7	Ship in ice difficult to penetrate and conditions worsening. Ice under slight pressure
8	Ship in ice difficult to penetrate and conditions worsening. Ice under moderate or severe pressure
9	Ship in ice difficult to penetrate and conditions worsening. Ship beset
10-29	Reserved
30	Unable to report, because of darkness or lack of visibility
31	Missing value

0-20-037 - ICEDV

Ice development

Code figure	Meaning
0	New ice only (frazil ice, grease ice, slush, shuga)
1	Nilas or ice rind, less than 10 cm thick
2	Young ice (grey ice, grey white ice), 10-30 cm thick
3	Predominantly new and/or young ice with some first year ice
4	Predominantly thin first year ice with some new and/or young ice
5	All thin first year ice (30-70 cm thick)
6	Predominantly medium first year ice (70-120 cm thick) and thick first year ice (>120 cm thick) with some thinner (younger) first year ice
7	All medium and thick first year ice
8	Predominantly medium and thick first year ice with some old ice (usually more than 2 metres thick)
9	Predominantly old ice
10-29	Reserved
30	Unable to report, because of darkness, lack of visibility or because only ice of land origin is visible or because ship is more than 0.5 nautical mile away from ice edge
31	Missing value

0-20-040 - EDRS

Evolution of drift snow

Code figure	Meaning
0	Drift snow ended before the hour of observation
1	Intensity diminishing
2	No change
3	Intensity increasing
4	Continues, apart from interruption lasting less than 30 minutes
5	General drift snow has become drift snow near the ground
6	Drift snow near the ground has become general drift snow
7	Drift snow has started again after an interruption of more than 30 minutes
8-14	Reserved
15	Missing value

0-20-041 - AFIC

Airframe icing

Code figure	Meaning
0	No icing
1	Light icing
2	Light icing In cloud
3	Light icing In precipitation
4	Moderate icing
5	Moderate icing in cloud
6	Moderate icing in precipitation
7	Severe icing
8	Severe icing in cloud
9	Severe icing in precipitation
10	Trace of icing
11	Trace of icing in cloud
12	Trace of icing in precipitation
13-14	Reserved
15	Missing value

0-20-042 - AFICP

Airframe icing present

Code figure	Meaning
0	No icing
1	Icing present
2	Reserved
3	Missing value

0-20-045 - SCLD

Supercooled large droplet (SLD) conditions

Code figure	Meaning
0	No SLD conditions present
1	SLD conditions present
2	Reserved
3	Missing value

0-20-048 - EVFE

Evolution of feature

Code figure	Meaning
0	Stability
1	Diminution
2	Intensification
3	Unknown
4-14	Reserved
15	Missing value

0-20-050 - CLDI

Cloud index

Code figure	Meaning
0	Reserved
1	1st low cloud
2	2nd low cloud
3	3rd low cloud
4	1st medium cloud
5	2nd medium cloud
6	3rd medium cloud
7	1st high cloud
8	2nd high cloud
9-254	Reserved
255	Missing value

0-20-055 - STST

State of sky in the tropics

Code figure	Meaning
0	Cumulus, if any, are quite small; generally less than 2/8 coverage, except on windward slopes of elevated terrain; average width of cloud is at least as great as its vertical thickness
1	Cumulus of intermediate size with cloud cover less than 5/8; average cloud width is more than its vertical thickness; towers are vertical with little or no evidence of precipitation, except along slopes of elevated terrain; a general absence of middle and upper clouds
2	Swelling Cumulus with rapidly growing tall turrets which decrease in size with height and whose tops tend to separate from the longer cloud body and evaporate within minutes of the separation
3	Swelling Cumulus with towers having a pronounced tilt in a downwind direction; vertical cloud thickness is more than one and a half times that of its average width
4	Swelling Cumulus with towers having a pronounced tilt in an upwind direction; vertical cloud thickness is more than one and a half times that of its average width
5	Tall Cumulus congestus with vertical thickness more than twice the average width; not organized in clusters or lines; one or more layers of clouds extend out from the cloud towers, although no continuous cloud layers exist
6	Isolated Cumulonimbus or large clusters of Cumulus turrets separated by wide areas in which clouds are absent; cloud bases are generally dark with showers observed in most cells; some scattered middle and upper clouds may be present; individual Cumulus cells are one to two times higher than they are wide
7	Numerous Cumulus extending through the middle troposphere with broken to overcast sheets of middle clouds and/or Cirrostratus; Cumulus towers do not decrease generally in size with height; ragged dark cloud bases with some showers present
8	Continuous dense middle clouds and/or Cirrostratus cloud sheets with some large isolated Cumulonimbus or Cumulus congestus clouds penetrating these sheets; light rain occasionally observed from the Altostratus; Cumulonimbus bases ragged and dark with showers visible
9	Continuous sheets of middle clouds and/or Cirrostratus with Cumulonimbus and Cumulus congestus in organized lines or cloud bands; rain is generally observed from Altostratus sheets and heavy showers from Cumulonimbus; wind has a squally character
10	State of sky unknown or not described by any of the above
11-14	Reserved
15	Missing value

0-20-056 - CLDP

Cloud phase

Code figure	Meaning
0	Unknown
1	Water
2	Ice
3	Mixed
4	Clear
5	Supercooled liquid water
6	Reserved
7	Missing value

0-20-062 - SOGR

State of the ground (with or without snow)

Code figure	Meaning
0	Surface of ground dry (without cracks and no appreciable amount of dust or loose sand)
1	Surface of ground moist
2	Surface of ground wet (standing water in small or large pools on surface)
3	Flooded
4	Surface of ground frozen
5	Glaze on ground
6	Loose dry dust or sand not covering ground completely
7	Thin cover of loose dry dust or sand covering ground completely
8	Moderate or thick cover of loose dry dust or sand covering ground completely
9	Extremely dry with cracks
10	Ground predominantly covered by ice
11	Compact or wet snow (with or without ice) covering less than one half of the ground
12	Compact or wet snow (with or without ice) covering at least one half of the ground but ground not completely covered
13	Even layer of compact or wet snow covering ground completely
14	Uneven layer of compact or wet snow covering ground completely
15	Loose dry snow covering less than one half of the ground
16	Loose dry snow covering at least one half of the ground (but not completely)
17	Even layer of loose dry snow covering ground completely
18	Uneven layer of loose dry snow covering ground completely
19	Snow covering ground completely; deep drifts
20-30	Reserved
31	Missing value

0-20-063 - PHES

Special phenomena

Code figure	Meaning
0	Reserved
1	Highest wind speed gusts greater than 11.5 m/s
2	Highest wind speed gusts greater than 17.5 m/s
3-6	Reserved
7	Visibility greater than 100000 m
8-9	Reserved
10	Mirage - No specification
11	Mirage - Image of distant object raised (looming)
12	Mirage - Image of distant object raised clear above the horizon
13	Mirage - Inverted image of distant object
14	Mirage - Complex, multiple images of distant object (images not inverted)
15	Mirage - Complex, multiple images of distant object (some images being inverted)
16	Mirage - Sun or moon seen appreciably distorted
17	Mirage - Sun visible, although astronomically below the horizon
18	Mirage - Moon visible, although astronomically below the horizon
19	Reserved
20	Day darkness, bad, worst in direction specified
21	Day darkness, very bad, worst in direction specified
22	Day darkness, black, worst in direction specified
23-30	Reserved
31	Slight coloration of clouds at sunrise associated with a tropical disturbance
32	Deep-red coloration of clouds at sunrise associated with a tropical disturbance
33	Slight coloration of clouds at sunset associated with a tropical disturbance
34	Deep-red coloration of clouds at sunset associated with a tropical disturbance
35	Convergence of CH clouds at a point below 45 degrees forming or increasing and associated with a tropical disturbance
36	Convergence of CH clouds at a point above 45 degrees associated with a tropical disturbance
37	Convergence of CH clouds at a point below 45 degrees dissolving or diminishing and associated with a tropical disturbance
38	Convergence of CH clouds at a point above 45 degrees associated with a tropical disturbance
39	Reserved
40	Hoar frost on horizontal surfaces
41	Hoar frost on horizontal and vertical surfaces
42	Precipitation containing sand or desert dust
43	Precipitation containing volcanic ash
44-49	Reserved
50	Calm or light wind followed by a squall
51	Calm or light wind followed by a succession of squalls
52	Gusty weather followed by a squall
53	Gusty weather followed by a succession of squalls
54	Squall followed by gusty weather
55	General gusty weather with squall at intervals
56	Squall approaching station
57	Line squall
58	Squall with drifting or blowing dust or sand
59	Line squall with drifting or blowing dust or sand
60	Temperature steady
61	Temperature falling, without going below 0 degrees Celsius
62	Temperature rising, without going above 0 degrees Celsius
63	Temperature falling to a value below 0 degrees Celsius
64	Temperature rising to a value above 0 degrees Celsius
65	Irregular variation, oscillations of temperature passing through 0 degrees Celsius
66	Irregular variation, oscillations of temperature not passing through 0 degrees Celsius
67	Variation of temperature not observed
68	Reserved
69	Variation of temperature unknown owing to lack of thermograph
70	Visibility has not varied (sun visible) towards direction specified
71	Visibility has not varied (sun invisible) towards direction specified
72	Visibility has increased (sun visible) towards direction specified
73	Visibility has increased (sun invisible) towards direction specified
74	Visibility has decreased (sun visible) towards direction specified
75	Visibility has decreased (sun invisible) towards direction specified
76	Fog coming from direction specified
77	Fog has lifted, without dissipating
78	Fog has dispersed without regard to direction
79	Moving patches or banks of fog
80	Brocken spectre
81	Rainbow
82	Solar or lunar halo
83	Parhelia or anthelia
84	Sun pillar
85	Corona
86	Twilight glow
87	Twilight glow on the mountains
88	Mirage
89	Zodiacal light
90	St. Elmos fire
91-1022	Reserved
1023	Missing value

0-20-071 - AFRA

Accuracy of fix and rate of atmospherics

Code figure	Meaning
0	No assessment
1	Accuracy less than 50 km, and rate less than 1 per second
2	Accuracy between 50 and 200 km, and rate less than 1 per second
3	Accuracy more than 200 km, and rate less than 1 per second
4	Accuracy less than 50 km, and rate 1 or more per second
5	Accuracy between 50 and 200 km, and rate 1 or more per second
6	Accuracy more than 200 km, and rate 1 or more per second
7	Accuracy less than 50 km, and rate too rapid to count
8	Accuracy between 50 and 200 km, and rate too rapid to count
9	Accuracy more than 200 km, and rate too rapid to count
10-14	Reserved
15	Missing value

0-20-079 - SICI

Snow or ice crystals indicator

Code figure	Meaning
0	No snow or ice
1	Snow present
2	Reserved
3	Missing value

0-20-085 - GCRW

General condition of runway

Code figure	Meaning
0	Cleared (CLRD//)
1	All runways closed (SNOCLO)
2-14	Reserved
15	Missing value

0-20-086 - RWDP

Runway deposits

Code figure	Meaning
0	Clear and dry
1	Damp
2	Wet with water patches
3	Rime and frost covered (depth normally less than 1 mm)
4	Dry snow
5	Wet snow
6	Slush
7	Ice
8	Compacted or rolled snow
9	Frozen ruts or ridges
10-14	Reserved
15	Missing value

0-20-087 - RWCT

Runway contamination

Code figure	Meaning
0	Reserved
1	Less than 10% of runway covered
2	11% to 25% of runway covered
3-4	Reserved
5	26% to 50% of runway covered
6-8	Reserved
9	51% to 100% of runway covered
10-14	Reserved
15	Missing value

0-20-089 - RWFC

Runway friction coefficient

Code figure	Meaning
0	0.00
1	0.01
2	0.02
3	0.03
4	0.04
5	0.05
6	0.06
7	0.07
8	0.08
9	0.09
10	0.10
11	0.11
12	0.12
13	0.13
14	0.14
15	0.15
16	0.16
17	0.17
18	0.18
19	0.19
20	0.20
21	0.21
22	0.22
23	0.23
24	0.24
25	0.25
26	0.26
27	0.27
28	0.28
29	0.29
30	0.30
31	0.31
32	0.32
33	0.33
34	0.34
35	0.35
36	0.36
37	0.37
38	0.38
39	0.39
40	0.40
41	0.41
42	0.42
43	0.43
44	0.44
45	0.45
46	0.46
47	0.47
48	0.48
49	0.49
50	0.50
51	0.51
52	0.52
53	0.53
54	0.54
55	0.55
56	0.56
57	0.57
58	0.58
59	0.59
60	0.60
61	0.61
62	0.62
63	0.63
64	0.64
65	0.65
66	0.66
67	0.67
68	0.68
69	0.69
70	0.70
71	0.71
72	0.72
73	0.73
74	0.74
75	0.75
76	0.76
77	0.77
78	0.78
79	0.79
80	0.80
81	0.81
82	0.82
83	0.83
84	0.84
85	0.85
86	0.86
87	0.87
88	0.88
89	0.89
90	0.90
91	Braking action poor
92	Braking action medium to poor
93	Braking action medium
94	Braking action medium to good
95	Braking action good
96-98	Reserved
99	Unreliable
100-126	Reserved
127	Missing value

0-20-090 - SPCL

Special clouds

Code figure	Meaning
0	Reserved
1	Nacreous clouds
2	Noctilucent clouds
3	Clouds from waterfalls
4	Clouds from fires
5	Clouds from volcanic eruptions
6-14	Reserved
15	Missing value

0-20-101 - LONA

Locust (acridian) name

Code figure	Meaning
0	Reserved
1	Schistocerca gregaria
2	Locusta migratoria
3	Nomadacris septemfasciata
4	Oedaleus senegalensis
5	Anracridium spp
6	Other locusts
7	Other grasshoppers
8	Other crickets
9	Spodoptera exempt
10-14	Reserved
15	Missing value

0-20-102 - LOCO

Locust (maturity) colour

Code figure	Meaning
0	Green
1	Green or black
2	Black
3	Yellow and black
4	Straw/grey
5	Pink
6	Dark red/brown
7	Mixed red and yellow
8	Yellow
9	Other
10-14	Reserved
15	Missing value

0-20-103 - SDLO

Stage of development of locusts

Code figure	Meaning
0	Hoppers (nymphs, larvae), stage 1
1	Hoppers (nymphs, larvae), stage 2 or mixed 1, 2 instars (stages)
2	Hoppers (nymphs, larvae), stage 3 or mixed 2, 3 instars
3	Hoppers (nymphs, larvae), stage 4 or mixed 3, 4 instars
4	Hoppers (nymphs, larvae), stage 5 or mixed 4, 5 instars
5	Hoppers (nymphs, larvae), stage mixed, all or many instars
6	Fledglings (wings too soft for sustained flight)
7	Immature adults
8	Mixed maturity adults
9	Mature adults
10-14	Reserved
15	Missing value

0-20-104 - OSLO

Organization state of swarm or band of locusts

Code figure	Meaning
0	Hoppers only, mainly in bands or clusters
1	Winged adults in the vicinity more than 10 kilometres from point of observation
2	Locusts in flight, a few seen at the station
3	Locusts at the station, most of them on the ground
4	Locusts, some on ground and others in flight at a height less than 10 metres
5	Locusts, some on ground and others in flight at a height greater than 10 metres
6	Locusts, most in flight at a height less than 10 metres
7	Locusts, most in flight at a height greater than 10 metres
8	Locusts, all over inflicting severe damage to vegetation, no extermination operation
9	Locusts, all over inflicting severe damage to vegetation, extermination operation in progress
10-14	Reserved
15	Missing value

0-20-105 - SSLO

Size of swarm or band of locusts and duration of passage of swarm

When the value of
0-20-104 - OSLO (Organization state of swarm or band of locusts)

= 0 (Hoppers only, mainly in bands or clusters)

Code figure	Meaning
0	Reserved
1	Area covered by isolated bands < 10 m²
2	Area covered by isolated bands 10-100 m²
3	Area covered by isolated bands 100-1000 m²
4	Area covered by isolated bands 1000-10000 m²
5	Area covered by isolated bands 1-10 ha
6	Area covered by isolated bands > 10 ha
7	Area covered by dispersed bands < 100 km²
8	Area covered by dispersed bands 100-1000 km²
9	Area covered by dispersed bands > 1000 km²
10-14	Reserved
15	Missing value

When the value of
0-20-104 - OSLO (Organization state of swarm or band of locusts)

= 7 (Locusts, most in flight at a height greater than 10 metres)
or
= 5 (Locusts, some on ground and others in flight at a height greater than 10 metres)
or
= 9 (Locusts, all over inflicting severe damage to vegetation, extermination operation in progress)
or
= 6 (Locusts, most in flight at a height less than 10 metres)
or
= 4 (Locusts, some on ground and others in flight at a height less than 10 metres)
or
= 8 (Locusts, all over inflicting severe damage to vegetation, no extermination operation)
or
= 2 (Locusts in flight, a few seen at the station)
or
= 3 (Locusts at the station, most of them on the ground)
or
= 1 (Winged adults in the vicinity more than 10 kilometres from point of observation)

Code figure	Meaning
0	Small swarm less than 1 km² or adults in ground, tens or hundreds of individuals visible simultaneously, duration of passage less than 1 hour ago
1	Small swarm less than 1 km² or adults in ground, tens or hundreds of individuals visible simultaneously, duration of passage 1 to 6 hours ago
2	Small swarm less than 1 km² or adults in ground, tens or hundreds of individuals visible simultaneously, duration of passage over 6 hours ago
3	Medium swarm or scattered adults, several visible simultaneously, duration of passage less than 1 hour ago
4	Medium swarm or scattered adults, several visible simultaneously, duration of passage 1 to 6 hours ago
5	Medium swarm or scattered adults, several visible simultaneously, duration of passage over 6 hours ago
6	Large swarm or isolated adults, seen singly, duration of passage less than 1 hour ago
7	Large swarm or isolated adults, seen singly, duration of passage 1 to 6 hours ago
8	Large swarm or isolated adults, seen singly, duration of passage over 6 hours ago
9	More than one swarm of locusts
10	Size of swarm and/or duration of passage not determined owing to darkness or similar phenomena
11-14	Reserved
15	Missing value

0-20-106 - LOPD

Locust population density

Code figure	Meaning
0	Reserved
1	Thin density swarm (swarm visible only when near enough for individual locusts to be discerned)
2	Medium density swarm
3	Dense swarm (obscuring nearby features, e.g. trees)
4	Isolated hoppers seen singly
5	Scattered hoppers, several visible simultaneously
6-14	Reserved
15	Missing value

0-20-107 - DMLO

Direction of movements of locust swarm

Code figure	Meaning
0	Reserved
1	Generally in the direction NE
2	Generally in the direction E
3	Generally in the direction SE
4	Generally in the direction S
5	Generally in the direction SW
6	Generally in the direction W
7	Generally in the direction NW
8	Generally in the direction N
9	Specific direction indeterminable
10-14	Reserved
15	Missing value

0-20-108 - EXTV

Extent of vegetation

Code figure	Meaning
0	Bare ground
1	Dry, presence of few and isolated shrubs
2	Sparse vegetation (sprouting)
3	Dense vegetation (sprouting)
4	Sparse vegetation (growing)
5	Dense vegetation (growing)
6	Sparse vegetation in flower
7	Dense vegetation in flower
8-14	Reserved
15	Missing value

0-20-119 - PLRTS

Lightning discharge polarity

Code figure	Meaning
0	Not defined
1	Positive
2	Negative
3	Missing value

0-20-124 - LSOR

Lightning stroke or flash

Code figure	Meaning
0	Not defined
1	Lightning stroke
2	Lightning flash, by manual observation, or if equipment insensitive to stroke resolution
3	Missing value

0-20-136 - SUCT

Supplementary cloud type

Code figure	Meaning
0	Isolated cumulus humilis and/or cumulus mediocris of vertical development
1	Numerous cumulus humilis and/or cumulus mediocris of vertical development
2	Isolated cumulus congestus of vertical development
3	Numerous cumulus congestus of vertical development
4	Isolated cumulonimbus of vertical development
5	Numerous cumulonimbus of vertical development
6	Isolated cumulus and cumulonimbus of vertical development
7	Numerous cumulus and cumulonimbus of vertical development
8-10	Reserved
11	Isolated orographic clouds, pileus, incus, forming
12	Isolated orographic clouds, pileus, incus, not changing
13	Isolated orographic clouds, pileus, incus, dissolving
14	Irregular banks of orographic cloud, föhn bank, etc., forming
15	Irregular banks of orographic cloud, föhn bank, etc., not changing
16	Irregular banks of orographic cloud, föhn bank, etc., dissolving
17	Compact layer of orographic cloud, föhn bank, etc., forming
18	Compact layer of orographic cloud, föhn bank, etc., not changing
19	Compact layer of orographic cloud, föhn bank, etc., dissolving
20	All mountains open, only small amounts of cloud present
21	Mountains partly covered with detached clouds (not more than half the peaks can be seen)
22	All mountains slopes covered, peaks and passes free
23	Mountains open on observer's side (only small amounts of cloud present), but a continuous wall of cloud on the other side
24	Clouds low above the mountains, but all slopes and mountains open (only small amounts of cloud on the slopes)
25	Clouds low above the mountains, peaks partly covered by precipitation trails or clouds
26	All peaks covered but passes open, slopes either open or covered
27	Mountains generally covered but some peaks free, slopes wholly or partially covered
28	All peaks, passes and slopes covered
29	Mountains cannot be seen owing to darkness, fog, snowstorm, precipitation, etc.
30-34	Reserved
35	Non-persistent condensation trails
36	Persistent condensation trails covering less than 1/8 of the sky
37	Persistent condensation trails covering 1/8 of the sky
38	Persistent condensation trails covering 2/8 of the sky
39	Persistent condensation trails covering 3/8 or more of the sky
40	No cloud or mist observed from a higher level
41	Mist, clear above observed from a higher level
42	Fog patches observed from a higher level
43	Layer of slight fog observed from a higher level
44	Layer of thick fog observed from a higher level
45	Some isolated clouds observed from a higher level
46	Isolated clouds and fog below observed from a higher level
47	Many isolated clouds observed from a higher level
48	Sea of isolated clouds observed from a higher level
49	Bad visibility obscuring the downward view observed from a higher level
50-510	Reserved
511	Missing value

0-20-137 - EVOC

Evolution of clouds

Code figure	Meaning
0	No change
1	Cumulification
2	Slow elevation
3	Rapid elevation
4	Elevation and stratification
5	Slow lowering
6	Rapid lowering
7	Stratification
8	Stratification and lowering
9	Rapid change
10-14	Reserved
15	Missing value

0-20-138 - ROADSC

Road surface condition

Code figure	Meaning
0	Dry
1	Moist
2	Wet
3	Rime
4	Snow
5	Ice
6	Glaze
7	Not dry
8-14	Reserved
15	Missing value

0-20-139 - FCMA

Final cloud model assumption

Code figure	Meaning
0	Clear
1	Single layer water
2	Single layer ice
3	2-layers (water/ice)
4	Single layer ash
5	2-layers ash
6-14	Reserved
15	Missing value

0-20-143 - LQCL

Liquid cloud

Code figure	Meaning
0	No liquid cloud
1	Liquid cloud present
2	Reserved
3	Missing value

0-20-199 - CLAVR

Clouds from AVHRR cloud mask

Code figure	Meaning
0	Clear
1	Probably clear
2	Probably cloudy
3	Cloudy
4-6	Reserved
7	Missing value

0-20-201 - HBLCS

Height above surface of the base of the lowest cloud seen

Code figure	Meaning
0	0 to 50 meters
1	50 to 100 meters
2	100 to 200 meters
3	200 to 300 meters
4	300 to 600 meters
5	600 to 1000 meters
6	1000 to 1500 meters
7	1500 to 2000 meters
8	2000 to 2500 meters
9	2500 meters or more, no clouds
10-13	Reserved
14	Height of base of cloud not known, or base of clouds at a level lower and tops at a level higher than that of the station
15	Missing value

0-20-209 - ICAG

SSM/I ice age

Code figure	Meaning
0	First year ice
1	Multiyear ice
2	Reserved
3	Missing value

0-20-210 - ICED

SSM/I ice edge

Code figure	Meaning
0	No edge present
1	Edge present
2	Reserved
3	Missing value

0-20-216 - SFTP

SSM/I calculated surface type

Code figure	Meaning
0	Reserved
1	Vegetation
2	Reserved
3	Ice
4	Reserved
5	Ocean
6	Coast
7	Flooded condition
8	Dense vegetation
9	Dense agricultural crops
10	Dry arable soil
11	Moist soil
12	Semi-arid surface
13	Desert
14	Precipitation over vegetation
15	Precipitation over soil
16	Composite vegetation-water
17	Composite soil-water-wet soil
18	Dry snow
19	Wet snow
20	Refrozen snow
21-30	Reserved
31	Missing value

0-20-217 - SFTG

SSM/I surface tag

Code figure	Meaning
0	Land
1	Vegetation-covered land
2	Near coast
3	Multiyear ice
4	Possible ice
5	Ocean
6	Coast
7	Missing value

0-20-218 - SFTG85

Surface tag for SSM/I 85 GHz brightness temperature data

Code figure	Meaning
0	Land
1	Vegetation-covered land
2	Near coast
3	Multiyear ice
4	Possible ice
5	Ocean
6	Coast
7	Missing value

0-20-219 - WSST

WindSat surface type

Code figure	Meaning
0	Land
1	Reserved
2	Near coast
3	Ice
4	Possible ice
5	Ocean
6	Coast
7	Missing value

0-20-222 - RDST

Road state

Code figure	Meaning
0	No report
1	Dry
2	Moist
3	Moist and chemically treated
4	Wet
5	Wet and chemically treated
6	Ice
7	Frost
8	Snow
9	Snow/Ice watch
10	Snow/Ice warning
11	Wet above freezing
12	Wet below freezing
13	Absorption
14	Absorption at dewpoint
15	Dew
16	Black ice warning
17	Othe
18	Slush
19-30	Reserved
31	Missing value

0-20-246 - CTPQM

PREPBUFR: Cloud top pressure (quality) marker

When the value of
0-20-247 - CTPPC (PREPBUFR: Cloud top pressure event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-14	Reserved
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

When the value of
0-20-247 - CTPPC (PREPBUFR: Cloud top pressure event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))
or
= 4 (Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure)
or
= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))
or
= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))
or
= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))
or
= 8 (Virtual temperature/specific humidity processing step "VIRTMP")
or
= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))
or
= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))
or
= 11 (Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs))
or
= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))
or
= 13 (Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program))
or
= 14 (ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-30	Reserved
31	Missing value

0-20-247 - CTPPC

PREPBUFR: Cloud top pressure event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-20-248 - CTPRC

PREPBUFR: Cloud top pressure event reason code

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-20-247 - CTPPC (PREPBUFR: Cloud top pressure event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-20-247 - CTPPC (PREPBUFR: Cloud top pressure event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-20-247 - CTPPC (PREPBUFR: Cloud top pressure event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-20-247 - CTPPC (PREPBUFR: Cloud top pressure event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-20-247 - CTPPC (PREPBUFR: Cloud top pressure event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-20-247 - CTPPC (PREPBUFR: Cloud top pressure event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-21-026 - ASGU2

ASCAT sigma-0 usability

Code figure	Meaning
0	Nominal
1	Close to nominal
2	Far from nominal
3-6	Reserved
7	Missing value

0-21-066 - WSPC

Wave scatterometer product confidence data

Bit number	Meaning
1	Process equipment not working
2	Equipment failed
3	PRF code changed during image generation
4	Sampling window changed during image generation
5	Gain changed during image generation
6	Chirp replica exceeds specified values
7	Input data mean and standard deviation of in-phase and quadrature out of range
8	Doppler centroid confidence > MMCC value
9	Doppler centroid absolute value > PRF/2
10	Doppler ambiguity confidence < MMCC value
11	Output data mean and standard deviation =< MMCC value
All 12	Missing value

0-21-067 - WSPC2

Wind product confidence data

Bit number	Meaning
1	No forebeam calculation
2	No midbeam calculation
3	No aftbeam calculation
4	Forebeam arcing detected
5	Midbeam arcing detected
6	Aftbeam arcing detected
7	Any beam noise content above or equal to threshold
8	Land (any land in cell footprint)
9	Autonomous ambiguity removal not used
10	Meteorological background not used
11	Minimum residual exceeded threshold
12	Frame checksum error detected
All 13	Missing value

0-21-068 - RAPC

Radar altimeter product confidence data

Bit number	Meaning
1	Standard deviation of wind speed outside MMCC limit
2	Standard deviation of significant wave height outside MMCC limit
3	Standard deviation of altitude outside MMCC limit
4	Mean peakiness outside MMCC limit
5	Frame checksum error detected
6	Height-time loop time constant correction not performed
7	Not enough measurements (N<10)
All 8	Missing value

0-21-069 - SSPC

SST product confidence data

Bit number	Meaning
1	12.0 µm channel present in source data
2	11.0 µm channel present in source data
3	3.7 µm channel present in source data
4	1.6 µm channel present in source data
5	Cloud identification used 1.6 um histogram reflectance cloud test
6	1.6 µm histogram reflectance cloud test used dynamic threshold
7	Sun glint detected by 1.6 um reflectance cloud test
8	3.7 µm channel used in sea surface temperature retrieval
9	Sea surface temperature derivation used day-time data (night time if zero)
All 10	Missing value

0-21-070 - SSPC2

SST product confidence data (SADIST-2)

Bit number	Meaning
1	Cell 1 (SW): nadir-only view SST used 3.7 micron channel
2	Cell 2 (S): nadir-only view SST used 3.7 micron channel
3	Cell 3 (SE): nadir-only view SST used 3.7 micron channel
4	Cell 4 (W): nadir-only view SST used 3.7 micron channel
5	Cell 5 (CTR): nadir-only view SST used 3.7 micron channel
6	Cell 6 (E): nadir-only view SST used 3.7 micron channel
7	Cell 7 (NW): nadir-only view SST used 3.7 micron channel
8	Cell 8 (N): nadir-only view SST used 3.7 micron channel
9	Cell 9 (NE): nadir-only view SST used 3.7 micron channel
10	Cell 1 (SW): dual view SST used 3.7 micron channel
11	Cell 2 (S): dual view SST used 3.7 micron channel
12	Cell 3 (SE): dual view SST used 3.7 micron channel
13	Cell 4 (W): dual view SST used 3.7 micron channel
14	Cell 5 (CTR): dual view SST used 3.7 micron channel
15	Cell 6 (E): dual view SST used 3.7 micron channel
16	Cell 7 (NW): dual view SST used 3.7 micron channel
17	Cell 8 (N): dual view SST used 3.7 micron channel
18	Cell 9 (NE): dual view SST used 3.7 micron channel
19	Nadir view contains day-time data (night if zero)
20	Forward view contains day-time data (night if zero)
21	Record contains contributions from instrument scans acquired when ERS platform not in yaw-steering mode
22	Record contains contributions from instrument scans for which Product Confidence Data show quality is poor or unknown
All 23	Missing value

0-21-072 - SACS

Satellite altimeter calibration status

Bit number	Meaning
1	Height error correction applied instead of open loop calibration
2	Microwave sounder used for troposphere correction
3	AGC output correction applied instead of open loop calibration
All 4	Missing value

0-21-073 - SAIM

Satellite altimeter instrument mode

Bit number	Meaning
1	Blank data record
2	Test
3	Calibration (closed loop)
4	BITE
5	Acquisition on ice
6	Acquisition on ocean
7	Tracking on ice
8	Tracking on ocean
All 9	Missing value

0-21-076 - REIN

Representation of intensities

Code figure	Meaning
0	Linear
1	Logarithmic (base e)
2	Logarithmic (base 10)
3-6	Reserved
7	Missing value

0-21-109 - SWVQ

SEAWINDS wind vector cell quality

Bit number	Meaning
1	Not enough good sigma-0 available for wind retrieval
2	Poor azimuth diversity among sigma-0 for wind retrieval
3-7	Reserved
8	Some portion of wind vector cell is over land
9	Some portion of wind vector cell is over ice
10	Wind retrieval not performed for wind vector cell
11	Reported wind speed is greater than 30 m s⁻¹
12	Reported wind speed is less than or equal to 3 m s⁻¹
13-16	Reserved
All 17	Missing value

0-21-115 - SSQU

SEAWINDS sigma-0 quality

Bit number	Meaning
1	Sigma-0 measurement is not usable
2	Signal to noise ratio is low
3	Sigma-0 is negative
4	Sigma-0 is outside of acceptable range
5	Scatterometer pulse quality is not acceptable
6	Sigma-0 cell location algorithm does not converge
7	Frequency shift lies beyond the range of the x factor table
8	Spacecraft temperature is beyond calibration coefficient range
9	No applicable altitude records were found for this sigma-0
10	Interpolated ephemeris data are not acceptable for this sigma-0
11-16	Reserved
All 17	Missing value

0-21-116 - SSMD

SEAWINDS sigma-0 mode

Bit number	Meaning
1	Calibration/measurement pulse flag (1)
2	Calibration/measurement pulse flag (2)
3	Outer antenna beam
4	Sigma-0 cell is aft of spacecraft
5	Current mode (1)
6	Current mode (2)
7	Effective gate width - slice resolution (1)
8	Effective gate width - slice resolution (2)
9	Effective gate width - slice resolution (3)
10	Low resolution mode - whole pulse data
11	Scatterometer electronic subsystem B
12	Alternate spin rate - 19.8 rpm
13	Receiver protection on
14	Slices per composite flag (1)
15	Slices per composite flag (2)
16	Slices per composite flag (3)
All 17	Missing value

0-21-119 - WSGF

Wind scatterometer geophysical model function

Code figure	Meaning
0	Reserved
1	SASS
2	SASS2
3	NSCAT0
4	NSCAT1
5	NSCAT2
6	QSCAT0
7	QSCAT1
8-30	Reserved
31	CMOD1
32	CMOD2
33	CMOD3
34	CMOD4
35	CMOD5
36-62	Reserved
63	Missing value

0-21-144 - ALRF

Altimeter rain flag

Bit number	Meaning
1	Rain
All 2	Missing value

0-21-148 - TEVF

Trailing edge variation flag

Bit number	Meaning
1	No short scale variation
2	Short scale variation
3-8	Reserved
All 9	Missing value

0-21-150 - BEAMC

Beam co-location

Code figure	Meaning
0	Data from single ground station (no co-location)
1	Data from multiple ground station (co-located data)
2	Reserved
3	Missing value

0-21-155 - WVCQ

Wind vector cell quality

Bit number	Meaning
1	Not enough good sigma-0 available for wind retrieval
2	Poor azimuth diversity among sigma-0 for wind retrieval
3	Any beam noise content above threshold
4	Product monitoring not used
5	Product monitoring flag
6	KNMI quality control fails
7	Variational quality control fails
8	Some portion of wind vector cell is over land
9	Some portion of wind vector cell is over ice
10	Wind retrieval not performed for wind vector cell
11	Reported wind speed is greater than 30 m s⁻¹
12	Reported wind speed is less than or equal to 3 m s⁻¹
13	Rain flag for the wind vector cell is not usable
14	Rain flag algorithm detects rain
15	No meteorological background used
16	Data are redundant
17-23	Reserved
All 24	Missing value

0-21-158 - AKPEQ

ASCAT Kp estimate quality

Code figure	Meaning
0	Acceptable
1	Not acceptable
2	Reserved
3	Missing value

0-21-159 - ASGU

ASCAT sigma-0 usability

Code figure	Meaning
0	Good
1	Usable
2	Bad
3	Missing value

0-21-169 - IPIN

Ice presence indicator

Code figure	Meaning
0	No ice present
1	Ice present
2	Reserved
3	Missing value

0-22-056 - DIPR

Direction of profile

Code figure	Meaning
0	Upwards profile
1	Downwards profile
2	Horizontal
3	Missing value

0-22-060 - LDDS

Lagrangian drifter drogue status

Code figure	Meaning
0	Drogue is detached
1	Drogue is attached
2	Drogue status unknown
3-6	Reserved
7	Missing value

0-22-061 - SEST

State of the sea

Code figure	Meaning
0	Calm (glassy, no waves)
1	Calm (rippled, wave height < 0.1 m)
2	Smooth (wavelets, wave height 0.1-0.5 m)
3	Slight (wave height 0.5-1.25 m)
4	Moderate (wave height 1.25-2.5 m)
5	Rough (wave height 2.5-4 m)
6	Very rough (wave height 4-6 m)
7	High (wave height 6-9 m)
8	Very high (wave height 9-14 m)
9	Phenomenal (wave height > 14 m)
10-14	Reserved
15	Missing value

0-22-067 - IWTEMP

Instrument type for water temperature/salinity profile measurement

Code figure	Meaning
0	Reserved
1	Sippican T-4 (fall rate equation coefficients: a = 6.472, b = -2.16)
2	Sippican T-4 (fall rate equation coefficients: a = 6.691, b = -2.25)
3-10	Reserved
11	Sippican T-5 (fall rate equation coefficients: a = 6.828, b = -1.82)
12-20	Reserved
21	Sippican Fast Deep (fall rate equation coefficients: a = 6.346, b = -1.82)
22-30	Reserved
31	Sippican T-6 (fall rate equation coefficients: a = 6.472, b = -2.16)
32	Sippican T-6 (fall rate equation coefficients: a = 6.691, b = -2.25)
33-40	Reserved
41	Sippican T-7 (fall rate equation coefficients: a = 6.472, b = -2.16)
42	Sippican T-7 (fall rate equation coefficients: a = 6.691, b = -2.25)
43-50	Reserved
51	Sippican Deep Blue (fall rate equation coefficients: a = 6.472, b = -2.16)
52	Sippican Deep Blue (fall rate equation coefficients: a = 6.691, b = -2.25)
53-60	Reserved
61	Sippican T-10 (fall rate equation coefficients: a = 6.301, b = -2.16)
62-70	Reserved
71	Sippican T-11 (fall rate equation coefficients: a = 1.7779, b = -0.255)
72-80	Reserved
81	Sippican AXBT (300 m probes) (fall rate equation coefficients: a = 1.52, b = 0.0)
82-200	Reserved
201	TSK T-4 (fall rate equation coefficients: a = 6.472, b = -2.16)
202	TSK T-4 (fall rate equation coefficients: a = 6.691, b = -2.25)
203-210	Reserved
211	TSK T-6 (fall rate equation coefficients: a = 6.472, b = -2.16)
212	TSK T-6 (fall rate equation coefficients: a = 6.691, b = -2.25)
213-220	Reserved
221	TSK T-7 (fall rate equation coefficients: a = 6.472, b = -2.16)
222	TSK T-7 (fall rate equation coefficients: a = 6.691, b = -2.25)
223-230	Reserved
231	TSK T-5 (fall rate equation coefficients: a = 6.828, b = -1.82)
232-240	Reserved
241	TSK T-10 (fall rate equation coefficients: a = 6.301, b = -2.16)
242-250	Reserved
251	TSK Deep Blue (fall rate equation coefficients: a = 6.472, b = -2.16)
252	TSK Deep Blue (fall rate equation coefficients: a = 6.691, b = -2.25)
253-260	Reserved
261	TSK AXBT
262-400	Reserved
401	Sparton XBT-1 (fall rate equation coefficients: a = 6.301, b = -2.16)
402-410	Reserved
411	Sparton XBT-3 (fall rate equation coefficients: a = 5.861, b = -0.0904)
412-420	Reserved
421	Sparton XBT-4 (fall rate equation coefficients: a = 6.472, b = -2.16)
422-430	Reserved
431	Sparton XBT-5 (fall rate equation coefficients: a = 6.828, b = -1.82)
432-440	Reserved
441	Sparton XBT-5DB (fall rate equation coefficients: a = 6.828, b = -1.82)
442-450	Reserved
451	Sparton XBT-6 (fall rate equation coefficients: a = 6.472, b = -2.16)
452-460	Reserved
461	Sparton XBT-7 (fall rate equation coefficients: a = 6.472, b = -2.16)
462	Sparton XBT-7 (fall rate equation coefficients: a = 6.705, b = -2.28)
463-470	Reserved
471	Sparton XBT-7DB (fall rate equation coefficients: a = 6.472, b = -2.16)
472-480	Reserved
481	Sparton XBT-10 (fall rate equation coefficients: a = 6.301, b = -2.16)
482-490	Reserved
491	Sparton XBT-20 (fall rate equation coefficients: a = 6.472, b = -2.16)
492-500	Reserved
501	Sparton XBT-20DB (fall rate equation coefficients: a = 6.472, b = -2.16)
502-509	Reserved
510	Sparton 536 AXBT (fall rate equation coefficients: a = 1.524, b = 0)
511-699	Reserved
700	Sippican XCTD Standard
701-709	Reserved
710	Sippican XCTD Deep
711-719	Reserved
720	Sippican AXCTD
721-729	Reserved
730	Sippican SXCTD
731-740	Reserved
741	TSK XCTD/XCTD-1/XCTD-1N/XCTD-1A (fall rate equation coefficients: a = 3.42543, b = -0.47)
742	TSK XCTD-2/XCTD-2N/XCTD-4A (fall rate equation coefficients: a = 3.43898, b = -0.31)
743	TSK XCTD-2F (fall rate equation coefficients: a = 3.43898, b = -0.31)
744	TSK XCTD-3/XCTD-3N (fall rate equation coefficients: a = 5.07598, b = -0.72)
745	TSK XCTD-4/XCTD-4N (fall rate equation coefficients: a = 3.68081, b = -0.47)
746	TSK XCTP-1
747	TSK XCTP-4
748-750	Reserved
751	TSK AXCTD
752-779	Reserved
780	Sea-Bird SBE21 SEACAT Thermosalinograph
781	Sea-Bird SBE45 MicroTSG Thermosalinograph
782-799	Reserved
800	Mechanical BT
801-809	Reserved
810	Hydrocast
811-819	Reserved
820	Thermistor chain
821-824	Reserved
825	Temperature (sonic) and pressure probes
826-829	Reserved
830	CTD
831	CTD-P-ALACE float
832-833	Reserved
834	PROVOR V SBE
835	PROVOR IV
836	PROVOR III
837	ARVOR_C, SBE conductivity sensor
838	ARVOR_D, SBE conductivity sensor
839	PROVOR-II, SBE conductivity sensor
840	PROVOR, no conductivity sensor
841	PROVOR, Sea-Bird conductivity sensor
842	PROVOR, FSI conductivity sensor
843	Polar Ocean Profiling System (POPS), PROVOR, SBE CTD
844	Profiling Float, ARVOR, Seabird conductivity sensor
845	Webb Research, no conductivity sensor
846	Webb Research, Sea-Bird conductivity sensor
847	Webb Research, FSI conductivity sensor
848	APEX-EM, SBE conductivity sensor
849	APEX_D, SBE conductivity sensor
850	SOLO, no conductivity sensor
851	SOLO, Sea-Bird conductivity sensor
852	SOLO, FSI conductivity sensor
853	Profiling Float, SOLO2 (SCRIPPS), Seabird conductivity sensor
854	S2A, SBE conductivity sensor
855	Profiling Float, NINJA, no conductivity sensor
856	Profiling Float, NINJA, SBE conductivity sensor
857	Profiling Float, NINJA, FSI conductivity sensor
858	Profiling Float, NINJA, TSK conductivity sensor
859	Profiling Float, NEMO, no conductivity
860	Profiling Float, NEMO, SBE conductivity sensor
861	Profiling Float, NEMO, FSI conductivity sensor
862	SOLO_D, SBE conductivity sensor
863	NAVIS-A, SBE conductivity sensor
864	NINJA_D, SBE conductivity sensor
865	NOVA, SBE conductivity sensor
866	ALAMO, No conductivity sensor
867	ALAMO, RBR conductivity sensor
868	ALAMO, SBE conductivity sensor
869	NAVIS_EBR, SBE conductivity sensor
870	HM2000
871	COPEX
872	S2X
873	ALTO
874	SOLO_D_MRV
875	ALTO RBR
876	ALTO SBE
877	APEX RBR
878	ARVOR RBR
879	SOLO II RBR
880	S2A RBR
881	HM4000 SBE
882	HM6000 SBE
883	APEX_D RBR
884	SOLO_BGC, SBE
885	SOLO_BGC, RBR
886	SOLO_BGC_MRV, SBE
887	SOLO_BGC_MRV, RBR
888	PROVOR_V - Jumbo, SBE
889	PROVOR_V - Jumbo, RBR
890	PROVOR_III - Jumbo, SBE
891	PROVOR_III - Jumbo, RBR
892-899	Reserved
900	Sippican LMP-5 XBT (fall rate equation coefficients: a = 9.727, b = -0.0473)
901	Ice-tethered Profiler (ITP), SBE CTD
902	Brooke ocean moving vessel profiler (MVP)
903	Seabird CTD
904	AML oceanographic CTD
905	Falmouth scientific CTD
906	Ocean sensors CTD
907	Valeport CTD
908	Ocean science MVP
909	Idronaut CTD
910	Seabird SBE38
911-994	Reserved
995	Instrument attached to marine mammals
996	Instrument attached to animals other than marine mammals
997-1022	Reserved
1023	Missing value

0-22-068 - WTEMPR

Water temperature profile recorder types

Code figure	Meaning
0	Reserved
1	Sippican Strip Chart Recorder
2	Sippican MK2A/SSQ-61
3	Sippican MK-9
4	Sippican AN/BHQ-7/MK8
5	Sippican MK-12
6	Sippican MK-21
7	Sippican MK-8 Linear Recorder
8	Sippican MK-10
9	Reserved
10	Sparton SOC BT/SV Processor Model 100
11	Lockheed-Sanders Model OL5005
12-19	Reserved
20	ARGOS XBT-ST
21	CLS-ARGOS/Protecno XBT-ST Model-1
22	CLS-ARGOS/Protecno XBT-ST Model-2
23-29	Reserved
30	BATHY Systems SA-810
31	Scripps Metrobyte Controller
32	Murayama Denki Z-60-16 III
33	Murayama Denki Z-60-16 II
34	Protecno ETSM2
35	Nautilus Marine Service NMS-XBT
36-39	Reserved
40	TSK MK-2A
41	TSK MK-2S
42	TSK MK-30
43	TSK MK-30N
44	Reserved
45	TSK MK-100
46	TSK MK-130 Compatible recorder for both XBT and XCTD
47	TSK MK-130 AXCTD recorder
48	TSK AXBT RECEIVER MK-300
49	TSK MK-150/MK-150N/MK-200 Compatible recorder for both XBT and XCTD
50	JMA ASTOS
51-59	Reserved
60	ARGOS communications, sampling on up transit
61	ARGOS communications, sampling on down transit
62	Orbcomm communications, sampling on up transit
63	Orbcomm communications, sampling on down transit
64	Iridium communications, sampling on up transit
65	Iridium communications, sampling on down transit
66-69	Reserved
70	CSIRO Devil-1 XBT acquisition system
71	CSIRO Devil-2 XBT acquisition system
72	TURO/CSIRO Quoll XBT acquisition system
73-79	Reserved
80	Applied Microsystems Ltd., MICRO-SVT&P
81	Sea Mammal Research Unit, Univ. St. Andrews, UK, uncorrected salinity from a sea mammal mounted instrument
82	Sea Mammal Research Unit, Univ. St. Andrews, UK, corrected salinity from a sea mammal mounted instrument
83-98	Reserved
99	Unknown
100-126	Reserved
127	Missing value

0-22-120 - AWCK

Tide station automated water level check

Code figure	Meaning
0	Good data
1	Maximum (high) water level limit exceeded
2	Minimum (low) water level limit exceeded
3	Rate of change limit for water level exceeded
4	Flat limit for water level exceeded
5	Observed minus predicted water level value limit exceeded
6	Observed value from primary water level sensor minus backup water level sensor
7	Value exceeded specified tolerance from expected value
8	Water level QA parameter (sigmas and/or outliers) limits exceeded
9	Sea temperature outside of expected range
10	Multiple QC checks (above) failed
11	No automated water level checks performed
12-30	Reserved
31	Missing value

0-22-121 - MWCK

Tide station manual water level check

Code figure	Meaning
0	Operational
1	Possible clogging problem or otherwise degraded water level data
2	Possible datum shift
3	Unknown status of water level sensor
4	Suspected or known sea temperature sensor problem
5	Multiple possible problems (above)
6	Bad data DO NOT DISSEMINATE!
7	No manual water level checks performed
8-30	Reserved
31	Missing value

0-22-122 - AMCK

Tide station automated meteorological data check

Code figure	Meaning
0	Good data from all sensors
1	Wind direction outside of allowable range
2	Wind speed outside of expected range
3	Barometric pressure outside of expected range
4	Air temperature outside of expected range
5	Multiple sensors failed QC checks
6	No automated meteorological data checks performed
7-30	Reserved
31	Missing value

0-22-123 - MMCK

Tide station manual meteorological data check

Code figure	Meaning
0	Operational
1	Suspected or known problem with wind sensor
2	Suspected or known problem with barometric pressure sensor
3	Suspected or known problem with air temperature sensor
4	Unknown status of all sensors
5	Suspected or known problems with multiple sensors
6	Bad data DO NOT DISSEMINATE!
7	No manual meteorological data checks performed
8-30	Reserved
31	Missing value

0-22-178 - XXLT

XBT/XCTD launcher type

Code figure	Meaning
0	Unknown
1	LM-2A Deck-mounted
2	LM-3A Hand-held
3	LM-4A Thru-hull
4-9	Reserved
10	AL-12 TSK Autolauncher (up to 12 probes)
11-19	Reserved
20	SIO XBT Autolauncher (up to 6 probes)
21-29	Reserved
30	AOML XBT V6 Autolauncher (up to 6 Deep Blue probes)
31	AOML XBT V8.0 Autolauncher (up to 8 Deep Blue probes)
32	AOML XBT V8.1 Autolauncher (up to 8 Deep Blue and Fast Deep probes)
33-89	Reserved
90	CSIRO Devil Autolauncher
91-99	Reserved
100	MFSTEP Autolauncher (Mediterranean)
101-254	Reserved
255	Missing value

0-22-194 - AVGPER

Averaging period for TRACKOB parameters

Code figure	Meaning
0	Averaging period for sea temperature - spot values
1	Averaging period for sea temperature - less than 15 minutes
2	Averaging period for sea temperature - from 15 to 45 minutes
3	Averaging period for sea temperature - more than 45 minutes
4	Averaging period for sea temperature - data not available
5	Averaging period for salinity - spot values
6	Averaging period for salinity - less than 15 minutes
7	Averaging period for salinity - from 15 to 45 minutes
8	Averaging period for salinity - more than 45 minutes
9	Averaging period for salinity - data not available
10	Averaging period for surface current direction and speed - spot values
11	Averaging period for surface current direction and speed - less than 15 minutes
12	Averaging period for surface current direction and speed - from 15 to 45 minutes
13	Averaging period for surface current direction and speed - more than 45 minutes
14	Averaging period for surface current direction and speed - data not available
15	Missing value

0-22-196 - IUCSPD

Indicator for units of sea-surface current speed

Code figure	Meaning
0	Meters per second
1	Knots
2	Reserved
3	Missing value

0-22-246 - SSTQM

PREPBUFR: Sea temperature (quality) marker

When the value of
0-22-247 - SSTPC (PREPBUFR: Sea temperature event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

When the value of
0-22-247 - SSTPC (PREPBUFR: Sea temperature event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4	Observation with pre-existing quality marker 0 (keep) is flagged
5	Observation with pre-existing quality marker 1 (good) is flagged
6	Observation with pre-existing quality marker 2 (neutral/default) is flagged
7	Observation with pre-existing quality marker 3 (suspect) is flagged
8-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

When the value of
0-22-247 - SSTPC (PREPBUFR: Sea temperature event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))
or
= 4 (Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure)
or
= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))
or
= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))
or
= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))
or
= 8 (Virtual temperature/specific humidity processing step "VIRTMP")
or
= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))
or
= 11 (Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs))
or
= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))
or
= 13 (Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program))
or
= 14 (ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-10	Reserved
11	Observation with pre-existing quality marker 3 (suspect) was flagged by NCEP SDM
12	Non-profiler observation is on the reject list
13	Non-profiler observation failed one or more checks
14	Observation was assigned a purge flag by NCEP SDM
15-30	Reserved
31	Missing value

0-22-247 - SSTPC

PREPBUFR: Sea temperature event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-22-248 - SSTRC

PREPBUFR: Sea temperature event reason code

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-22-247 - SSTPC (PREPBUFR: Sea temperature event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-22-247 - SSTPC (PREPBUFR: Sea temperature event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-22-247 - SSTPC (PREPBUFR: Sea temperature event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-22-247 - SSTPC (PREPBUFR: Sea temperature event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-22-247 - SSTPC (PREPBUFR: Sea temperature event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-22-247 - SSTPC (PREPBUFR: Sea temperature event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-23-001 - AENA

Accident early notification - article applicable

Code figure	Meaning
0	Reserved
1	Articles 1 and 2
2	Article 3
3	Article 5.2
4-6	Reserved
7	Missing value

0-23-002 - AFII

Activity or facility involved in incident

Code figure	Meaning
0	Reserved
1	Nuclear reactor on ground
2	Nuclear reactor at sea
3	Nuclear reactor In space
4	Nuclear fuel facility
5	Radioactive waste management facility
6	Transport of nuclear fuel or radioactive waste
7	Storage of nuclear fuel or radioactive waste
8	Manufacture of radio isotopes
9	Use of radio isotopes
10	Storage of radio isotopes
11	Disposal of radio isotopes
12	Transport of radio isotopes
13	Use of radio isotopes for power generation
14-30	Reserved
31	Missing value

0-23-003 - TPRE

Type of release

Code figure	Meaning
0	No release
1	Release to atmosphere
2	Release to water
3	Release to both atmosphere and water
4	Expected release to atmosphere
5	Expected release to water
6	Expected release to both atmosphere and water
7	Missing value

0-23-004 - CTNB

Countermeasures taken near border

Code figure	Meaning
0	No countermeasures
1	Evacuation
2	Sheltering
3	Prophylaxis
4	Water
5-6	Reserved
7	Missing value

0-23-005 - COIN

Cause of incident

Code figure	Meaning
0	Incident state does not understand what happened
1	Incident state knows the cause of the incident
2	Reserved
3	Missing value

0-23-006 - INSI

Incident situation

Code figure	Meaning
0	No improvement
1	Unstable
2	No deterioration
3	Improving
4	Stable
5	Deteriorating
6	Reserved
7	Missing value

0-23-007 - CHOR

Characteristics of release

Code figure	Meaning
0	No release
1	Release has stopped
2	Release
3	Release is continuing
4-6	Reserved
7	Missing value

0-23-008 - SOCR

State of current release

Code figure	Meaning
0	Gaseous
1	Particulate
2	Mixture of gaseous and particulate
3	Missing value

0-23-009 - SOER

State of expected release

Code figure	Meaning
0	Gaseous
1	Particulate
2	Mixture of gaseous and particulate
3	Missing value

0-23-016 - PCTE

Possibility of significant chemical toxic health effect

Code figure	Meaning
0	No significant chemical toxic health effect
1	Significant chemical toxic health effect possible
2	Reserved
3	Missing value

0-23-018 - RBOT

Release behaviour over time

Code figure	Meaning
0	Release no longer occurring
1	Release still occurring
2	Release expected to increase in next 6 hours
3	Release expected to remain constant in next 6 hours
4	Release expected to decrease in next 6 hours
5-6	Reserved
7	Missing value

0-23-031 - PEPS

Possibility that plume will encounter precipitation in State in which incident occurred

Code figure	Meaning
0	Plume will not encounter rain in incident State
1	Plume will encounter rain in incident State
2	Reserved
3	Missing value

0-23-032 - PECW

Plume will encounter change in wind direction and/or speed flag

Code figure	Meaning
0	No significant change expected within the next 6 hours
1	Anticipated significant change expected within the next 6 hours
2	Reserved
3	Missing value

0-24-003 - CORE

Composition of release

Code figure	Meaning
0	Noble gases
1	Iodides
2	Caesiums
3	Transuranics
4-30	Reserved
31	Missing value

0-25-004 - ECHP

Echo processing

Code figure	Meaning
0	Incoherent
1	Coherent (Doppler)
2	Reserved
3	Missing value

0-25-005 - ECHI

Echo integration

Code figure	Meaning
0	Logarithm 2.5dB
1	Linear
2	Special
3	Missing value

0-25-006 - Z2RC

Z to R conversion

Code figure	Meaning
0	ZH to R conversion
1	(ZH, ZDR) to (NO, DO) to R
2	(Z (Fl), Z (F2)) to attenuation to R
3-5	Reserved
6	Other
7	Missing value

0-25-009 - CALM

Calibration method

Bit number	Meaning
1	None
2	Calibration target or signal
3	Against rain gauges
All 4	Missing value

0-25-010 - CLTR

Clutter treatment

Code figure	Meaning
0	None
1	Map
2	Insertion of higher elevation data and map
3	Analysis of the fluctuating Logarithm signal (clutter detection)
4	Extraction of the fluctuating part of linear signal (clutter suppression)
5	Clutter suppression Doppler
6	Multi parameter analysis
7-14	Reserved
15	Missing value

0-25-011 - GOCO

Ground occultation correction (screening)

Code figure	Meaning
0	None
1	Map of correction factors
2	Interpolation (azimuth or elevation)
3	Missing value

0-25-012 - RACO

Range attenuation correction

Code figure	Meaning
0	Hardware
1	Software
2	Hardware and software
3	Missing value

0-25-013 - BBCO

Bright-band correction

Bit number	Meaning
1	Brightband correction
All 2	Missing value

0-25-015 - RDCO

Radome attenuation correction

Bit number	Meaning
1	Radome Attenuation Correction
All 2	Missing value

0-25-017 - PACO

Precipitation attenuation correction

Bit number	Meaning
1	Precipitation attenuation correction
All 2	Missing value

0-25-020 - MSPE

Mean speed estimation

Code figure	Meaning
0	FFT (fast Fourier transform)
1	PP (pulse pair processing)
2	VPC (vector phase change)
3	Missing value

0-25-021 - WICE

Wind computation enhancement

Bit number	Meaning
1	Simple average
2	Consensus average
3	Median check
4	Vertical consistency check
5	Other
6-7	Reserved
All 8	Missing value

0-25-022 - GRFL

GHRSST rejection flag

Bit number	Meaning
1	Unprocessed
2	Land suspected
3	Wind speed too large
4	Ice detected
5	Rain detected (Microwave retrievals only)
6	Cloudy detected (Infra-red retrievals only)
7	Cosmetic value
8	SST out of range
All 9	Missing value

0-25-023 - GCFL

GHRSST confidence flag

Bit number	Meaning
1	Default confidence value has been used
2	Default bias and standard deviation has been used
3	Sun glint suspected
4	Sea ice retrieval for microwave data
5	High wind speed retrieval
6	Inaccurate SST due to low SST (< 285K) (Only applies to the TMI instrument)
7	Relaxed rain contamination suspected
8	Potential side lobe contamination
All 9	Missing value

0-25-024 - GDQL

GHRSST data quality

Code figure	Meaning
0	Unprocessed infrared retrieval
1	Cloudy retrievals
2	Bad: Data that are probably contaminated by cloud
3	Suspect data
4	Acceptable data
5	Excellent data
6	Cool skin suspected
7-9	Reserved
10	Unprocessed microwave retrieval
11	Questionable microwave retrieval that may be contaminated
12	Acceptable microwave retrieval
13	High probability of diurnal variability
14	Reserved
15	Missing value

0-25-029 - CAMT

Calibration method

Bit number	Meaning
1	Reserved
2	Calibration target or signal
3	Against raingauges
4	Against other instruments (distrometer - attenuation)
5	Reserved
All 6	Missing value

0-25-030 - SSTU

Running mean sea-surface temperature usage

Code figure	Meaning
0	Running mean sea-surface temperature not used because usage criteria not met
1	Running mean sea-surface temperature not used because data not available
2	Running mean sea-surface temperature used as predictor
3	Missing value

0-25-031 - NWPT

NWP-generated vertical profile thinning method

Code figure	Meaning
0	Reserved
1	No thinning applied (all native model levels are included from base to top of pseudo-sounding)
2	Native model levels are present only if they are significant levels as per regulations B/C 25 for conventional TEMP soundings
3	A predefined subset of native model levels is present
4	No native model levels are present. All profile levels are interpolated to a predefined set of pressure coordinate levels
5-6	Reserved
7	Missing value

0-25-032 - NPHL

Wind profiler mode information

Code figure	Meaning
0	Reserved
1	Data from low mode
2	Data from high mode
3	Missing value

0-25-033 - NPSM

Wind profiler submode information

Code figure	Meaning
0	Wind Profiler operating in Submode A
1	Wind Profiler operating in Submode B
2	Reserved
3	Missing value

0-25-034 - NPQC

Wind profiler quality control test results

Bit number	Meaning
1	Test A performed and failed
2	Test B performed and failed
3	Test results inconclusive
All 4	Missing value

0-25-035 - DMFP

Decision method for polarity

Code figure	Meaning
0	Not defined
1	Individual voltage deflection
2	Current based, above a threshold
3	Voltage based, above a threshold
4	Consensus of sensors, current above a threshold
5	Consensus of sensors, voltage above a threshold
6	Reserved
7	Missing value

0-25-036 - ALME

Atmospherics location method

Code figure	Meaning
0	Network of several direction-finders operating on the same individual atmospherics
1	Network of several arrival-time stations operating on the same individual atmospherics
2-5	Reserved
6	Single station range bearing technique
7-14	Reserved
15	Missing value

0-25-040 - CO2W

CO2 wind product derivation

Code figure	Meaning
0	Non-specific mode
1	First guess data
2	Cloud data
3	Average vector data
4	Primary data
5	Guess data
6	Vector data
7	Tracer data; this image
8	Tracer data to next image
9-14	Reserved
15	Missing value

0-25-041 - MPDR

Moving platform direction reporting method

Code figure	Meaning
0	Direction originally reported in true degrees
1	Direction originally reported using Code Table 0700, FM13
2	Reserved
3	Missing value

0-25-042 - MPSR

Moving platform speed reporting method

Code figure	Meaning
0	Speed originally reported in metres per second
1	Speed originally reported using Code Table 4451, FM13
2	Reserved
3	Missing value

0-25-045 - HIRC

HIRS channel combination

Bit number	Meaning
1	Channel 1 is present
2	Channel 2 is present
3	Channel 3 is present
4	Channel 4 is present
5	Channel 5 is present
6	Channel 6 is present
7	Channel 7 is present
8	Channel 8 is present
9	Channel 9 is present
10	Channel 10 is present
11	Channel 11 is present
12	Channel 12 is present
13	Channel 13 is present
14	Channel 14 is present
15	Channel 15 is present
16	Channel 16 is present
17	Channel 17 is present
18	Channel 18 is present
19	Channel 19 is present
20	Channel 20 is present
All 21	Missing value

0-25-046 - MSUC

MSU channel combination

Bit number	Meaning
1	Channel 1 is present
2	Channel 2 is present
3	Channel 3 is present
4	Channel 4 is present
All 5	Missing value

0-25-047 - SSUC

SSU channel combination

Bit number	Meaning
1	Channel 1 is present
2	Channel 2 is present
3	Channel 3 is present
All 4	Missing value

0-25-048 - AMAC

AMSU-A channel combination

Bit number	Meaning
1	Channel 1 is present
2	Channel 2 is present
3	Channel 3 is present
4	Channel 4 is present
5	Channel 5 is present
6	Channel 6 is present
7	Channel 7 is present
8	Channel 8 is present
9	Channel 9 is present
10	Channel 10 is present
11	Channel 11 is present
12	Channel 12 is present
13	Channel 13 is present
14	Channel 14 is present
15	Channel 15 is present
All 16	Missing value

0-25-049 - AMBC

AMSU-B channel combination

Bit number	Meaning
1	Channel 1 is present
2	Channel 2 is present
3	Channel 3 is present
4	Channel 4 is present
5	Channel 5 is present
All 6	Missing value

0-25-051 - AVHCST

AVHRR channel combination

Bit number	Meaning
1	Channel 1 is present
2	Channel 2 is present
3	Channel 3 is present
4	Channel 4 is present
5	Channel 5 is present
6	Channel 6 is present
All 7	Missing value

0-25-053 - OBQL

Observation quality

Bit number	Meaning
1	Good
2	Redundant
3	Questionable
4	Bad
5	Experimental
6	Precipitating
7-11	Reserved
All 12	Missing value

0-25-063 - CPSI

Central processor or system identifier

Code figure	Meaning
0	Not defined
1	Main processor
2	Backup processor
3-254	Reserved
255	Missing value

0-25-069 - FLPC

Flight level pressure corrections

Bit number	Meaning
1	Smoothed
2	Baseline adjusted
3	Normalized time interval
4	Outlier checked
5	Plausibility checked
6	Consistency checked
7	Interpolated
All 8	Missing value

0-25-086 - QDEP

Depth correction indicator

Code figure	Meaning
0	Depths are not corrected
1	Depths are corrected
2	Reserved
3	Missing value

0-25-090 - ORSF

Orbit state flag

Code figure	Meaning
0	Orbit computed during a manoeuvre
1	Adjusted mission operations orbit
2	Extrapolated mission operations orbit
3	Adjusted (preliminary/precise) orbit
4	(preliminary/precise) orbit is estimated during a manoeuvre period
5	(preliminary/precise) orbit is interpolated over a tracking data gap
6	(preliminary/precise) orbit is extrapolated for a duration less than 1 day
7	(preliminary/precise) orbit is extrapolated for a duration that ranges from 1 day to 2 days
8	(preliminary/precise) orbit is extrapolated for a duration larger than 2 days, or that the orbit is extrapolated just after a manoeuvre
9	DORIS DIODE navigator orbit
10-14	Reserved
15	Missing value

0-25-093 - RACC

RASS computation correction

Bit number	Meaning
1	No correction
2	Vertical velocity correction
3-6	Reserved
7	All corrections
All 8	Missing value

0-25-095 - ASFL

Altimeter state flag

Bit number	Meaning
1	Altimeter operating (set to 0 if nominal, set to 1 if backup)
All 2	Missing value

0-25-096 - RSFL

Radiometer state flag

Bit number	Meaning
1	Mode indicator (0 if Mode 2, 1 if Mode 1)
2	Mode 1 Calibration sequence indicator (0 if normal data taking either Mode 1 or 2, 1 if Mode 1 Calibration sequence), Bits 3 and 4 indicate active 23.8 GHz channel
3	Channel 2 (0 if on, 1 if off)
4	Channel 3 (0 if on, 1 if off)
All 5	Missing value

0-25-097 - EENO

Three-dimensional error estimate of the navigator orbit

Code figure	Meaning
0	Ranges between 0 and 30 cm
1	Ranges between 30 and 60 cm
2	Ranges between 60 and 90 cm
3	Ranges between 90 and 120 cm
4	Ranges between 120 and 150 cm
5	Ranges between 150 and 180 cm
6	Ranges between 180 and 210 cm
7	Ranges between 210 and 240 cm
8	Ranges between 240 and 270 cm
9	Ranges larger than 270 cm
10-14	Reserved
15	Missing value

0-25-098 - ADQF

Altimeter data quality flag

Bit number	Meaning
1	Ku band range
2	C band range
3	Ku band significant wave height
4	C band significant wave height
5	Ku band backscatter coefficient
6	C band backscatter coefficient
7	Off nadir angle from Ku band waveform parameters
8	Off nadir angle from platform
All 9	Missing value

0-25-099 - ARQF

Altimeter correction quality flag

Bit number	Meaning
1	Ku band range instrumental correction
2	C band range instrumental correction
3	Ku band signficant wave height instrumental correction
4	C band significant wave height instrumental correction
5	Ku band backscatter coefficient instrumental correction
6	C band backscatter coefficient instrumental correction
7-8	Reserved
All 9	Missing value

0-25-110 - IMPS

Image processing summary

Bit number	Meaning
1	Raw data analysis used for raw data correction. Correction done using default parameters
2	Raw data analysis used for raw data correction. Correction done using raw data analysis results
3	Antenna elevation pattern correction applied
4	Nominal chirp replica used
5	Reconstructed chirp used
6	Slant range to ground range conversion applied
7-9	Reserved
All 10	Missing value

0-25-112 - BSADQF

Band specific altimeter data quality flag

Bit number	Meaning
1	Band specific range
2	Band specific significant wave height
3	Band specific backscatter coefficient
4	Off nadir angle from band specific waveform parameters
5	Off nadir angle from platform
6-8	Reserved
All 9	Missing value

0-25-113 - BSACQF

Band specific altimeter correction quality flag

Bit number	Meaning
1	Band specific range instrumental correction
2	Band specific significant wave height instrumental correction
3	Band specific backscatter coefficient instrumental correction
4-8	Reserved
All 9	Missing value

0-25-120 - RAPF

RA2-L2-processing flag

Code figure	Meaning
0	Percentage of data set records free of processing errors during Level 2 processing is greater than the acceptable threshold
1	Percentage of data set records free of processing errors during Level 2 processing is less than the acceptable threshold
2	Reserved
3	Missing value

0-25-122 - HCRF

Hardware configuration for RF

Code figure	Meaning
0	Hardware configuration for RF is A
1	Hardware configuration for RF is B
2	Reserved
3	Missing value

0-25-123 - HCHA

Hardware configuration for HPA

Code figure	Meaning
0	Hardware configuration for HPA is A
1	Hardware configuration for HPA is B
2	Reserved
3	Missing value

0-25-124 - MRPF

MWR-L2-processing flag

Code figure	Meaning
0	Percentage of data set records free of processing errors during Level 2 processing is greater than the acceptable threshold
1	Percentage of data set records free of processing errors during Level 2 processing is less than the acceptable threshold
2	Reserved
3	Missing value

0-25-139 - PROCLVL

Processing level

Code figure	Meaning
0	L1B
1	L2A
2-30	Reserved
31	Missing value

0-25-150 - MTIS

Method of tropical cyclone intensity analysis using satellite data

Code figure	Meaning
0	Reserved
1	The Dvorak's VIS (VISual imagery) intensity analysis
2	The Dvorak's EIR (Enhanced InfraRed imagery) intensity analysis
3-14	Reserved
15	Missing value

0-25-174 - SMIF

SMOS information flag

Bit number	Meaning
1	Pixel is affected by RFI effects
2	Pixel is located in the hexagonal Alias direction centred on Sun alias
3	Pixel is close to the border delimiting the extended Alias free zone
4	Pixel is inside the extended Alias free zone
5	Pixel is inside the exclusive of Alias free zone
6	Pixel is located in a zone where a moon alias was reconstructed
7	Pixel is located in a zone where Sun reflection has been detected
8	Pixel is located in a zone where Sun Alias was reconstructed
9	Flat target transformation has been performed during image reconstruction of this pixel
10	Scene has been combined with an adjustment scene in opposite polarisation during image reconstruction to account for cross-polarisation leakage
11	Direct Moon correction has been performed during image reconstruction of this pixel
12	Reflected Sun correction has been performed during image reconstruction of this pixel
13	Direct Sun correction has been performed during image reconstruction of this image
All 14	Missing value

0-25-181 - L2PF

L2 processing flag

Code figure	Meaning
0	OK
1	Percentage of L2b records free of processing errors is less than acceptable threshold
2	Reserved
3	Missing value

0-25-182 - L1PF

L1 processing flag

Code figure	Meaning
0	OK
1	Percentage of L1b records free of processing errors is less than acceptable threshold
2	Reserved
3	Missing value

0-25-184 - L2PS

L2 product status

Code figure	Meaning
0	OK
1	Product has a duration shorter than the input product
2	Reserved
3	Missing value

0-25-187 - CONFLG

Confidence flag

Code figure	Meaning
0	Valid
1	Not valid
2-14	Reserved
15	Missing value

0-25-188 - MRSLP

Method for reducing pressure to sea level

Code figure	Meaning
0	Pressure adjusted to mean sea level following WMO 8 for low level (< 50 m) stations
1	Pressure adjusted to mean sea level following WMO 8 for stations below 750 m
2	Pressure adjusted to sea level following national practice
3	Pressure adjusted to local water level following national practice
4	Pressure not corrected for height
5-30	Reserved
31	Missing value

0-25-190 - AEPM

Altimeter echo processing mode

Code figure	Meaning
0	Low Resolution Mode (LRM)
1	Synthetic Aperture Radar (SAR)
2	LRM and SAR (interleaved)
3	Reserved
4	Pseudo-LRM (PLRM)
5	SAR Interferometric Mode (SARIN)
6-254	Reserved
255	Missing value

0-25-191 - ATRM

Altimeter tracking mode

Code figure	Meaning
0	Open loop
1	Closed loop
2	Open loop fixed gain
3-254	Reserved
255	Missing value

0-25-193 - SSTA

NMC 15 day sea-surface temperature availability

Code figure	Meaning
0	Not available
1	Available
2	Reserved
3	Missing value

0-25-194 - H8ST

HIRS channel 8/surface air temperature difference

Code figure	Meaning
0	Falls within specified limits
1	Exceeds specified limits
2	Reserved
3	Missing value

0-25-195 - GDRFLG

Geophysical Data Record (GDR) origin flag

Code figure	Meaning
0	Operational Geophysical Data Record (OGDR) (produced in real time to complete IGDR)
1	Interim Geophysical Data Record (IGDR) (produced in near real time)
2	Reserved
3	Missing value

0-25-201 - SWDL

Satellite wind deep layer moisture flag

Code figure	Meaning
0	Reserved
1	Deep layer
2	Cloud top (nominal cloud drift)
3	Missing value

0-25-205 - TOFF

RTOVS filter flag

Code figure	Meaning
0	Good
1	Redundant
2	Bad
3-6	Reserved
7	Missing value

0-26-010 - HRIN

Hours included

Bit number	Meaning
1	0100 included
2	0200 included
3	0300 included
4	0400 included
5	0500 included
6	0600 included
7	0700 included
8	0800 included
9	0900 included
10	1000 included
11	1100 included
12	1200 included
13	1300 included
14	1400 included
15	1500 included
16	1600 included
17	1700 included
18	1800 included
19	1900 included
20	2000 included
21	2100 included
22	2200 included
23	2300 included
24	2400 included
25	Unknown mixture of hours
All 26	Missing value

0-29-001 - PROT

Projection type

Code figure	Meaning
0	Gnomonic projection
1	Polar stereographic projection
2	Lambert's conformal conic projection
3	Mercator's projection
4	Scanning cone (for radar, a Cartesian grid placed directly on the scanning cone defined by the azimuthal sweep of the radar)
5	Reserved
6	No projection
7	Missing value

0-29-002 - COGT

Coordinate grid type

Code figure	Meaning
0	Cartesian
1	Polar
2	Other
3-6	Reserved
7	Missing value

0-30-031 - PICT

Picture type

Code figure	Meaning
0	PPI
1	Composite
2	CAPPl
3	Vertical section
4	Alphanumeric data
5	Map of subject clutter
6	Map
7	Test picture
8	Comments
9	Map of ground occultation
10	Map of radar beam height
11-13	Reserved
14	Other
15	Missing value

0-30-032 - CWOD

Combination with other data

Bit number	Meaning
1	Map
2	Satellite IR
3	Satellite VIS
4	Satellite WV
5	Satellite multispectral
6	Synoptic observations
7	Forecast parameters
8	Lightning data
9-14	Reserved
15	Other data
All 16	Missing value

0-31-021 - AFSI

Associated field significance

Code figure	Meaning
0	Reserved
1	1 bit indicator of quality (0 = good, 1 = suspect or bad)
2	2 bit indicator of quality (0 = good, 1 = slightly suspect, 2 = highly suspect, 3 = bad)
3-4	Reserved
5	8-bit indicator of quality control (0 = Data checked and declared good, 1 = Data checked and declared suspect, 2 = Data checked and declared aggregated, 3 = Data checked and declared out of instrument range, 4 = Data checked, declared aggregated, and out of instrument range, 5 = Parameter is not measured at the station, 6 = Daily value not provided, 7 = Data unchecked)
6	4-bit indicator of quality control class according to GTSPP (0 = unqualified, 1 = correct value (all checks passed), 2 = probably good but value inconsistent with statistics (differ from climatology), 3 = probably bad (spike or gradient, if other tests passed), 4 = bad or impossible value (out of scale, vertical instability or constant profile), 5 = value modified during quality control, 8 = interpolated value)
7	Percentage confidence
8	2-bit indicator of suspected data (0 = Not suspected, 1 = Suspected, 2 = Reserved, 3 = Information not required)
9	4-bit status of ancillary data (0 = Data present and good and collocated, 1 = Data available but of degraded quality and not used, 2 = No spatiotemporally collocated data available)
10-20	Reserved
21	1 bit indicator of correction (0 = original value, 1 = substituted/corrected value)
22-62	Reserved
63	Missing value

0-31-031 - DPRI

Data present indicator

Bit number	Meaning
1	0 = data present, 1 = data not present

0-33-002 - QMRK

Quality information

Code figure	Meaning
0	Data not suspect
1	Data suspect
2	Reserved
3	Missing value

0-33-003 - QMRKH

Quality information

Code figure	Meaning
0	Data not suspect
1	Data slightly suspect
2	Data highly suspect
3	Data considered unfit for use
4-6	Reserved
7	Missing value

0-33-005 - QUALI

Quality information (AWS data)

Bit number	Meaning
1	No automated meteorological data checks performed
2	Pressure data suspect
3	Wind data suspect
4	Dry-bulb temperature data suspect
5	Wet-bulb temperature data suspect
6	Humidity data suspect
7	Ground temperature data suspect
8	Soil temperature (depth 1) data suspect
9	Soil temperature (depth 2) data suspect
10	Soil temperature (depth 3) data suspect
11	Soil temperature (depth 4) data suspect
12	Soil temperature (depth 5) data suspect
13	Cloud data suspect
14	Visibility data suspect
15	Present weather data suspect
16	Lightning data suspect
17	Ice deposit data suspect
18	Precipitation data suspect
19	State of ground data suspect
20	Snow data suspect
21	Water content data suspect
22	Evaporation/evapotranspiration data suspect
23	Sunshine data suspect
24-29	Reserved
All 30	Missing value

0-33-006 - IMSI

Internal measurement status information (AWS)

Code figure	Meaning
0	Self-check OK
1	At least one Warning active, no Alarms
2	At least one Alarm active
3	Sensor failure
4-6	Reserved
7	Missing value

0-33-015 - QCCHEK

Data quality-check indicator

Code figure	Meaning
0	Passed all checks
1	Missing-data check
2	Descending/reascending balloon check
3	Data plausibility check (above limits)
4	Data plausibility check (below limits)
5	Superadiabatic lapse rate check
6	Limiting angles check
7	Ascension rate check
8	Excessive change from previous flight
9	Balloon overhead check
10	Wind speed check
11	Wind direction check
12	Dependency check
13	Data valid but modified
14	Data outlier check
15-62	Reserved
63	Missing value

0-33-020 - QCIND

Quality control indication of following value

Code figure	Meaning
0	Good
1	Inconsistent
2	Doubtful
3	Wrong
4	Not checked
5	Has been changed
6	Estimated
7	Missing value

0-33-021 - QOFV

Quality of following value

Code figure	Meaning
0	Within limits
1	Outside limits
2	Reserved
3	Missing value

0-33-022 - QBST

Quality of buoy satellite transmission

Code figure	Meaning
0	Good (several identical reports have been received)
1	Dubious (no identical reports have been received)
2	Reserved
3	Missing value

0-33-023 - QCIL

Quality of buoy location

Code figure	Meaning
0	Reliable (location was made over two satellite passes)
1	Latest known (no location over the corresponding pass)
2	Dubious (location made over one pass only; a second solution is possible in 5 per cent of the cases)
3	Missing value

0-33-024 - QCEVR

Station elevation quality mark (for mobile stations)

Code figure	Meaning
0	Reserved
1	Excellent - within 3 meters
2	Good - within 10 meters
3	Fair - within 20 meters
4	Poor - more than 20 meters
5	Excellent - within 10 feet
6	Good - within 30 feet
7	Fair - within 60 feet
8	Poor - more than 60 feet
9-14	Reserved
15	Missing value

0-33-025 - INTV

ACARS interpolated values indicator

Code figure	Meaning
0	Time interpolated, latitude and longitude reported
1	Time reported, latitude and longitude interpolated
2	Time, latitude, and longitude interpolated
3	Time, latitude, and longitude reported
4-6	Reserved
7	Missing value

0-33-026 - MSTQ

Moisture quality

Code figure	Meaning
0	Normal operations - measurement mode
1	Normal operations - non-measurement mode
2	Small RH
3	Humidity element is wet
4	Humidity element contaminated
5	Heater fail
6	Heater fail and wet/contaminated humidity element
7	At least one of the input parameters used in the calculation of mixing ratio is invalid
8	Numeric error
9	Sensor not installed
10	Calculated RH > 100%
11	Input laser power too low
12	Probe WV temperature out of range
13	Probe WV pressure out of range
14	Spectral line out of range
15	No laser output
16-62	Reserved
63	Missing value

0-33-027 - QCLS

Location quality class (range of radius of 66 % confidence)

Code figure	Meaning
0	Radius >= 1500 m
1	500 m =< Radius <1500 m
2	250 m =< Radius < 500 m
3	Radius < 250 m
4	<= 100m
5-6	Reserved
7	Missing value

0-33-028 - SSOQ

Snapshot overall quality

Code figure	Meaning
0	Reserved
1	Nominal
2	Degraded by SW error; any error reported by the algorithms
3	Degraded by instrument error
4	Degraded by corrupted /missing ADF
5	General degradation
6	Reserved
7	Missing value

0-33-030 - SLSF

Scan line status flags for ATOVS

Bit number	Meaning
1	Do not use scan for product generation
2	Time sequence error detected with this scan
3	Data gap precedes this scan
4	No calibration
5	No earth location
6	First good time following a clock update
7	Instrument status changed with this scan
8-23	Reserved
All 24	Missing value

0-33-031 - SLQF

Scan line quality flags for ATOVS

Bit number	Meaning
1	Time field is bad but can probably be inferred from the previous good time
2	Time field is bad and can't be inferred from the previous good time
3	This record starts a sequence that is inconsistent with previous times (i.e. there is a time discontinuity). This may or may not be associated with a spacecraft clock update (see scan line status flags for ATOVS)
4	Start of a sequence that apparently repeats scan times that have been previously accepted
5	Scan line was not calibrated because of bad time
6	Scan line was calibrated using fewer than the preferred number of scan lines because of proximaty to start or end of data or to a data gap
7	Scan line was not calibrated because of bad or insufficient PRT data
8	Scan line was calibrated but with marginal PRT data
9	Some uncalibrated channels on this scan
10	Uncalibrated due to instrument mode
11	Questionable calibration because of antenna position error of space view
12	Questionable calibration because of antenna position error of black body
13	Not Earth-located because of bad time
14	Earth location questionable because of questionable time code (see time problem code bits)
15	Earth location questionable only marginal agreement with reasonableness check
16	Earth location questionable fails reasonableness check
17	Earth location questionable because of antenna position check
18	Scan line calibration cold black body
19	Scan line calibration warm black body
20	Scan line calibration space view
21	Earth view
22-23	Reserved
All 24	Missing value

0-33-032 - ACQF

Channel quality flags for ATOVS

Bit number	Meaning
1	No good blackbody counts for scan line
2	No good space view counts for this line
3	No good PRTs for this line
4	Some bad blackbody view counts for this line
5	Some bad space view counts for this line
6	Some bad PRT temps on this line
7	Quality for this scan is reduced
8-23	Reserved
All 24	Missing value

0-33-033 - FOVQ

Field of view quality flags for ATOVS

Bit number	Meaning
1	Secondary calibration used
2	Brightness temperature in channel 1 is physically unreasonable or has not been calculated due to calibration problems
3	Brightness temperature in channel 2 is physically unreasonable or has not been calculated due to calibration problems
4	Brightness temperature in channel 3 is physically unreasonable or has not been calculated due to calibration problems
5	Brightness temperature in channel 4 is physically unreasonable or has not been calculated due to calibration problems
6	Brightness temperature in channel 5 is physically unreasonable or has not been calculated due to calibration problems
7	Brightness temperature in channel 6 is physically unreasonable or has not been calculated due to calibration problems
8	Brightness temperature in channel 7 is physically unreasonable or has not been calculated due to calibration problems
9	Brightness temperature in channel 8 is physically unreasonable or has not been calculated due to calibration problems
10	Brightness temperature in channel 9 is physically unreasonable or has not been calculated due to calibration problems
11	Brightness temperature in channel 10 is physically unreasonable or has not been calculated due to calibration problems
12	Brightness temperature in channel 11 is physically unreasonable or has not been calculated due to calibration problems
13	Brightness temperature in channel 12 is physically unreasonable or has not been calculated due to calibration problems
14	Brightness temperature in channel 13 is physically unreasonable or has not been calculated due to calibration problems
15	Brightness temperature in channel 14 is physically unreasonable or has not been calculated due to calibration problems
16	Brightness temperature in channel 15 is physically unreasonable or has not been calculated due to calibration problems
17	Brightness temperature in channel 16 is physically unreasonable or has not been calculated due to calibration problems
18	Brightness temperature in channel 17 is physically unreasonable or has not been calculated due to calibration problems
19	Brightness temperature in channel 18 is physically unreasonable or has not been calculated due to calibration problems
20	Brightness temperature in channel 19 is physically unreasonable or has not been calculated due to calibration problems
21	Brightness temperature in channel 20 is physically unreasonable or has not been calculated due to calibration problems
22	All channels are missing
23	Suspect
All 24	Missing value

0-33-035 - MAQC

Manual/automatic quality control

Code figure	Meaning
0	Automatic quality control passed and not manually checked
1	Automatic quality control passed and manually checked and passed
2	Automatic quality control passed and manually checked and deleted
3	Automatic quality control failed and manually not checked
4	Automatic quality control failed and manually checked and failed
5	Automatic quality control failed and manually checked and re-inserted
6	Automatic quality control flagged data as questionable and not manually checked
7	Automatic quality control flagged data as questionable and manually checked and failed
8	Manually checked and failed
9-14	Reserved
15	Missing value

0-33-037 - WCOE

Wind correlation error

Bit number	Meaning
1	U departure from guess
2	V departure from guess
3	U & V departure from guess
4	U acceleration
5	V acceleration
6	U & V acceleration
7	Possible land feature
8	U acceleration and possible land feature
9	V acceleration and possible land feature
10	U & V acceleration and possible land feature
11	Bad wind guess
12	Correlation failure
13	Search box off edge of area
14	Target box off edge of area
15	Pixel brightness out of bounds (noisy line)
16	Target outside of lat/long box
17	Target outside of pressure min/max
18	Autoeditor flagged slow vector
19	Autoeditor flagged vectors
All 20	Missing value

0-33-038 - QFGN

Quality flags for ground-based GNSS data

Bit number	Meaning
1	Total Zenith Delay quality is considered poor
2	GALILEO satellites used
3	GLONASS satellites used
4	GPS satellites used
5	Meteorological data applied
6	Atmospheric loading correction applied
7	Ocean tide loading applied
8	Climate quality data processing
9	Near-real time data processing
All 10	Missing value

0-33-039 - QFRO

Quality flags for radio occultation data

Bit number	Meaning
1	Non-nominal quality
2	Offline product
3	Ascending occultation flag
4	Excess Phase processing non-nominal
5	Bending Angle processing non-nominal
6	Refractivity processing non-nominal
7	Meteorological processing non-nominal
8	Open loop data included
9	Surface reflections detected
10	L2C GNSS signals used
11-13	Reserved
14	Background profile non-nominal
15	Background (i.e. not retrieved) profile present
All 16	Missing value

0-33-041 - AOFV

Attribute of following value

Code figure	Meaning
0	The following value is the true value
1	The following value is higher than the true value (the measurement hit the lower limit of the instrument)
2	The following value is lower than the true value (the measurement hit the higher limit of the instrument)
3	Missing value

0-33-042 - TLRFV

Type of limit represented by following value

Code figure	Meaning
0	Exclusive lower limit (>)
1	Inclusive lower limit (>=)
2	Exclusive upper limit (<)
3	Inclusive upper limit (=<)
4-6	Reserved
7	Missing value

0-33-043 - ASTC

AST confidence

Bit number	Meaning
1	Sea MDS. Nadir only SST retrieval used 3.7 Micron channel. Land MDS reserved
2	Sea MDS. Dual view SST retrieval used 3.7 Micron channel. Land MDS reserved.
3	Nadir view contains day time data
4	Forward view contains day time data
5-7	Reserved
All 8	Missing value

0-33-044 - ASARQI

ASAR quality information

Bit number	Meaning
1	Input data mean outside nominal range flag
2	Input data standard deviation outside nominal range flag
3	Number of input data gaps > threshold value
4	Percentage of missing lines > threshold value
5	Doppler centroid uncertain. Confidence measure < specific value
6	Doppler ambiguity estimate uncertain. Confidence measure < specific value
7	Output data mean outside nominal range flag
8	Output data standard deviation outside nominal range flag
9	Chirp reconstruction failed or is of low quality flag
10	Data set missing
11	Invalid downlink parameters
12	Azimuth cut-off iteration count. The azimuth cut-off fit did not converge within a minimum number of iterations
13	Azimuth cut-off fit did not converge within a minimum number of iterations
14	Phase information confidence measure. The imaginary spectral peak is less than a minimum threshold, or the zero lag shift is greater than a minimum threshold
All 15	Missing value

0-33-047 - MCOD

Measurement confidence data

Bit number	Meaning
1	Error detected and attempts to recover made
2	Anomaly in on-board data handling (OBDH) value detected
3	Anomaly in Ultra Stable Oscillator Processing (USOP) value detected
4	Errors detected by on-board computer
5	Automatic gain control (AGC) out of range
6	Rx delay fault. Rx distance out of range
7	Wave form samples fault identifier. Error
8	S-band anomaly error detected
9-11	Reserved
12	Brightness temperature (channel 1) out of range
13	Brightness temperature (channel 2) out of range
14	Reserved
15	Ku Ocean retracking error
16	S Ocean retracking error
17	Ku Ice 1 retracking error
18	S Ice 1 retracking error
19	Ku Ice 2 retracking error
20	S Ice 2 retracking error
21	Ku Sea Ice retracking error
22	Arithmetic fault error
23	Meteo data state. No map
24	Meteo data state. 1 map
25	Meteo data state 2 maps degraded
26	Meteo data state 2 maps nominal
27	Orbit propagator status for propagation mode, several errors
28	Orbit propagator status for propagation mode, warning detected
29	Orbit propagator status for initialisation mode, several errors
30	Orbit propagator status for initialisation mode, warning detected
All 31	Missing value

0-33-048 - CMSI

Confidence measure of SAR inversion

Code figure	Meaning
0	Inversion successful
1	Inversion not successful
2	Reserved
3	Missing value

0-33-049 - CMWR

Confidence measure of wind retrieval

Code figure	Meaning
0	External wind direction used during inversion
1	External wind direction not used during inversion
2	Reserved
3	Missing value

0-33-050 - GGQF

Global GTSPP quality flag

Code figure	Meaning
0	Unqualified
1	Correct value (all checks passed)
2	Probably good but value inconsistent with statistics (differ from climatology)
3	Probably bad (spike, gradient, ... if other tests passed)
4	Bad value, Impossible value (out of scale, vertical instability, constant profile)
5	Value modified during quality control
6-7	Reserved
8	Interpolated value
9	Good for operational use; Caution; check literature for other uses
10-14	Reserved
15	Missing value

0-33-052 - SORQ

S band ocean retracking quality

Bit number	Meaning
1	Value in data block 1 is invalid
2	Value in data block 2 is invalid
3	Value in data block 3 is invalid
4	Value in data block 4 is invalid
5	Value in data block 5 is invalid
6	Value in data block 6 is invalid
7	Value in data block 7 is invalid
8	Value in data block 8 is invalid
9	Value in data block 9 is invalid
10	Value in data block 10 is invalid
11	Value in data block 11 is invalid
12	Value in data block 12 is invalid
13	Value in data block 13 is invalid
14	Value in data block 14 is invalid
15	Value in data block 15 is invalid
16	Value in data block 16 is invalid
17	Value in data block 17 is invalid
18	Value in data block 18 is invalid
19	Value in data block 19 is invalid
20	Value in data block 20 is invalid
All 21	Missing value

0-33-053 - KORQ

Ku band ocean retracking quality

Bit number	Meaning
1	Value in data block 1 is invalid
2	Value in data block 2 is invalid
3	Value in data block 3 is invalid
4	Value in data block 4 is invalid
5	Value in data block 5 is invalid
6	Value in data block 6 is invalid
7	Value in data block 7 is invalid
8	Value in data block 8 is invalid
9	Value in data block 9 is invalid
10	Value in data block 10 is invalid
11	Value in data block 11 is invalid
12	Value in data block 12 is invalid
13	Value in data block 13 is invalid
14	Value in data block 14 is invalid
15	Value in data block 15 is invalid
16	Value in data block 16 is invalid
17	Value in data block 17 is invalid
18	Value in data block 18 is invalid
19	Value in data block 19 is invalid
20	Value in data block 20 is invalid
All 21	Missing value

0-33-054 - OQRAP

Overall quality of retrieved atmospheric profile

Code figure	Meaning
0	Profile values good
1	Profile values suspected
2	Reserved
3	Profile values not good
4-6	Reserved
7	Missing value

0-33-055 - WVQF

Wind vector quality flag

Bit number	Meaning
1-10	Reserved
11	Ocean sigma-0 is not available for wind retrievals
12	Background wind is not available
13	Background model detect land
14	Background model detect ice
15	Sigma-0 is not land/ice free
16	Sigma-0 land contamination
17	Sigma-0 ice contamination
18	Not enough azimuthal diversity
19	Inversion is not done
20	Overall WVC flag
21	Inversion is attempted (flag is set)
22	Rain flag is attempted (flag is set)
23	Rain is detected
All 24	Missing value

0-33-056 - SZQF

Sigma-0 quality flag

Bit number	Meaning
1-7	Reserved
8	Ascending
9	VV polarisation
10	Fore of spacecraft
11	Land
12	Poor sigma-0 (summary)
13	Invalid sigma-0 (summary)
14	Poor BT
15	Invalid BT
16	Land-sea boundary
17	Negative sigma-0
18-20	Reserved
21	Ice
22	Missing data at a given latitude-longitude for sea-ice flagging process for 2 or more days
23	Ice-ocean contamination
All 24	Missing value

0-33-060 - QGFQ

GqisFlagQual - individual IASI-System quality flag

Code figure	Meaning
0	Good
1	Bad
2	Reserved
3	Missing value

0-33-066 - AMVQ

AMV quality flag

Bit number	Meaning
1-19	Reserved
20	Good wind, but an alternative channel used for feature tracking
21	Good wind, but an alternative set of channels used for the determination of cloud-top height/AMV height assignment
22	Correlation surface constraint fails
23	Reserved
All 24	Missing value

0-33-070 - SBUVTOQ

Total ozone quality

Code figure	Meaning
0	Good retrieval
1	Bad aerosol information flag or NOAA-16 radiance anomaly
2	Solar zenith angle greater than 84 degrees
3	380nm residue greater than limit
4	Ozone inconsistency
5	Difference between profile ozone and step 3 total ozone exceeds threshold (set to 25 DU)
6	Step 1 ozone iteration did not converge
7	Any channel residue greater than 16 or bad radiance
8	Insufficient pixels - not processed
9	First guess good - ozone forecast data used
10	High cloud in pixel - not processed
11	Successful ozone retrieval
12	Unsuccessful ozone retrieval
13-14	Reserved
15	Missing value

0-33-071 - SBUVPOQ

Profile ozone quality

Code figure	Meaning
0	Good retrieval
1	Solar zenith angle greater than 84 degrees
2	Difference between step 3 and profile total ozone greater than limit (25 DU)
3	Average final residue for wavelengths used in retrieval greater than threshold
4	Final residue greater than 3 times a priori error
5	Difference between retrieved and a priori greater than 3 times a priori error
6	Non-convergent solution
7	Upper level profile anomaly or stray light anomaly
8	Initial residue greater than 18.0 N-value units
9-14	Reserved
15	Missing value

0-33-072 - GOMEEF

Ozone error

Code figure	Meaning
0	Good retrieval
1	Reflectivity out of range
2	Larger Pixels (Number of cross-track pixels less than 32) or backward scans error
3	Solar zenith angle greater than 88
4	Latitude/longitude out of range
5	Viewing zenith angle or solar zenith angle out of range
6	Step-one process failed in general
7	First guess ozone out of range
8	Too many iterations (exceed 8)
9	Step-one residue calculation failed
10	Step-two process failed in general
11	First guess ozone profile out of range
12	Step-two ozone value out of range
13	Step-two residue calculation failed
14	Step-three process failed in general
15	Polarization Correction Accuracy Alert
16	Radiance or irradiance less or equal to zero
17-30	Reserved
31	Missing value

0-33-075 - NSQF

Scan-level quality flags

Bit number	Meaning
1	Gap in Raw Data Record (RDR) data detected (i.e., missing scan(s) preceding the current scan)
2	Recorded time is not in sequence (i.e., the scan start time is out of sequence)
3	Lamda monitored calculation cannot be updated
4	The measured temperatures of any instrument components (e.g., beam-splitter, scan mirror, scan baffle, etc.) are outside the allowable ranges
5	At least one of the monitored instrument temperatures has drifted more than a specified tolerance value
6-12	Reserved
All 13	Missing value

0-33-076 - NCQF

Calibration quality flags

Bit number	Meaning
1	Lunar intrusion on first deep space view
2	Lunar intrusion on second deep space view
3-8	Reserved
All 9	Missing value

0-33-077 - NFQF

Field-of-view quality flags

Bit number	Meaning
1	Degraded sensor data record quality
2	Invalid sensor data record quality
3	Invalid sensor data record geolocation information
4	Degraded radiometric calibration
5	Invalid radiometric calibration
6	Degraded spectral calibration
7	Invalid spectral calibration
8	Fringe count error detected and corrected
9	Day/night indicator
10	Invalid raw data record data
11	Significant fringe count error detected
12	Bit trim failed
13-18	Reserved
All 19	Missing value

0-33-078 - NGQI

Geolocation quality

Code figure	Meaning
0	Nominal - altitude and Ephemeris data available
1	Missing at most a small gap of altitude and Ephemeris data
2	Missing more than a small gap of altitude and Ephemeris data, but no more than a granule boundary
3	Missing more than a granule boundary of altitude and Ephemeris data
4-14	Reserved
15	Missing value

0-33-079 - ATMSGQ

Granule level quality flags

Bit number	Meaning
1-5	Reserved
6	The #1-#7 health checks failed
7	The #8-#15 health checks failed
8	The #16-#23 health checks failed
9	The #24-#31 health checks failed
10	The #32-#39 health checks failed
11	The #40-#47 health checks failed
12	The #48-#55 health checks failed
13	The #56-#63 health checks failed
14	The #64-#70 health checks failed
15	Quadratic correction applied to the radiometric transfer function for non-linearity correction
All 16	Missing value

0-33-080 - ATMSSQ

Scan level quality flags

Bit number	Meaning
1-6	Reserved
7	Divide-by-zero condition or computation loop failed to converge in the K/Ka and V (KAV) band platinum resistance temperature
8	Divide-by-zero condition or computation loop failed to converge in the WG band platinum resistance temperature
9	Divide-by-zero condition or computation loop failed to converge in the K/Ka, V, W, G band receiver shelf platinum resistance temperature K temperature computation
10	Out of range condition for the K/Ka and V band platinum resistance temperature
11	Out of range condition for the WG band platinum resistance temperature
12	KAV platinum resistance temperature inconsistency
13	WG platinum resistance temperature inconsistency
14	Time sequence error
15	Data gap - missing scan(s) preceding the current scan
16	KAV platinum resistance temperature sufficiency - insufficient KAV platinum resistance temperature data are available
17	WG platinum resistance temperature sufficiency - insufficient WG platinum resistance temperature data are available
18	Space view antenna position error
19	Blackbody antenna position error
All 20	Missing value

0-33-081 - ATMSCHQ

Channel data quality flags

Bit number	Meaning
1-2	Reserved
3	Moon in space view
4	Gain error - the lowest blackbody count is smaller than or equal to the highest space view count in a scan
5	Calibration with fewer than preferred samples
6	Space view data sufficiency check - insufficient space view samples are available
7	Blackbody view data sufficiency check - insufficient blackbody view samples are available
8	Out of range condition for the space view
9	Out of range condition for the blackbody view
10	Space view inconsistency
11	Blackbody view inconsistency
All 12	Missing value

0-33-082 - VIIRGQ

Geolocation quality flags

Bit number	Meaning
1-5	Reserved
6	Within South Atlantic anomaly
7	Invalid input data (indicates that any of the spacecraft ephemeris or attitude data is invalid)
8	Bad pointing (indicates that the sensor LOS does not intersect the geoid, is near the limb, has invalid sensor angles or other similar condition)
9	Bad terrain (indicates that the algorithm could not obtain a valid terrain value)
10	Invalid solar angles
11	Missing at most a small gap of altitude and ephemeris data
12	Missing more than a small gap of altitude and ephemeris data, but no more than a granule boundary
13	Missing more than a granule boundary of altitude and ephemeris data
14	The number of encoder pulse values per delta time is not as expected
15	Solar eclipse during Earth view scan
All 16	Missing value

0-33-083 - VIIRSQ

Radiance data quality flags

Bit number	Meaning
1-5	Reserved
6	Pixel is affected by radio frequency interference
7	Poor calibration quality due to bad space view offsets, on-board calibration view offsets, etc. or use of a previous calibration view
8	Saturated pixel
9	Missing data - data required for calibration processing is not available for processing
10	Calibrated pixel radiance out of range
11	Calibrated pixel reflectance or EBBT out of range
12	The moon has corrupted the space view
13	Scan data is not present (no valid data)
14	Quality for this scan-line is reduced. The value is determined by the combined number of steps required to find a replacement for thermistor or calibration source data.
15	Bad detector
All 16	Missing value

0-33-084 - SSTPQ

Pixel level quality flags

Bit number	Meaning
1-5	Reserved
6	Bulk SST outside of validation range
7	Skin SST outside of validation range
8	Sensor zenith angle > 40 degrees (pixel is not within 40 degrees of nadir and therefore is not of high quality)
9	Degradation - Horizontal Cell Size (HCS) > 1.3 km, swath width > 1700 km, sensor zenith angle > 50.3 degrees
10	Exclusion - no ocean in pixel
11	Degradation - Aerosol Optical Thickness (AOT) > 0.6 (AOT in horizontal cell > 0.6 on the slant path (AOT @ 550 nm))
12	Exclusion - Aerosol Optical Thickness (AOT) > 1.0 (AOT in horizontal cell > 1.0 on the slant path (AOT @ 550 nm))
13	Sun glint present in pixel
14	Ice concentration threshold exceeded (SST not retrieved due to ice concentration exceeding threshold in system spec)
15	Thin cirrus detected in pixel
All 16	Missing value

0-33-085 - AOTQ

Aerosol optical thickness quality flags

Bit number	Meaning
1-3	Reserved
4	Angstrom exponent is outside of the system specification range
5	Excluded, Angstrom exponent for AOT at 550 nm < 0.15
6	Bright surface in cell (if over land), or shallow or turbid water in cell (if over ocean)
7	Low sun, excluded, Solar Zenith Angle > 80 degrees
8	Low sun, degraded, 65 degrees < Solar Zenith Angle <= 80 degrees
9	Fire detected in cell
10	Snow/Ice in cell
11	Cloud shadow in cell
12	Sun glint in cell
13	Bad SDR data present in horizontal cell (quality of AOT/APSP degraded or AOT/APSP not retrieved due to bad SDR data in horizontal cell)
14	Cirrus contamination in cell
15	Cloud adjacent to cell
16	Cloud contamination in cell
17	AOT is outside of the system specification range
All 18	Missing value

0-33-086 - RETRQ

Quality of pixel level retrieval

Code figure	Meaning
0	Not retrieved
1	Excluded
2	Degraded
3	High quality
4-6	Reserved
7	Missing value

0-33-087 - XSAA

Extent of satellite within South Atlantic anomaly (based on climatological data)

Code figure	Meaning
0	Less than or equal to 10%
1	Greater than 10% but less than or equal to 20%
2	Greater than 20% but less than or equal to 30%
3	Greater than 30% but less than or equal to 40%
4	Greater than 40% but less than or equal to 50%
5	Greater than 50% but less than or equal to 60%
6	Greater than 60% but less than or equal to 70%
7	Greater than 70% but less than or equal to 80%
8	Greater than 80%
9-14	Reserved
15	Missing value

0-33-088 - OTCQ

Ozone total column quality flag

Bit number	Meaning
1-5	Reserved
6	Surface reflectivity out of range
7	Residual too large
8	Aerosol index limit exceeded
9	Solar eclipse present (All or part of the instantaneous field-of-view is affected by a solar eclipse, umbra or penumbra viewing)
10	Sun glint present within instantaneous field-of-view
11	Snow or ice surface is within the instantaneous field-of-view
12	Solar zenith angle in excluded (night) condition (solar zenith angle >= 88 degrees)
13	Solar zenith angle in degraded condition (80 degrees <= solar zenith angle < 88 degrees)
14	SO₂ index > 6 DU (degraded condition)
15	Residues are not consistent (indicates whether the residues from the 22 wavelengths
16	Ozone triplet selection is not consistent within retrieval (ozone triplet consistency)
17	Input data quality is not good
All 18	Missing value

0-33-092 - BSOQ

Band specific ocean quality flag

Bit number	Meaning
1	Altimeter operating
2	MicroWave Radiometer (MWR) operating
3-8	Reserved
All 9	Missing value

0-33-093 - QFGNX

Extended quality flags for ground-based GNSS data

Bit number	Meaning
1	Path delay quality is considered poor
2	GALILEO satellites used
3	GLONASS satellites used
4	GPS satellites used
5	BeiDou satellites used
6-8	Reserved
9	Meteorological data applied
10	Atmospheric loading correction applied
11	Ocean tide loading applied
12	Second order ionosphere corrections applied
13	Third order ionosphere corrections applied
14	PPP solution
15	Gradients applied to path delay
16	Multipath corrections applied to path delay
17	Residual applied to path delay
18	Climate quality data processing
19	Re-processing
20	Post-processing
21	Near-real time data processing
22	Real time data processing
23-30	Reserved
All 31	Missing value

0-33-094 - NCQCF

Calibration quality control flags

Bit number	Meaning
1-15	Reserved
16	Non-ocean
17	Lunar or solar intrusion
18	Spacecraft maneuver
19	Cold calibration consistency
20	Warm calibration consistency
21	Descending
22	Night
23	Payload rear orientation
All 24	Missing value

0-33-095 - MWITF

MWI temperatures flag

Bit number	Meaning
1	PRTs or THMs temperatures are missing or with anomalous readings
2	PRTs temperatures of OBCT used in the radiometric calibrations are missing or with anomalous readings
3	THMs temperatures of SVR used in the radiometric calibrations are missing or with anomalous readings
4	THMs temperatures of main reflector are missing or with anomalous readings
5	THMs temperatures of the racetrack are missing or with anomalous readings
6	THMs temperatures of the receivers are missing or with anomalous readings
7	Reserved
All 8	Missing value

0-33-096 - MWICF

MWI calibration flag

Bit number	Meaning
1	Radiometric calibration failed or is degraded
2	OBCT view counts averaged value over scans is missing (this is valid for the high-reference calibration load when the back-up calibration is applied for channels MWI-1 to MWI-3)
3	Cold space view counts averaged value over scans is missing (this is valid for the low-reference calibration load when the back-up calibration is applied for channels MWI-1 to MWI-3)
4	OBCT view counts averaged value over scans is degraded due to missing or anomalous counts values (this is valid for the high-reference calibration load when the back-up calibration is applied for channels MWI-1 to MWI-3)
5	Cold space view counts averaged value over scans is degraded due to missing or anomalous counts values (this is valid for the low-reference calibration load when the back-up calibration is applied for channels MWI-1 to MWI-3)
6	OBCT view radiance averaged value over scans is missing (this is valid for the high-reference calibration load when the back-up calibration is applied for channels MWI-1 to MWI-3)
7	Cold space view radiance averaged value over scans is missing (this is valid for the low-reference calibration load when the back-up calibration is applied for channels MWI-1 to MWI-3)
8	OBCT view radiance averaged value over scans is degraded due to missing or anomalous values (this is valid for the high-reference calibration load when the back-up calibration is applied for channels MWI-1 to MWI-3)
9	Cold space view radiance averaged value over scans is degraded due to missing or anomalous values (this is valid for the low-reference calibration load when the back-up calibration is applied for channels MWI-1 to MWI-3)
10	Non-linearity parameter computed using noise diodes is missing (meaningful only for channels MWI-1 to MWI-3)
11	Non-linearity parameter computed using noise diodes is degraded (meaningful only for channels MWI-1 to MWI-3)
12	PRTs or THMs temperatures of current scan are missing or with anomalous readings
13	Moon intrusion in cold space degraded calibration (less than Nvalid_c valid samples are not affected by Moon for the considered channel and scan)
14	Back-up calibration with noise diodes performed (meaningful only for MWI-1 to MWI-3)
15	Degraded receiver temperatures lead to degraded calibration
All 16	Missing value

0-33-097 - MWISQF

MWI scan quality flag

Bit number	Meaning
1	Scan is degraded in raw data record
2	Time sequence error
3	Current scan is acquired after a gap
4	Scan is in period of initialization of calibration of data averages over scans (because of cold start/cold end, missing warm/cold L0 packets or data gaps)
5	Moon intrusion angle in space view below threshold for at least one channel
6	Moon correction is applied but is degraded for at least one channel
7	Sun glint angle below threshold for at least one channel
8	RFI contamination in the Earth view or RFI packet missing for the considered scan (only for MWI-1V and MWI-1H)
9	Satellite manoeuvre occurs in current scan
10	Missing warm or cold L0 packets for the considered scan
11-15	Reserved
All 16	Missing value

0-33-098 - MWIDQF

MWI data quality flag

Bit number	Meaning
1	MWI spectral radiance data of channel is missing or degraded
2	Earth view counts of channel within scan are missing or out of bounds
3	Radiometric calibration failed or is degraded
4	Geolocation of channel is erroneous or degraded
5	NEDT of this data granule is above threshold
6	MR emissivity and spillover correction failed or degraded
7	MR sidelobe correction failed or degraded
8	Channel is defective
All 9	Missing value

0-33-099 - MWINSF

MWI navigation status flag

Bit number	Meaning
1	Geolocation of channel is erroneous or degraded
2	Time sequence error
3	Missing or corrupted NAVATT file lead to the use of predicted orbit files
4	NAVATT attitude data is degraded
5	Time correlation error (missing IERS bulletin)
6	Invalid ephemeris or attitude data
7	Satellite manoeuvre occurs in current scan
8	Non-nominal attitude with yaw, pitch, roll error above threshold Delta_YPR (nominally these angles are 0.0 deg for YSM)
9	Sampling time not within prescribed limits
10	Scan velocity not within prescribed limits
11	Bad pointing (sensor LOS does not intersect ellipsoid or not compliant with observation azimuth/elevation limits)
12	Invalid solar azimuth/zenith angles computed
13	DEM geolocation not performed (with use_DEM_flag = 1)
14	Error in land fraction computation
15	Predicted orbit file not available
All 16	Missing value

0-33-100 - ICITF

ICI temperatures flag

Bit number	Meaning
1	PRTs or THMs temperatures are missing or with anomalous readings
2	PRT temperatures of OBCT used in the radiometric calibrations are missing or with anomalous readings
3	PRT temperatures of SVR used in the radiometric calibrations are missing or with anomalous readings
4	PRT temperatures of IRP and sun shield are missing or with anomalous readings
5	THMs temperature of back-end are missing or with anomalous readings
6	THMs temperature of front-end are missing or with anomalous readings
7	PRT temperatures of main reflector are missing or with anomalous readings
All 8	Missing value

0-33-101 - ICICF

ICI calibration flag

Bit number	Meaning
1	Radiometric calibration failed or is degraded
2	OBCT view counts averaged value over scans is missing
3	Cold space view counts averaged value over scans is missing
4	OBCT view counts averaged value over scans is degraded due to missing or anomalous counts values
5	Cold space view counts averaged value over scans is degraded due to missing or anomalous counts values
6	OBCT view radiance averaged value over scans is missing
7	Cold space view radiance averaged value over scans is missing
8	OBCT view radiance averaged value over scans is degraded due to missing or anomalous values
9	Cold space view radiance averaged value over scans is degraded due to missing or anomalous values
10	PRTs or THMs temperatures of current scan are missing or with anomalous readings
11	Moon intrusion in cold space degraded calibration (less than Nvalid_c valid samples are not affected by Moon for the considered channel and scan)
12	Degraded or missing Back-end Temperatures lead to degraded calibration
13-15	Reserved
All 16	Missing value

0-33-102 - ICISQF

ICI scan quality flag

Bit number	Meaning
1	Scan is degraded in raw data records
2	Time sequence error
3	Current scan is acquired after a gap
4	Scan is in period of initialization of calibration of data averages over scans (because of cold start/cold end, missing warm/cold L0 packets or data gaps)
5	Moon intrusion angle in space view below threshold for at least one channel
6	Moon correction is applied but is degraded for at least one channel
7	Sun glint angle below threshold for at least one channel
8	Satellite manoeuvre occurs in current scan
9	Missing warm or cold L0 packets for the considered scan
10-15	Reserved
All 16	Missing value

0-33-103 - ICIDQF

ICI data quality flag

Bit number	Meaning
1	ICI spectral radiance data of channel is missing or degraded
2	Earth view counts of channel within scan are missing or out of bounds
3	Radiometric calibration failed or is degraded
4	Geolocation of channel is erroneous or degraded
5	NEDT of this data granule is above threshold
6	MR emissivity and spillover correction failed or degraded
7	MR sidelobe correction failed or degraded
8	Channel is defective
All 9	Missing value

0-33-104 - ICINSF

ICI navigation status flag

Bit number	Meaning
1	Geolocation of channel is erroneous or degraded
2	Time sequence error
3	Missing or corrupted NAVATT file lead to the use of predicted orbit files
4	NAVATT attitude data is degraded
5	Time correlation error (missing IERS bulletin)
6	Invalid ephemeris or attitude data
7	Satellite manoeuvre occurs in current scan
8	Non-nominal attitude with yaw, pitch, roll error above threshold Delta_YPR (nominally these angles are 0.0 deg for YSM)
9	Sampling time not within prescribed limits
10	Scan velocity not within prescribed limits
11	Bad pointing (sensor LOS does not intersect ellipsoid or not compliant with observation azimuth/elevation limits)
12	Invalid solar azimuth/zenith angles computed
13	DEM geolocation not performed (with use_DEM_flag = 1)
14	Error in land fraction computation
15	Predicted orbit file not available
All 16	Missing value

0-33-105 - ICIPF

ICI processing flags

Bit number	Meaning
1	Moon contamination correction on cold space view counts is not applied
2	MR spillover correction relative to emission by instrument platform is not applied
3	SVR spillover correction relative to emission by instrument platform is not applied
4	SVR sidelobe correction is not applied
5	Full cross-polarization correction including small angles correction is applied
6	Dynamic sidelobe correction is not applied for ICI-1
7	Dynamic sidelobe correction is not applied for ICI-2
8	Dynamic sidelobe correction is not applied for ICI-3
9	Dynamic sidelobe correction is not applied for ICI-4 V and ICI-4 H
10-15	Reserved
All 16	Missing value

0-33-106 - MWIPF

MWI processing flags

Bit number	Meaning
1	Moon contamination correction on cold space view counts is not applied
2	Calibration with noise diodes is not applied for at least one channel among MWI-1 to MWI-3
3	MR spillover correction relative to emission by instrument platform is not applied
4	SVR spillover correction relative to emission by instrument platform is not applied
5	SVR sidelobe correction is not applied
6	Full cross-polarization correction including small angles correction is applied
7	RFI correction in the Earth view is not applied
8	Dynamic sidelobe correction is not applied for MWI-1
9	Dynamic sidelobe correction is not applied for MWI-2
10	Dynamic sidelobe correction is not applied for MWI-3
11	Dynamic sidelobe correction is not applied for MWI-4
12	Dynamic sidelobe correction is not applied for MWI-8
13-15	Reserved
All 16	Missing value

0-33-107 - MWSSPF

MWS scan line processing flags

Bit number	Meaning
1	Non-nominal scan due to gap
2	Non-nominal warm target temperature
3	Non-nominal along-track averaging of warm target temperatures
4	Non-nominal instrument temperature
5	Non-nominal along-track averaging of instrument temperatures
6	Non-nominal rotating reflector temperature
7	Non-nominal along-track averaging of rotating reflector temperatures
8	Non-nominal antenna scan angle Earth view
9	Non-nominal antenna scan angle cold view
10	Non-nominal antenna scan angle warm view
11	Non-nominal geolocation
12	Non-nominal LSM and DEM assignment
13	Ongoing satellite manoeuvre
14	Redundant 50GHz rec and PRT set in use
15	Reserved
All 16	Missing value

0-33-108 - MWSNSF

MWS navigation status flags

Bit number	Meaning
1	Non-nominal condition
2	Scan not processed
3	Geolocation not successful
4	Orbit not initialized with NAVATT
5	Attitude not initialized with NAVATT
6	Predicted orbit file ingest error
7	Manoeuvre
8	IERS bulletin A ingest error
9	Time correlation and EOP initialized with predicted orbit file
10	Full accuracy of NAVATT initialized attitude not reached
11	Pointing mode not YSM
12	NAVATT ingest error
13-15	Reserved
All 16	Missing value

0-33-109 - MWSOQF

MWS overall quality flags

Bit number	Meaning
1	Missing input product(s)
2	Data gap(s)
3	Corrupted input product(s)
4	Instrument anomaly
5	Missing or degraded auxiliary data
6	Degraded due to manoeuvre
7-15	Reserved
All 16	Missing value

0-33-110 - MWSCPF

MWS channel processing flags

Bit number	Meaning
1	Channel is off
2	Non-nominal mean warm view count
3	Non-nominal along-track averaging of warm view counts
4	Non-nominal mean cold view count
5	Non-nominal along-track averaging of cold view counts
6	Non-nominal calibration coefficients
7	Moon intrusion in some of the cold view FOVS
8	Non-nominal processing or excessive value for NEDT (cold or warm)
All 9	Missing value

0-33-111 - SCAQF

SCA quality flags

Bit number	Meaning
1	Predicted orbit file used
2	Manoeuvre taking place
3	Reserved
4	Satellite is not in yaw steering mode<
5	Transponder signal is present
6	Noise estimate is poor
7	Noise estimate is very poor
8	Noise outlier is present
9	Ancillary data is poor
10	Ancillary data is very poor
11	Characterisation table limits exceeded
12	Power-gain estimate is poor
13	Power-gain estimate is very poor
14	Power-gain out of limits
15	Waveguide loss estimate is poor
16	Waveguide loss estimate is very poor
17	Waveguide table limits exceeded
18	Echo is out of ADC range
19	Reserved
20	Missing normalisation tables
21	Number of samples in window is low
22	Number of samples in window is very low
23	Negative backscatter in resampled data
24	Possible interference from solar array
25-27	Reserved
28	Land
29	Water
30	Ascending pass
31	Descending pass
All 32	Missing value

0-33-113 - INGGQF

IASI-NG general quality flags

Bit number	Meaning
1	General quality (0 if bits 2 to 11 are all 0, 1 otherwise)
2	Sounder radiometric
3	Sounder spectral
4	Imager geometric
5	Imager classification
6	Imager radiometric
7	General sounder
8	Presence of mathematical errors
9	TM data missing
10	TM data corrupt
11	TM integrity instrument
12-15	Reserved
All 16	Missing value

0-33-114 - OOBC

Out of bounds check

Bit number	Meaning
1	Temperature profile
2	Water vapour profile
3	Ozone profile
4	Surface skin temperature
5	Surface air temperature
6	Surface air dew point temperature
7	Surface pressure
8	Surface skin temperature error estimate (quality indicator)
9	Surface air temperature error estimate (quality indicator)
10	Surface air dew point temperature error estimate (quality indicator)
11	Surface pressure error estimate (quality indicator)
12	Surface emissivity coarse infrared spectrum
13	Surface emissivity microwave spectrum
14	CO2 profile
15	CH4 profile
16	N2O profile
All 17	Missing value

0-33-115 - AODQ

Aerosol optical depth quality information

Code figure	Meaning
0	Good
1	Cloudy nadir
2	Cloudy oblique
3	Glint nadir
4	Glint oblique
5-30	Reserved
31	Missing value

0-33-116 - FGBC

First guess in bounds check

Bit number	Meaning
1	Temperature profile
2	Water vapour profile
3	Ozone profile
4	Surface skin temperature
5	Surface air temperature
6	Surface air dew point temperature
7	Surface pressure
8	Surface skin temperature error estimate (quality indicator)
9	Surface air temperature error estimate (quality indicator)
10	Surface air dew point temperature error estimate (quality indicator)
11	Surface pressure error estimate (quality indicator)
12-10	Reserved
11	Surface pressure error estimate (quality indicator)
12	Surface emissivity coarse infrared spectrum
13	Surface emissivity microwave spectrum
14	CO2 profile
15	CH4 profile
16	N2O profile
All 17	Missing value

0-33-117 - INBC

In bounds check

Bit number	Meaning
1	Temperature profile
2	Water vapour profile
3	Ozone profile
4	Surface skin temperature
5	Surface air temperature
6	Surface air dew point temperature
7	Surface pressure
8	Surface skin temperature error estimate (quality indicator)
9	Surface air temperature error estimate (quality indicator)
10	Surface air dew point temperature error estimate (quality indicator)
11	Reserved
12	Surface emissivity coarse infrared spectrum
13	Surface emissivity microwave spectrum
14	CO2 profile
15	CH4 profile
16	N2O profile
All 17	Missing value

0-33-192 - QMGP

SDMEDIT quality mark for geopotential

Code figure	Meaning
0	Hold (keep) flag placed on datum by either the NCEP Senior Duty Meteorologist (SDM) for non-marine reports, or by manual and/or automated quality control checks for marine reports (should have the highest influence in, and always be used by, the assimilating analyses)
1	Datum determined to be of good quality based on manual and/or automated quality control checks (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
2	Datum was either not checked, or determined to be of neutral quality based on manual and/or automated quality control checks (should have average influence in the assimilating analyses, subject to possible further quality control checks)
3	Datum determined to be of suspect quality based on manual and/or automated quality control checks (should have less than average influence in the assimilating analyses, subject to possible further quality control checks)
4	Datum was corrected by manual and/or automated quality control checks and is now determined to be of good quality (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
5-11	Reserved
12	Datum is on a manually-updated reject list (should never be used by the assimilating analyses
13	Datum determined to be of bad quality based on automated quality control checks (should never by used by the assimilating analyses)
14	Purge (reject) flag placed on datum by either the NCEP SDM for non-marine reports, or by manual and/or automated quality control checks for marine reports (should never by used by the assimilating analyses)
15	Missing value

0-33-193 - QMAT

SDMEDIT/QUIPS quality mark for air temperature

Code figure	Meaning
0	Hold (keep) flag placed on datum by either the NCEP Senior Duty Meteorologist (SDM) for non-marine reports, or by manual and/or automated quality control checks for marine reports (should have the highest influence in, and always be used by, the assimilating analyses)
1	Datum determined to be of good quality based on manual and/or automated quality control checks (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
2	Datum was either not checked, or determined to be of neutral quality based on manual and/or automated quality control checks (should have average influence in the assimilating analyses, subject to possible further quality control checks)
3	Datum determined to be of suspect quality based on manual and/or automated quality control checks (should have less than average influence in the assimilating analyses, subject to possible further quality control checks)
4	Datum was corrected by manual and/or automated quality control checks and is now determined to be of good quality (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
5-11	Reserved
12	Datum is on a manually-updated reject list (should never be used by the assimilating analyses
13	Datum determined to be of bad quality based on automated quality control checks (should never by used by the assimilating analyses)
14	Purge (reject) flag placed on datum by either the NCEP SDM for non-marine reports, or by manual and/or automated quality control checks for marine reports (should never by used by the assimilating analyses)
15	Missing value

0-33-194 - QMDD

SDMEDIT/QUIPS quality mark for moisture

Code figure	Meaning
0	Hold (keep) flag placed on datum by either the NCEP Senior Duty Meteorologist (SDM) for non-marine reports, or by manual and/or automated quality control checks for marine reports (should have the highest influence in, and always be used by, the assimilating analyses)
1	Datum determined to be of good quality based on manual and/or automated quality control checks (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
2	Datum was either not checked, or determined to be of neutral quality based on manual and/or automated quality control checks (should have average influence in the assimilating analyses, subject to possible further quality control checks)
3	Datum determined to be of suspect quality based on manual and/or automated quality control checks (should have less than average influence in the assimilating analyses, subject to possible further quality control checks)
4	Datum was corrected by manual and/or automated quality control checks and is now determined to be of good quality (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
5-11	Reserved
12	Datum is on a manually-updated reject list (should never be used by the assimilating analyses
13	Datum determined to be of bad quality based on automated quality control checks (should never by used by the assimilating analyses)
14	Purge (reject) flag placed on datum by either the NCEP SDM for non-marine reports, or by manual and/or automated quality control checks for marine reports (should never by used by the assimilating analyses)
15	Missing value

0-33-195 - QMWN

SDMEDIT/QUIPS quality mark for wind (does not include NESDIS produced satellite winds)

Code figure	Meaning
0	Hold (keep) flag placed on datum by either the NCEP Senior Duty Meteorologist (SDM) for non-marine reports, or by manual and/or automated quality control checks for marine reports (should have the highest influence in, and always be used by, the assimilating analyses)
1	Datum determined to be of good quality based on manual and/or automated quality control checks (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
2	Datum was either not checked, or determined to be of neutral quality based on manual and/or automated quality control checks (should have average influence in the assimilating analyses, subject to possible further quality control checks)
3	Datum determined to be of suspect quality based on manual and/or automated quality control checks (should have less than average influence in the assimilating analyses, subject to possible further quality control checks)
4	Datum was corrected by manual and/or automated quality control checks and is now determined to be of good quality (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
5-11	Reserved
12	Datum is on a manually-updated reject list (should never be used by the assimilating analyses
13	Datum determined to be of bad quality based on automated quality control checks (should never by used by the assimilating analyses)
14	Purge (reject) flag placed on datum by either the NCEP SDM for non-marine reports, or by manual and/or automated quality control checks for marine reports (should never by used by the assimilating analyses)
15	Missing value

0-33-200 - WSEQC1

WindSat EDR quality flag-1

Bit number	Meaning
1	Low confidence for cloud liquid water retrieval quality
2	No retrieval for water vapor
3	Low confidence for water vapor retrieval quality
4	No retrieval for SST
5	Low confidence for SST retrieval quality
6	No retrieval for wind direction
7	Low confidence for wind direction retrieval quality
8	No retrieval for wind speed
9	Low confidence for wind speed retrieval quality
10	Wind speed is > 25 m/s (too high for accurate retrieval)
11	Wind speed is < 5 m/s (too low for accurate wind direction retrieval)
12	Insufficient data was available for reliable beam averaging to be performed
13	SEC-based Faraday correction
14	Geolocation-based Faraday correction
15	Warm load correction applied to one or more channels
16	Cold load correction applied to one or more channels
17	Satellite altitude transient
18	Threshold exceeded for sun glint angle
19	10 GHz RFI flag
20	Reserved
21	Salinity out-of-bounds or unknown
22	Inland lakes and sheltered bodies of water (e.g. Great Lakes, Lake Victoria, Red Sea, Persian Gulf, etc.)
23	Reserved
24	Threshold exceeded for land contamination
25	Ice flag
26	Rain flag based on TBs (or from SDR processor)
27	Rain flag generated by the EDR Processor
28	6.8 GHz channels not available or not used in the retrieval; SST retrievals are less accurate particularly for SST < 15 degrees C
29	Reserved
30	Low confidence: Union of bits 22, 24, 25, 26 and 28
All 31	Missing value

0-33-202 - UARDC

Radiosonde report diagnostic code

Code figure	Meaning
0-39	Reserved
40	Report not filed
41	Reserved
42	Ground equipment failure
43	Observation delayed
44	Power failure
45	Unfavorable weather conditions
46	Low maximum altitude (< 500 meters above ground)
47	Leaking balloon
48	Ascent not authorized for this period
49	Alert
50	Ascent did not extend above the 400 hPa level
51	Balloon forced down by icing conditions
52	Balloon forced down by precipitation
53	Atmospheric interference
54	Local interference
55	Fading signal
56	Weak signal
57	Preventive maintenance
58	Flight equipment failure (transmitter, balloon, attachments, etc.)
59	Reason for missing or incomplete report not specified
60-79	Reserved
80	Corrected report for the entire report (first plus second transmissions)
81	Corrected report for the entire first transmission
82	Corrected report for the entire second transmission
83-109	Reserved
110	Id wind level flag has illegal value
111	TEMP mandatory level indicator not in expected location
112	TEMP significant level indicator not in expected location
113	PILOT mandatory level pressure group not in expected location
114	PILOT significant level height group not in expected location
115	Group has invalid length
116	Recovery attempts were halted (too many errors)
117	PILOT significant level height is above 100 mb in part BB
118	PILOT significant level height is below 100 mb in part DD
119	Too many TEMP mandatory level heights encoded as "000"
120	Id wind level flag is miscoded
121-254	Reserved
255	Missing value

0-33-207 - QMPR

SDMEDIT/QUIPS quality mark for pressure

Code figure	Meaning
0	Hold (keep) flag placed on datum by either the NCEP Senior Duty Meteorologist (SDM) for non-marine reports, or by manual and/or automated quality control checks for marine reports (should have the highest influence in, and always be used by, the assimilating analyses)
1	Datum determined to be of good quality based on manual and/or automated quality control checks (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
2	Datum was either not checked, or determined to be of neutral quality based on manual and/or automated quality control checks (should have average influence in the assimilating analyses, subject to possible further quality control checks)
3	Datum determined to be of suspect quality based on manual and/or automated quality control checks (should have less than average influence in the assimilating analyses, subject to possible further quality control checks)
4	Datum was corrected by manual and/or automated quality control checks and is now determined to be of good quality (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
5-11	Reserved
12	Datum is on a manually-updated reject list (should never be used by the assimilating analyses
13	Datum determined to be of bad quality based on automated quality control checks (should never by used by the assimilating analyses)
14	Purge (reject) flag placed on datum by either the NCEP SDM for non-marine reports, or by manual and/or automated quality control checks for marine reports (should never by used by the assimilating analyses)
15	Missing value

0-33-208 - QMWH

SDMEDIT/QUIPS quality mark for wave height

Code figure	Meaning
0	Hold (keep) flag placed on datum by either the NCEP Senior Duty Meteorologist (SDM) for non-marine reports, or by manual and/or automated quality control checks for marine reports (should have the highest influence in, and always be used by, the assimilating analyses)
1	Datum determined to be of good quality based on manual and/or automated quality control checks (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
2	Datum was either not checked, or determined to be of neutral quality based on manual and/or automated quality control checks (should have average influence in the assimilating analyses, subject to possible further quality control checks)
3	Datum determined to be of suspect quality based on manual and/or automated quality control checks (should have less than average influence in the assimilating analyses, subject to possible further quality control checks)
4	Datum was corrected by manual and/or automated quality control checks and is now determined to be of good quality (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
5-11	Reserved
12	Datum is on a manually-updated reject list (should never be used by the assimilating analyses
13	Datum determined to be of bad quality based on automated quality control checks (should never by used by the assimilating analyses)
14	Purge (reject) flag placed on datum by either the NCEP SDM for non-marine reports, or by manual and/or automated quality control checks for marine reports (should never by used by the assimilating analyses)
15	Missing value

0-33-215 - CORN

Corrected report indicator

Code figure	Meaning
0	Not corrected
1	Corrected by report originator
2	Corrected by NCEP SDM
3-6	Reserved
7	Missing value

0-33-216 - SWQM

SDMEDIT quality mark for NESDIS produced satellite winds

Code figure	Meaning
0	Hold (keep) flag placed on datum by either the NCEP Senior Duty Meteorologist (SDM) for non-marine reports, or by manual and/or automated quality control checks for marine reports (should have the highest influence in, and always be used by, the assimilating analyses)
1	Datum determined to be of good quality based on manual and/or automated quality control checks (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
2	Datum was either not checked, or determined to be of neutral quality based on manual and/or automated quality control checks (should have average influence in the assimilating analyses, subject to possible further quality control checks)
3	Datum determined to be of suspect quality based on manual and/or automated quality control checks (should have less than average influence in the assimilating analyses, subject to possible further quality control checks)
4	Datum was corrected by manual and/or automated quality control checks and is now determined to be of good quality (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
5-11	Reserved
12	Datum is on a manually-updated reject list (should never be used by the assimilating analyses
13	Datum determined to be of bad quality based on automated quality control checks (should never by used by the assimilating analyses)
14	Purge (reject) flag placed on datum by either the NCEP SDM for non-marine reports, or by manual and/or automated quality control checks for marine reports (should never by used by the assimilating analyses)
15	Missing value

0-33-217 - RFLG

SSM/I rain flag (derived wind product quality indicator)

Code figure	Meaning
0	Wind speed error < 2 meters per second (all algorithms)
1	Wind speed error 2-5 meters/second (FNOC Goodberlet algorithm); wind speed error > 2 meters per second (NCEP Neural Net algorithm)
2	Wind speed error 5-10 meters/second (FNOC Goodberlet algorithm)
3	Wind speed error > 10 meters/second (FNOC Goodberlet algorithm)
4-6	Reserved
7	Missing value

0-33-218 - QMST

SDMEDIT quality mark for sea-surface temperature

Code figure	Meaning
0	Hold (keep) flag placed on datum by either the NCEP Senior Duty Meteorologist (SDM) for non-marine reports, or by manual and/or automated quality control checks for marine reports (should have the highest influence in, and always be used by, the assimilating analyses)
1	Datum determined to be of good quality based on manual and/or automated quality control checks (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
2	Datum was either not checked, or determined to be of neutral quality based on manual and/or automated quality control checks (should have average influence in the assimilating analyses, subject to possible further quality control checks)
3	Datum determined to be of suspect quality based on manual and/or automated quality control checks (should have less than average influence in the assimilating analyses, subject to possible further quality control checks)
4	Datum was corrected by manual and/or automated quality control checks and is now determined to be of good quality (should have greater than average influence in the assimilating analyses, subject to possible further quality control checks)
5-11	Reserved
12	Datum is on a manually-updated reject list (should never be used by the assimilating analyses
13	Datum determined to be of bad quality based on automated quality control checks (should never by used by the assimilating analyses)
14	Purge (reject) flag placed on datum by either the NCEP SDM for non-marine reports, or by manual and/or automated quality control checks for marine reports (should never by used by the assimilating analyses)
15	Missing value

0-33-221 - QCA

MADIS "QC applied" flag for surface data

Bit number	Meaning
1	Kalman filter was applied
2	Statistical model consistency check was applied
3	Forecast model consistency check was applied
4	Spatial consistency check was applied
5	Statistical spatial consistency check was applied
6	Temporal consistency check was applied
7	Internal consistency check was applied
8	Position consistency check was applied
9	Validity check was applied
10	Master check was applied
All 11	Missing value

0-33-222 - QCR

MADIS "QC results" flag for surface data

Bit number	Meaning
1	Kalman filter failed
2	Statistical model consistency check failed
3	Forecast model consistency check failed
4	Spatial consistency check failed
5	Statistical spatial consistency check failed
6	Temporal consistency check failed
7	Internal consistency check failed
8	Position consistency check failed
9	Validity check failed
10	Master check failed
All 11	Missing value

0-33-223 - QCAU

MADIS "QC applied" flag for upper air data

Bit number	Meaning
1	Provider QC check was applied
2	Model consistency check was applied
3	Time-height consistency check was applied
4	Wind shear check was applied
5	Super adiabatic lapse rate check was applied
6	Reserved
7	Hydrostatic check was applied
8	Temporal consistency check was applied
9	Internal consistency check was applied
10	Position consistency check was applied
11	Validity check was applied
12	Master check was applied
All 13	Missing value

0-33-224 - QCRU

MADIS "QC results" flag for upper air data

Bit number	Meaning
1	Provider QC check failed
2	Model consistency check failed
3	Time-height consistency check failed
4	Wind shear check failed
5	Super adiabatic lapse rate check failed
6	Reserved
7	Hydrostatic check failed
8	Temporal consistency check failed
9	Internal consistency check failed
10	Position consistency check failed
11	Validity check failed
12	Master check failed
All 13	Missing value

0-33-225 - DINT

FSL decoding correction indicator

Code figure	Meaning
0	Temperature correction
1	Longitude and wind direction flipped and observation time set to report receipt time
2	Latitude/longitude correction (other than interpolation)
3	No correction applied
4	Observation time set to report receipt time
5-14	Reserved
15	Missing value

0-33-226 - LINT

FSL location interpolation indicator

Code figure	Meaning
0	Interpolated
1	Reported
2	Reserved
3	Missing value

0-33-227 - TINT

FSL time interpolation indicator

Code figure	Meaning
0	Interpolated
1	Reported
2	Reserved
3	Missing value

0-33-229 - QFV2

Quality flag for VAD winds generated from Level II decoder

Code figure	Meaning
0	Normal VAD wind
1	VAD wind generated by interpolation
2	Reserved
3	Missing value

0-33-230 - SHRV

SHEF data revision flag

Code figure	Meaning
0	Not revised
1	Revised
2	Reserved
3	Missing value

0-33-231 - SHQL

SHEF data qualifier flag

Code figure	Meaning
0-1	Reserved
2	Bad - manual QC
3-4	Reserved
5	Estimated
6	Questionable - flagged by sensor or telemetry
7	Good - manual QC
8-12	Reserved
13	Good - manual edit
14-15	Reserved
16	Good - passed by level 1, level 2 and level 3
17	Questionable - flagged by level 2 and level 3
18	Bad - rejected by level 1
19	Good - screened by level 1
20-21	Reserved
22	Good - verified by level 1 and level 2
23-25	Reserved
26	No QC performed
27-30	Reserved
31	Missing value

0-33-232 - PRXF

Advanced Microwave Scanning Radiometer (AMSR)-E proximity flag

Code figure	Meaning
0	Reserved
1	Bad - data rejected
2	Suspected bad - data that has any confidence flags 0-5 rejected
3	Unprocessed proximity confidence flag - should be good data
4	Good data
5-14	Reserved
15	Missing value

0-33-233 - OSQC

Advanced Microwave Scanning Radiometer (AMSR)-E Level 2 ocean summary quality code

Code figure	Meaning
0	Scan is good
1	Bad calibration data
2	Bad scan (based on level-2A scan summary flag)
3	Bad time information
4-6	Reserved
7	Missing value

0-33-234 - OPQF

Advanced Microwave Scanning Radiometer (AMSR)-E Level 2 ocean product quality flag

Bit number	Meaning
1	Cell contains .2% to 1.4% land
2	Cell contains > 1.4% land
3	Sea ice is possible based on monthly climatology
4	Level-2A brightness temperatures indicate sea ice
5	Level-2A 6.9 GHz brightness temperatures are out of bounds or contain missing data
6	Level-2A 10.7 GHz brightness temperatures are out of bounds or contain missing data
7	Level-2A 18.7 GHz brightness temperatures are out of bounds or contain missing data
8	Level-2A 36.5 GHz brightness temperatures are out of bounds or contain missing data
9	Very low retrieval is out of bounds - do not use
10	Very low retrieval is not complete
11	Low retrieval is out of bounds - do not use
12	Low retrieval is not complete
13	Medium retrieval is out of bounds - do not use
14	Medium retrieval is not complete
15	High retrieval has unusual 19 GHz versus 37 GHz absorption rate - OK to use
16	High retrieval is not complete
17	Rain is in the cell, and the rain threshold is light
18	Rain is within 25 km of the cell, and the rain threshold is light
19	Rain is within 25 km of the cell, and the rain threshold is very light
20	Rain is within 40 km of the cell, and the rain threshold is light
21	Rain is within 40 km of the cell, and the rain threshold is very light
22-23	Reserved
All 24	Missing value

0-33-235 - TOQC

Ozone Monitoring Instrument (OMI) total ozone quality code

Code figure	Meaning
0	Good sample
1	Glint contamination (corrected)
2	Solar zenith angle > 84 degrees
3	360 residual > threshold
4	Residual at unused ozone wavelength > 4 sigma
5	SOI > 4 sigma (SO₂ present)
6	Non-convergence
7	Absolute value of residual > 16.0 (fatal)
8-30	Reserved
31	Missing value

0-33-236 - TOQF

Ozone Monitoring Instrument (OMI) total ozone quality flag

Bit number	Meaning
1	Warning input irradiance
2	Error input irradiance
3	Reserved
4	Warning input radiance
5	Warning input radiance
6	Warning input radiance
7	Solar zenith angle > 88 degrees
8	Geolocation error (anomalous FOV Earth location)
9	Climatological cloud pressure used
10	Row anomaly
11-12	Reserved
All 13	Missing value

0-33-237 - QCSS

MADIS "QC applied" flag for surface sensor status

Code figure	Meaning
0	Sensor operating/data available
1	Reserved
2	Sensor not installed
3	Sensor out of service
4	Reserved
5	Sensors output in conflict
6	Invalidated: Auto range check
7	Invalidated: Auto rate of change
8	Invalidated: Auto insufficient count
9	Invalidated: By operator
10	Data source offsite: Link failure
11	Reserved
12	Dew point sensor invalidated
13-15	Reserved
16	Operator manual data entry
17-30	Reserved
31	Missing value

0-33-241 - QHDOP

Quality for observed position

Code figure	Meaning
0	All parameters of nominal accuracy
1	Latitude or longitude questionable
2	Geopotential altitude or static pressure questionable
3	Both latitude or longitude, and geopotential altitude or static pressure questionable
4-6	Reserved
7	Missing value

0-33-242 - QHDOM

Quality for observed meteorological parameters

Code figure	Meaning
0	All parameters of nominal accuracy
1	Temperature or dewpoint temperature questionable
2	Flight-level winds questionable
3	SFMR parameter(s) questionable
4	Temperature or dewpoint temperature, and flight-level winds questionable
5	Temperature or dewpoint temperature, and SFMR parameter(s) questionable
6	Flight-level winds and SFMR parameter(s) questionable
7-8	Reserved
9	Temperature or dewpoint temperature, flight-level winds, and SFMR parameter(s) questionable
10-14	Reserved
15	Missing value

0-33-254 - TPQC2

2-bit indicator of quality

Code figure	Meaning
0	Good
1	Slightly suspect
2	Highly suspect
3	Missing value

0-33-255 - TPQC

1-bit indicator of quality

Code figure	Meaning
0	Good
1	Missing value

0-35-001 - TFFM

Time frame for monitoring

Code figure	Meaning
0	Real time
1	Near-real time
2	Non-real time
3-6	Reserved
7	Missing value

0-35-030 - DAED

Discrepancies in the availability of expected data

Code figure	Meaning
0	No discrepancies
1	Non-compliance with standard and recommended practices and procedures including those of monitoring
2	Catalogues of meteorological bulletins not updated in a timely manner
3	Incorrect routeing directories
4	Lack of flexibility in the routeing arrangements
5	Deficiencies in the operation of GTS centres and circuits
6	Loss of data or delays in relaying data on the GTS
7	Routeing of data different from the routeing provided in the plan
8	Various malpractices
9-14	Reserved
15	Missing value

0-35-031 - QOMR

Qualifier on monitoring results

Code figure	Meaning
0	Reserved
1	Sufficient and all of acceptable quality
2	Sufficient but partly of acceptable quality
3	Insufficient but all of acceptable quality
4	Insufficient and of unacceptable quality
5	Some messages not complete
6	Suspect or wrongly coded groups could not be interpreted confidently
7	Gross coding errors
8	Transmission sequential order not observed
9	Report completely garbled and thus discarded
10	Deficiencies identified and rectified
11	Deficiencies identified but not rectified
12	Deficiencies not identified
13	Measuring errors
14	Mutual inconsistency
15	Temporal inconsistency
16	Forecast error
17	Bias
18	Improve system of quality control
19	Expand training programmes
20-126	Reserved
127	Missing value

0-35-032 - COMD

Cause of missing data

Code figure	Meaning
0	Reserved
1	Data groups missing due to radio fading
2	Data groups missing due to outage of centre
3	Data groups missing due to outage of circuit
4	Non-implementation or maintenance of required RBSN density
5	Shortage of qualified staff to man stations
6	Lack of consumables
7	Instrument failure
8	Non-adherence to telecommunication procedures
9	Some observing programmes ceased
10-14	Reserved
15	Missing value

0-35-033 - OACD

Observation and collection deficiencies

Code figure	Meaning
0	Reserved
1	No deficiency
2	Observations not made regularly
3	Observations not made at right time
4	Observations made but not disseminated
5	Observations made and sent to incorrect users
6	Collection not received
7	Collection transmitted late
8	Collection not transmitted
9	Difficulties in HF propagation and selection of suitable frequency
10	Difficulties in maintenance of communication equipment at remote stations
11	No alternative arrangement for routeing meteorological observation
12-126	Reserved
127	Missing value

0-35-034 - STAD

Statistical trends for availability of data (during the survey period(s))

Code figure	Meaning
0	Reserved
1	Slight improvement
2	Significant improvement
3	Most significant improvement
4	Steady
5	Decreasing
6	Efforts required to improve night-time observations
7	Missing value

0-35-035 - RTERM

Reason for termination

Code figure	Meaning
0	Reserved
1	Balloon burst
2	Balloon forced down by icing
3	Leaking or floating balloon
4	Weak or fading signal
5	Battery failure
6	Ground equipment failure
7	Signal interference
8	Radiosonde failure
9	Excessive missing data frames
10	Reserved
11	Excessive missing temperature
12	Excessive missing pressure
13	User terminated
14	Sudden loss of signal
15	Tracking lost
16	Increasing pressure
17	Invalid and/or missed data time limits exceeded
18-29	Reserved
30	Other
31	Missing value

0-35-200 - RSRD

Restrictions on redistribution

Bit number	Meaning
1	No redistribution allowed
2	Can redistribute to any U.S. government agency
3	Can redistribute to any U.S. research group
4	Can redistribute to any U.S. educational institution
5	Can redistribute to any U.S. government agency within NOAA
6-8	Reserved
All 9	Missing value

0-40-005 - SMCF

Soil moisture correction flag

Bit number	Meaning
1	Soil moisture between -20% and 0%
2	Soil moisture between 100% and 120%
3	Correction of wet backscatter reference
4	Correction of dry backscatter reference
5	Correction of volume scattering in sand
6-7	Reserved
All 8	Missing value

0-40-006 - SMPF

Soil moisture processing flag

Bit number	Meaning
1	Not soil
2	Sensitivity to soil moisture below limit
3	Azimuthal noise above limit
4	Backscatter Fore-Aft beam out of range
5	Slope Mid-Fore beam out of range
6	Slope Mid-Aft beam out of range
7	Soil moisture below -20%
8	Soil moisture above 120%
9-15	Reserved
All 16	Missing value

0-40-011 - INTF

Interpolation flag

Bit number	Meaning
1	Mean sea surface (MSS) interpolation flag
2	Ocean tide solution 1 interpolation flag (0=4 points over ocean, 1=less than 4 points)
3	Ocean tide solution 2 interpolation flag (0=4 points over ocean, 1=less than 4 points)
4	Meteorological data interpolation flag (0=4 points over ocean, 1=less than 4 points)
5-7	Reserved
All 8	Missing value

0-40-012 - RDQF

Radiometer data quality flag

Bit number	Meaning
1	18.7 GHz brightness temperature is bad
2	23.8 GHz brightness temperature is bad
3	34 GHz brightness temperature is bad
4-7	Reserved
All 8	Missing value

0-40-013 - RBIF

Radiometer brightness temperature interpretation flag

Code figure	Meaning
0	Interpolation with no gap between JASON-1 Microwave Radiometer data
1	Interpolation with gaps between JASON-1 Microwave Radiometer data
2	Extrapolation of JASON-1 Microwave Radiometer data
3	Failure of extrapolation and interpolation
4-6	Reserved
7	Missing value

0-40-020 - QFFS

GqisFlagQualDetailed - quality flag for the system

Bit number	Meaning
1	NZPD and complex calibration error
2	Band 3 affected by spike
3	Band 3 affected by saturation
4	Band 2 affected by spike
5	Band 1 affected by spike
6	Overflow/underflow
7	On-board processing error
8	Spectral calibration error
9	Radiometric calibration error
10	Missing AVHRR data
11	Missing IIS data
12	Missing sounder data
13	GqisFlagQual summary flag for all bands
14	On-ground processing error
15	Inter-calibration error IASI/AVHRR
16	Reserved
All 17	Missing value

0-40-023 - AASF

Auxiliary altimeter state flags

Bit number	Meaning
1	Band sequence (0 = 3Ku_1C_3Ku, 1 = 2Ku_1C_2Ku)
2	C band frequency (0 = 320 MHz, 1 = 100 MHz)
3	C band status (0 = On, 1 = Off)
4	Ku band status (0 = On, 1 = Off)
All 5	Missing value

0-40-024 - MMAC

Meteorological map availability

Code figure	Meaning
0	2 maps available (6 hours apart)
1	2 maps available (greater than 6 hours apart)
2	1 map available, data extrapolated
3	No maps used
4-6	Reserved
7	Missing value

0-40-025 - IFDT

Interpolation flag for mean diurnal tide

Code figure	Meaning
0	Good
1	Bad
2	Reserved
3	Missing value

0-40-028 - GMIQ

GMI quality flag

Code figure	Meaning
0	Good data
1	Possible sun glint
2	Possible radio frequency interference
3	Degraded geolocation data
4	Data corrected for warm load intrusion
5	Scan blanking on
6	Data is missing from file or unreadable
7	Unphysical brightness temperature
8	Error in geolocation data
9	Data missing in one channel
10	Data missing in multiple channels
11	Lat/long values are out of range
12	Non-normal status modes
13	Distance to corresponding low frequency pixel > 7 km
14	Reserved
15	Missing value

0-40-036 - LL2BCT

Lidar L2b classification type

Code figure	Meaning
0	Clear
1	Cloud
2-14	Reserved
15	Missing value

0-40-043 - SMNI

Satellite manoeuvre indicator

Code figure	Meaning
0	The platform is not undergoing a manoeuvre
1	The platform is undergoing a manoeuvre, nominal processing
2	The platform is undergoing a manoeuvre, no processing
3-6	Reserved
7	Missing value

0-40-045 - CFHA

Cloud formation and height assignment

Bit number	Meaning
1	Cloud products retrieved with the chi-squared method
2	Cloud products retrieved with the CO₂ slicing
3	Height assignment performed with statistical first guess retrieval
4	Height assignment performed with NWP forecasts
All 5	Missing value

0-40-046 - CLDSM

Cloudiness summary

Code figure	Meaning
0	The IASI IFOV is clear
1	Small cloud contamination possible
2	The IASI IFOV is partially covered by clouds
3	High or full cloud coverage
4-6	Reserved
7	Missing value

0-40-047 - VIL1P

Validation flag for IASI or IASI-NG level 1 product

Code figure	Meaning
0	The measurements and side information are available and of good quality for L2 processing
1	The L1c products are of degraded quality according to L1c flags, no L2 processing
2	Quality control indicates that the L1c data are of degraded quality (not indicated by the IASI L1c flags), no L2 processing
3-6	Reserved
7	Missing value

0-40-048 - VAL1F

Validation flag of AMSU-A level 1 data flow

Code figure	Meaning
0	The expected AMSU measurements are available, of good quality and collocated with IASI for processing
1	AMSU-A data are available but of degraded quality (according to AMSU L1 flags or QC tests) and not used for processing
2	No coincident (time and space) AMSU measurements available for processing
3-6	Reserved
7	Missing value

0-40-049 - CTXR

Cloud tests executed and results

Bit number	Meaning
1-3	Reserved
4	IASI cloud optical thickness indicates a cloud
5	IASI cloud optical thickness computed
6	AVHRR heterogeneity test indicates a cloud
7	AVHRR heterogeneity test executed
8	IASI-AVHRR ANN cloud test indicates a cloud
9	IASI-AVHRR ANN cloud test executed
10	AVHRR integrated cloud fraction indicates a cloud
11	AVHRR integrated cloud fraction assessed
12	AMSU cloud test indicates a cloud
13	AMSU cloud test executed
14	IASI window cloud test indicates a cloud
15	IASI window cloud test executed
All 16	Missing value

0-40-050 - RTRIN

Retrieval initialisation

Bit number	Meaning
1-4	Reserved
5	MHS included
6	AMSU included
7	IASI included
All 8	Missing value

0-40-051 - CVIR

Convergence of the iterative retrieval

Code figure	Meaning
0	OEM not attempted
1	OEM aborted because first guess residuals too high
2	The minimisation did not converge, sounding rejected
3	The minimisation did not converge, sounding accepted
4	The minimisation converged, sounding rejected
5	The minimisation converged, sounding accepted
6	Reserved
7	Missing value

0-40-052 - ISFRTR

Indication of super-adiabatic and super-saturation in final retrieval

Bit number	Meaning
1-3	Reserved
4	Supersaturation conditions in the OEM retrieval
5	Superadiabatic conditions in the OEM retrieval
6	Supersaturation conditions in the first guess
7	Superadiabatic conditions in the first guess
All 8	Missing value

0-40-054 - PPIE

Potential processing and inputs errors

Bit number	Meaning
1	An error has been detected
2	Message from L1
3	Message from L2
4	Message from ancillary data
5	Message from fitting procedure
6	File opening
7	File reading
8	Quality flag
9	Level 2 "from linear regression" (F_Qual) report a pixel where L2 are not fully trusted
10	Empty field or data
11	Missing surface pressure value
12	Radiance filtering
All 13	Missing value

0-40-055 - DRTR

Diagnostics on the retrieval

Bit number	Meaning
1	Radiance filtering
2	Polar regions
3	Location in the night
4	Negative altitude surface below MSL
5	Cloud-covered scene
6	Scene above the sea
7	Scene above desert
8	Skin temperature
9	Skin temperature differential
10	Spectral line contrast too weak
11	Maximum number of iterations exceeded
12	Negative partial columns
13	Matrix ill-conditioned
14	Fit diverged
15	Error in GSL usage
16	Residuals biased
17	Residuals sloped
18	Residuals RMS large
19	Weird averaging kernels
20	Ice presence detected
All 21	Missing value

0-40-056 - GRTRQ

General retrieval quality

Code figure	Meaning
0	Use not recommended
1	Use with caution
2	Best quality
3-6	Reserved
7	Missing value

0-40-057 - IL2RTR

IASI level 2 retrieval flags

Bit number	Meaning
1	An error has been detected
2	Message from L1
3	Message from L2
4	Message from ancillary data
5	Message from fitting procedure
6	Reserved
7	Bad L1 or L2 flag raised
8	Level 2 not fully trusted
9	Missing temperature or humidity levels in the vertical profile
10	Missing surface pressure value
11	Radiance filtering
12	Polar regions
13	Location in the night
14	Negative altitude
15	Cloud-covered scene
16	Scene above the sea
17	Scene above desert
18	Missing skin temperature
19	Retrieved skin temperature too different from model
20	Spectral line contrast too weak
21	Maximum number of iterations exceeded
22	Negative partial columns
23	Matrix ill-conditioned
24	Fit diverged
25	Error in GSL usage
26	Residuals biased
27	Residuals sloped
28	Residuals RMS large
29	Weird averaging kernels
30	Ice presence detected
All 31	Missing value

0-40-068 - GRTRQSO2

General retrieval quality flag for SO2

Code figure	Meaning
0	Values calculated with IASI L2
1	Pressure and temperature profiles missing in IASI L2 data; model/forecast data used instead
2	Best quality
3-14	Reserved
15	Missing value

0-40-074 - GIQF

General interferometry quality flags

Bit number	Meaning
1	Incompatibility of a scan angle for electroencephalogram
2	Calibration failure (limit of black body temperature reached, not enough sources for interferometry, etc.)
3	Geolocation executed taking into account the orientation of the spacecraft and using the star catalogue
4	High level of cryogenic sediment reached, requiring outgassing of the radiation cooler. Set when NESR level of the ice cover threshold crossed
5	Interferometry package flag
6	General accuracy flag
7	Noise present during the interferometry
8	Outgassing of the radiation cooler
9	Flag preceding the first 24 hours/day mark (set to on as a rule)
10	Telemetry package flag
11-15	Reserved
All 16	Missing value

0-40-080 - CTIL2

Cloud test results for IASI-NG level 2

Bit number	Meaning
1	Thin cirrus detection executed
2	Thin cirrus detection indicates a cloud
3	Aerosol dust detection executed
4	Aerosol dust detected
All 5	Missing value

0-42-004 - CIPSWV

Confidence of inversion for each partition of swell wave spectra

Code figure	Meaning
0	Wave direction resolved
1	180-degree ambiguity not resolved
2-14	Reserved
15	Missing value

0-50-210 - SLQFS

Scan line quality flags for SAPHIR/MADRAS

Bit number	Meaning
1	Scan quality flag validity
2	Pass type
3	Scanning type
4	Scan error
5	Datation error
6	PRT error
7	Encoder error
8	MADRAS correction flag
9	CRC status
All 10	Missing value

0-50-211 - PLMD

Payload mode for SAPHIR

Code figure	Meaning
0	Nominal mode
1	Fixed mode (investigation only)
2	Hot calibration (investigation only)
3	Cold calibration (investigation only)
4	Nadir looking (investigation only)
5-6	Reserved
7	Missing value

0-50-213 - SMODE

Satellite mode for SAPHIR/MADRAS

Code figure	Meaning
0	Valid data; no flip condition equivalent to forward configuration
1	Invalid data; flip transition
2	Valid data; flipped condition equivalent to backward configuration
3	Invalid data; attitude maneuvers for orbit maintenance
4	Invalid data; attitude maneuvers for payload calibration purpose
5	Invalid data; attitude bias payload operation
6	Invalid data; gyro calibration
7	Valid data; MADRAS in fixed
8-14	Reserved
15	Missing value

0-50-214 - CHQF

Channel quality flags for SAPHIR/MADRAS

Bit number	Meaning
1	Brightness temperature validity
2	Land/sea contamination
3	On/off channel flag
4	Level 0 count error
5	Level 0 hot or cold count error
6	Geolocation estimation
7	Hot count error
8	Cold sky count error
9	Interpolation error
10	AGC/AOC loops
All 11	Missing value

0-50-215 - CLFG

Calibration flags for SAPHIR/MADRAS

Code figure	Meaning
0	Calibration OK
1	Calibration failure
2	Degraded gain averaging
3	Partial calibration
4-6	Reserved
7	Missing value

0-51-001 - RRTQM

PREPBUFR: Rainfall (average rate) (quality) marker

When the value of
0-51-002 - RRTPC (PREPBUFR: Rainfall (average rate) event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-14	Reserved
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

When the value of
0-51-002 - RRTPC (PREPBUFR: Rainfall (average rate) event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))
or
= 4 (Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure)
or
= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))
or
= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))
or
= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))
or
= 8 (Virtual temperature/specific humidity processing step "VIRTMP")
or
= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))
or
= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))
or
= 11 (Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs))
or
= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))
or
= 13 (Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program))
or
= 14 (ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-30	Reserved
31	Missing value

0-51-002 - RRTPC

PREPBUFR: Rainfall (average rate) event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-51-003 - RRTRC

PREPBUFR: Rainfall (average rate) event reason code

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-51-002 - RRTPC (PREPBUFR: Rainfall (average rate) event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-51-002 - RRTPC (PREPBUFR: Rainfall (average rate) event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-51-002 - RRTPC (PREPBUFR: Rainfall (average rate) event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-51-002 - RRTPC (PREPBUFR: Rainfall (average rate) event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-51-002 - RRTPC (PREPBUFR: Rainfall (average rate) event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-51-002 - RRTPC (PREPBUFR: Rainfall (average rate) event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-51-021 - PWQ

PREPBUFR: Total precipitable water (quality) marker

When the value of
0-51-022 - PWP (PREPBUFR: Total precipitable water event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-12	Reserved
13	Non-profiler observation failed one or more checks
14	Reserved
15	Observation is flagged for non-use by analysis
16-30	Reserved
31	Missing value

When the value of
0-51-022 - PWP (PREPBUFR: Total precipitable water event program code)

= 4 (Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure)

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-7	Reserved
8	A non-pressure observation failed a limit check
9	Observation error is missing
10-12	Reserved
13	Non-profiler observation failed one or more checks
14-30	Reserved
31	Missing value

When the value of
0-51-022 - PWP (PREPBUFR: Total precipitable water event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4	Observation with pre-existing quality marker 0 (keep) is flagged
5	Observation with pre-existing quality marker 1 (good) is flagged
6	Observation with pre-existing quality marker 2 (neutral/default) is flagged
7	Observation with pre-existing quality marker 3 (suspect) is flagged
8-12	Reserved
13	Non-profiler observation failed one or more checks
14-30	Reserved
31	Missing value

When the value of
0-51-022 - PWP (PREPBUFR: Total precipitable water event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))
or
= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))
or
= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))
or
= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))
or
= 8 (Virtual temperature/specific humidity processing step "VIRTMP")
or
= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))
or
= 11 (Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs))
or
= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))
or
= 13 (Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program))
or
= 14 (ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program))

Code figure	Meaning
0	Keep (always assimilate)
1	Good
2	Neutral or not checked (default)
3	Suspect
4-12	Reserved
13	Non-profiler observation failed one or more checks
14-30	Reserved
31	Missing value

0-51-022 - PWP

PREPBUFR: Total precipitable water event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-51-023 - PWR

PREPBUFR: Total precipitable water event reason code

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-51-022 - PWP (PREPBUFR: Total precipitable water event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-51-022 - PWP (PREPBUFR: Total precipitable water event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-51-022 - PWP (PREPBUFR: Total precipitable water event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-51-022 - PWP (PREPBUFR: Total precipitable water event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-51-022 - PWP (PREPBUFR: Total precipitable water event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-51-022 - PWP (PREPBUFR: Total precipitable water event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-51-033 - PW1P

PREPBUFR: Precipitable water in layer bounded by 1.0 to 0.9 sigma event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-51-034 - PW1R

PREPBUFR: Precipitable water in layer bounded by 1.0 to 0.9 sigma event reason code

When the value of
0-51-033 - PW1P (PREPBUFR: Precipitable water in layer bounded by 1.0 to 0.9 sigma event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

When the value of
0-51-033 - PW1P (PREPBUFR: Precipitable water in layer bounded by 1.0 to 0.9 sigma event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-51-033 - PW1P (PREPBUFR: Precipitable water in layer bounded by 1.0 to 0.9 sigma event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-51-033 - PW1P (PREPBUFR: Precipitable water in layer bounded by 1.0 to 0.9 sigma event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-51-033 - PW1P (PREPBUFR: Precipitable water in layer bounded by 1.0 to 0.9 sigma event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-51-033 - PW1P (PREPBUFR: Precipitable water in layer bounded by 1.0 to 0.9 sigma event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-51-033 - PW1P (PREPBUFR: Precipitable water in layer bounded by 1.0 to 0.9 sigma event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-51-033 - PW1P (PREPBUFR: Precipitable water in layer bounded by 1.0 to 0.9 sigma event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-51-043 - PW2P

PREPBUFR: Precipitable water in layer bounded by 0.9 to 0.7 sigma event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-51-044 - PW2R

PREPBUFR: Precipitable water in layer bounded by 0.9 to 0.7 sigma event reason code

When the value of
0-51-043 - PW2P (PREPBUFR: Precipitable water in layer bounded by 0.9 to 0.7 sigma event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

When the value of
0-51-043 - PW2P (PREPBUFR: Precipitable water in layer bounded by 0.9 to 0.7 sigma event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-51-043 - PW2P (PREPBUFR: Precipitable water in layer bounded by 0.9 to 0.7 sigma event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-51-043 - PW2P (PREPBUFR: Precipitable water in layer bounded by 0.9 to 0.7 sigma event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-51-043 - PW2P (PREPBUFR: Precipitable water in layer bounded by 0.9 to 0.7 sigma event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-51-043 - PW2P (PREPBUFR: Precipitable water in layer bounded by 0.9 to 0.7 sigma event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-51-043 - PW2P (PREPBUFR: Precipitable water in layer bounded by 0.9 to 0.7 sigma event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-51-043 - PW2P (PREPBUFR: Precipitable water in layer bounded by 0.9 to 0.7 sigma event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-51-053 - PW3P

PREPBUFR: Precipitable water in layer bounded by 0.7 to 0.3 sigma event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-51-054 - PW3R

PREPBUFR: Precipitable water in layer bounded by 0.7 to 0.3 sigma event reason code

When the value of
0-51-053 - PW3P (PREPBUFR: Precipitable water in layer bounded by 0.7 to 0.3 sigma event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

When the value of
0-51-053 - PW3P (PREPBUFR: Precipitable water in layer bounded by 0.7 to 0.3 sigma event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-51-053 - PW3P (PREPBUFR: Precipitable water in layer bounded by 0.7 to 0.3 sigma event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-51-053 - PW3P (PREPBUFR: Precipitable water in layer bounded by 0.7 to 0.3 sigma event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-51-053 - PW3P (PREPBUFR: Precipitable water in layer bounded by 0.7 to 0.3 sigma event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-51-053 - PW3P (PREPBUFR: Precipitable water in layer bounded by 0.7 to 0.3 sigma event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-51-053 - PW3P (PREPBUFR: Precipitable water in layer bounded by 0.7 to 0.3 sigma event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-51-053 - PW3P (PREPBUFR: Precipitable water in layer bounded by 0.7 to 0.3 sigma event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-51-063 - PW4P

PREPBUFR: Precipitable water in layer bounded by 0.3 to 0.0 sigma event program code

Code figure	Meaning
0	Reserved
1	Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps)
2	Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps)
3	Reserved
4	Pre-quality control step "PREVENT" which adds GFS forecast background and observation error (if present) and performs check of surface pressure
5	Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps)
6	Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step)
7	AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program)
8	Virtual temperature/specific humidity processing step "VIRTMP"
9	Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program)
10	Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program)
11	Global (GFS/GDAS/CDAS) SSI analysis step "SSI" (performed in GLOBAL_SSI and CDAS_SSI programs)
12	VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program)
13	Regional (ETA/EDAS) 3DVAR analysis step "R3DVAR" (performed in ETA_R3DVAR program)
14	ACARS aircraft quality control step "ACARSQC" (performed in PREPOBS_ACARSQC program)
15-30	Reserved
31	Missing value

0-51-064 - PW4R

PREPBUFR: Precipitable water in layer bounded by 0.3 to 0.0 sigma event reason code

When the value of
0-51-063 - PW4P (PREPBUFR: Precipitable water in layer bounded by 0.3 to 0.0 sigma event program code)

= 1 (Initial PREPBUFR processing step "PREPRO" (performed in PREPOBS_PREPDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0-99	Reserved
100	Observation and quality marker on report level unchanged from original values read into program PREPDATA
101	Observation on upper-air category 4 (winds-by-height) level created via linear averaging of reported data on spanning levels
102	Observation on upper-air report level created via linear log-P interpolation of reported data on spanning levels
103	Observation on upper-air report level created via hydrostatic integration of reported data on spanning levels
104	Observation on report level created from other types of reported observations on the same level
105	New report pressure level created; pressure observation considered to be of neutral quality
106	Surface marine report with missing elevation or reported elevation greater than 10,000 meters; height (elevation) observation is assigned the value of 0 m and is considered to be of neutral quality
107	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to reported surface pressure (if valid) and considered to be of neutral quality unless surface pressure quality is suspect or bad
108	Surface marine ATLAS BUOY report with missing surface pressure; surface pressure observation is assigned the U.S. Standard Atmosphere value of 1013 mb and is considered to be of suspect quality
109	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of neutral quality unless MSLP quality is suspect or bad
110	Surface report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of bad quality because MSLP is outside of D-value range
111	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to reported MSLP value (if valid) and considered to be of same quality as MSLP observation
112	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of suspect quality unless MSLP quality is bad
113	Surface report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and valid MSLP; surface pressure observation calculated from reported MSLP, temperature and elevation, and considered to be of bad quality because MSLP is outside of D-value range
114	Observation on report level created from other types of observations on the same level; the other observations were created earlier via linear log-P interpolation of reported data on spanning levels
115	Surface marine report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of same quality
116	Pressure calculated from reported altitude via U.S. Standard Atmosphere; calculated pressure observation considered to be of neutral quality
117	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude and temperature on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation considered to be of neutral quality
118	Surface land report with missing MSLP and reported elevation greater than 0 m but less than 7.5 m; MSLP observation set to surface pressure from SDM event and considered to be of neutral quality
119	Surface land report with missing surface pressure, missing altimeter setting and reported elevation greater than 0 m but less than 7.5 m; surface pressure observation set to MSLP from SDM event and considered to be of neutral quality
120	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and SDM-assigned MSLP; surface pressure observation calculated from SDM-assigned MSLP, temperature and elevation, and considered to be of suspect quality
121	Surface land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; surface pressure observation calculated from U.S. Standard Atmosphere MSLP and reported temperature and elevation, and considered to be of suspect quality
122-129	Reserved
130	Report with a pressure observation greater than 1075 mb; pressure observation is considered to be of bad quality
131	Upper-air report category 4 (winds-by-height) level with a calculated height created from a spanning level that did not report height; calculated height observation is considered to be of bad quality
132	Report with a surface pressure or MSLP observation that is outside of D-value range; observation considered to be of bad quality
133	Upper-air report with observations on a category 4 (winds-by-height) level that were created from bad-quality pressure data on a spanning level and are themselves considered to be of bad quality
134	Upper-air report height observation on a category 4 (winds-by-height) level is considered to be of bad quality
135	Upper-air report wind observation on a category 4 (winds-by-height) level and originally having a "keep" flag or good quality marker is downgraded to be of neutral quality
136-137	Reserved
138	Report that is over land, and data card switches are set to exclude all data of this type over land; observation is flagged for non-use by analysis
139	GOES satellite retrieval with satellite number/retrieval type combination that is set to be excluded by data card switches; observation is flagged for non-use by analysis
140	Upper-air report from an Indian radiosonde (WMO block 42 or 43) and data card switches are set to exclude all data; observation is flagged for non-use by analysis
141	Surface level data from a flight-level reconnaissance report or dropwinsonde report; observation is flagged for non-use by analysis
142	Surface level data from a GOES sounding; observation is considered to be of suspect quality
143	Upper-air report level with reported pressure greater than reported surface pressure; observation is considered to be of bad quality
144-145	Reserved
146	MSLP bogus report; pressure observation is considered to be of good quality
147	Upper-air report level with either (1) pressure below 400 mb and dewpoint missing or below 215 K, or (2) pressure above highest category 2 (significant temperature) or category 5 (troposphere) level with height or temperature data; temperature observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
148	Upper-air report level with calculated virtual temperature greater than 375 K below 100 mb or greater than 325 K above 100 mb; temperature observation is considered to be of bad quality
149	Upper-air report level where the difference between the pressure on the first level beneath and the pressure on the current level where a height is being calculated via hydrostatic integration exceeds the limit; calculated height is considered to be of bad quality
150	Surface report level with reported MSLP that is of bad quality; surface pressure observation that originally was not bad is now also considered to be of bad quality
151	Upper-air report level where the difference between the reported height and the calculated height (via hydrostatic integration) on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
152	Surface report level with reported surface pressure that is of bad quality; MSLP observation that originally was not bad is now also considered to be of bad quality
153	Reserved
154	Upper-air report level that is duplicate in pressure with another level; if wind observation was transferred from category 4 (winds-by-height) level onto duplicate level with missing or bad height, then wind observation originally having "keep" flag or good quality marker is downgraded to be of neutral quality
155	Surface report level with reported MSLP that is outside of D-value range; surface pressure observation that originally was not bad is now also considered to be of bad quality
156	Surface report level with reported surface pressure that is outside of D-value range; MSLP observation that originally was not bad is now also considered to be of bad quality
157	Surface land report that is outside the boundary of the LFM grid domain; observation is flagged for non-use by analysis
158	Reserved
159	ACARS report with pressure altitude less than 7500 feet; observation is flagged for non-use by analysis
160	Satellite land or Great Lakes marine report with missing surface pressure, missing altimeter setting, reported elevation greater than 7.5 m and missing MSLP; specific humidity observation is considered to be of suspect quality
161	Reserved
162	Flight-level reconnaissance report with flight-level pressure calculated from reported altitude on same level and from reported pressure and height on a second level via U.S. Standard Atmosphere lapse rate; calculated pressure observation is considered to be of suspect quality
163	Pressure calculated from reported altitude via U.S. Standard Atmosphere and SDM-assigned height; calculated pressure observation is considered to be of same quality
164	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 149 or 165; calculated height is considered to be of bad quality
165	Upper-air report level where the difference between the pressure on the first level beneath with either a reported or calculated height and the pressure on the first level above with a reported height exceeds the limit; level is considered to be of bad quality
166	Upper-air report level onto which a height is being calculated via hydrostatic integration and where one or both spanning levels contains a height from an SDM event; calculated height is considered to be of bad quality
167	Upper-air report level onto which a height is being calucluated via hydrostatic integration, and one or both of the spanning level heights has an event reason code of 151; calculated height is considered to be of bad quality
168	Report of a type for which data card switches are set to exclude all data of that type; observation is flagged for non-use by analysis
169	Surface report where height (elevation) observation is consdered to have the same quality as that of the pressure observation
170	Upper-air, ACARS, aircraft or surface report where observed or calculated dew point temperature is less than 215 K; dew point and observed or calculated specific humidity observations are considered to be of bad quality
171-190	Reserved
191	NCEP SDM modified the value of the observation; observation is considered to be of good quality
192	NCEP Ocean Prediction Center modified the value of the observation; observation is considered to be of good quality
193	Observation was deemed suspect by automatic quality control checks and subsequently rejected by NCEP SDM; observation is considered to be of bad quality
194	Observation was deemed suspect by automatic quality control checks but was subsequently accepted by NCEP SDM; observation is considered to be of good quality
195	Observation is on manual reject list and flagged for non-use by analysis
196	NCEP SDM placed a "keep" flag on the observation; data will be used by the analysis
197	NCEP SDM placed a "purge" flag on the observation; data is flagged for non-use by analysis
198-1022	Reserved
1023	Missing value

When the value of
0-51-063 - PW4P (PREPBUFR: Precipitable water in layer bounded by 0.3 to 0.0 sigma event program code)

= 2 (Synthetic tropical cyclone bogus processing step "SYNDATA" (performed in SYNDAT_SYNDATA program, prior to "PREVENT" and "VIRTMP" steps))

Code figure	Meaning
0	Original bogus data created by SYNDATA program
1	Bogus specific humidity observation at storm center created by SYNDATA program, based on an assumed relative humidity of 99%
2	Reported surface pressure observation at storm center (from TCVITALS)
3	Bogus surface pressure observation at storm center created by SYNDATA program, and derived from adjusting first guess surface pressure according to Saffir-Simpson storm category
4-9	Reserved
10	Report in the vicinity of a tropical storm; pressure on all levels flagged so report will not be assimilated
11-98	Reserved
99	Dropwinsonde report in the vicinity of a tropical storm (within a radius of the larger of 111 km or three times the radius of the maximum surface wind; wind on all levels flagged so wind will not be assimilated
100-1022	Reserved
1023	Missing value

When the value of
0-51-063 - PW4P (PREPBUFR: Precipitable water in layer bounded by 0.3 to 0.0 sigma event program code)

= 5 (Rawinsonde height/temperature complex quality control step "CQCHT" (performed in PREPOBS_CQCBUFR program, prior to "RADCOR" and "VIRTMP" steps))

Code figure	Meaning
0	Temperature was OK and was not corrected
1	Height computation error at an interior mandatory level
2	Temperature computation error at an interior mandatory level
3	Height and temperature computation errors or with residual compensation at the same interior mandatory level
4	Reserved
5	Height or temperature computation error (or both) at the top mandatory level
6	Height computation error between any two mandatory levels
7	Height computation error between any two adjacent mandatory levels
8	Temperature computation error between any two adjacent mandatory levels
9	Height computation error at the lower of two adjacent mandatory levels, and temperature computation error at the upper of the two levels
10	Temperature computation error at the lower of two adjacent mandatory levels, and height computation error at the upper of the two levels
11-14	Reserved
15	Auxiliary level in regional-OI version recalculated by CQCHT
16-19	Reserved
20	Significant level temperature was corrected
21	A non-correctable significant level temperature error was found
22	Reserved
23	A non-correctable significant level temperature error was found
24	A non-correctable significant level temperature error was found
25	A non-correctable significant level temperature error was found
26-29	Reserved
30	Temperature observation error; data is flagged for rejection or use with reduced weight
31-34	Reserved
35	Temperature observation error; data is flagged for rejection or use with reduced weight
36	Height observation error; data is flagged for rejection or use with reduced weight
37	Height observation error; data is flagged for rejection or use with reduced weight
38-99	Reserved
100	Surface pressure was corrected
101	Reserved
102	Surface temperature was corrected
103-104	Reserved
105	A non-correctable surface pressure or temperature error was found
106	Surface pressure observation error
107-1022	Reserved
1023	Missing value

When the value of
0-51-063 - PW4P (PREPBUFR: Precipitable water in layer bounded by 0.3 to 0.0 sigma event program code)

= 6 (Rawinsonde height/temperature intersonde bias (radiation) correction step "RADCOR" (performed in PREPOBS_CQCBUFR program, after "CQCHT" step but prior to "VIRTMP" step))

Code figure	Meaning
0	Reserved
1	Height or temperature (or both) recalculated
2-1022	Reserved
1023	Missing value

When the value of
0-51-063 - PW4P (PREPBUFR: Precipitable water in layer bounded by 0.3 to 0.0 sigma event program code)

= 7 (AIREP, PIREP and AMDAR aircraft quality control step "PREPACQC" (performed in PREOPOBS_PREPACQC program))

Code figure	Meaning
0	Reserved
1	PIREP report converted to AIREP by Tinker AFB; temperature and wind data considered to be of bad quality
2	Report between altitude 2000 ft and 5000 ft with temperature that differs from first guess temperature by more than 25 degrees Celsius; temperature and wind data considered to be of bad quality
3	Report with non-missing temperature greater than 12 degrees Celsius; temperature data considered to be of bad quality
4	Report with calm wind from a direction other than 360 degrees; wind data considered to be of bad quality
5	PIREP report with vector wind increment greater than 20 knots, or with unknown vector wind increment; temperature and wind data considered to be of bad quality
6	Report with a calm wind in a stack of less than seven co-located reports with less than four reports having a calm wind; wind data considered to be of bad quality
7	Mid- or high-level ASDAR/AMDAR/TAMDAR report in a track with an unreasonable ground speed and vector wind increment greater than 70 knots; wind data considered to be of bad quality
8	This one of a pair of AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
9	This one of a pair of AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
10	This one of several AIREP/PIREP reports in a track is determined to have a type 3 error; wind data considered to be of bad quality
11	This one of several AIREP/PIREP reports in a track is determined to be a type 2B duplicate; wind data considered to be of bad quality
12	This one of several AIREP/PIREP reports in a track is determined to be a type 2A duplicate; wind data considered to be of bad quality
13	This last of several AIREP/PIREP reports in a track is determined to be in error; wind data considered to be of bad quality
14	This one of several AIREP/PIREP reports in a track is determined to be a type 3 duplicate; wind data considered to be of bad quality
15	Report was used to generate a superob report; temperature and wind data are flagged for non-use by analysis
16	Isolated AIREP/PIREP report with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
17	Isolated AIREP/PIREP report with vector wind increment less than 21 knots; temperature and wind data considered to be of good quality
18	Isolated AIREP/PIREP report with vector wind increment greater than 20 knots but less than 51 knots; temperature and wind data considered to be of suspect quality
19	Report (isolated or stacked) with wind data data that has failed one or more checks and is considered to be of bad quality; temperature data is now also considered to be of bad quality
20	Report in a stack of co-located reports with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
21	Report in a stack of co-located reports with wind data that has failed the wind shear check; wind data considered to be of bad quality
22	Report in a stack of co-located reports with temperature data that has failed the lapse check; temperature data considered to be of bad quality
23	Report in a stack of co-located reports with wind data that has failed one or more checks, and report was not used to generate a superob; temperature and wind data considered to be of bad quality
24	This one of a pair of co-located reports has a vector wind increment greater than 50 knots and contains a suspected track check error; temperature and wind data considered to be of bad quality
25	AIREP/PIREP or superob report over CONUS; temperature and wind data are flagged for non-use by analysis
26	Superob report; temperature and wind data considered to be of good quality
27	In a track containing at least 15 ASDAR/AMDAR/TAMDAR reports, there are at least 10 reports with a vector wind increment greater than 50 knots; wind data considered to be of bad quality
28	Isolated ASDAR/AMDAR/TAMDAR report with temperature and wind data that have passed all checks; temperature and wind data considered to be of good quality
29	AIREP/PIREP report in a stack of only two co-located reports and with vector wind increment greater than 50 knots; temperature and wind data considered to be of bad quality
30	Isolated ASDAR/AMDAR/TAMDAR report with a missing phase-of-flight indicator; temperature and wind data considered to be of suspect quality
31-1022	Reserved
1023	Missing value

When the value of
0-51-063 - PW4P (PREPBUFR: Precipitable water in layer bounded by 0.3 to 0.0 sigma event program code)

= 9 (Wind profiler quality control step "CQCPROF" (performed in PREPOBS_PROFCQC program))

Code figure	Meaning
0-2	Reserved
3	Wind observation was found to be of questionable quality
4-12	Reserved
13	Wind observation failed QC checks
14-1022	Reserved
1023	Missing value

When the value of
0-51-063 - PW4P (PREPBUFR: Precipitable water in layer bounded by 0.3 to 0.0 sigma event program code)

= 10 (Multi-platform OI-quality control step "OIQC" (performed in PREPOBS_OIQCBUFR program))

Code figure	Meaning
0-1	Reserved
2	SSM/I oceanic wind speed report; performs a multi-variate surface wind analysis and assigns the analyzed wind direction to the wind speed observation, then generates new u- and v-wind components for the wind vector
3	Reserved
4	Report originally with a "keep" flag is rejected because it is more than 20 times the expected difference from the interpolated nearby independent information
5	Report originally with a good quality mark is rejected by the OIQC checking algorithm
6	Report originally with a neutral quality mark is rejected by the OIQC checking algorithm
7	Report originally with a suspect quality mark is rejected by the OIQC checking algorithm
8-1022	Reserved
1023	Missing value

When the value of
0-51-063 - PW4P (PREPBUFR: Precipitable water in layer bounded by 0.3 to 0.0 sigma event program code)

= 12 (VAD wind quality control step "CQCVAD" (performed in PREPOBS_CQCVAD program))

Code figure	Meaning
0	Reserved
1	Wind observation on a single level has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
2	Wind observations on adjacent levels have speeds greater than or equal to 1 m/s and are unaffected by bird migration but still failed QC checks
3	Wind observation has speed greater than or equal to 1 m/s and is unaffected by bird migration but still failed QC checks
4	Wind observation has speed less than 1 m/s
5	Wind observation has speed greater than or equal to 1 m/s but is affected by bird migration
6	Reserved
7	The magnitude of the wind increment (either u- or v- component) is greater than 12 m/s
8	Reserved
9	No first-guess wind information is available
10-1022	Reserved
1023	Missing value

0-55-006 - NMCT

NCEP report type

Code figure	Meaning
0-64	Reserved
65	SSM/I total precipitable water product (ocean)
66	SSM/I rain rate product
67	Reserved
68	SSM/I brightness temperatures
69	SSM/I cloud water product (ocean)
70-160	Reserved
161	NESDIS 40-level TOVS clear temperature retrievals over land
162	NESDIS 40-level TOVS N-star (partly cloudy) temperature retrievals over land
163	NESDIS 40-level TOVS microwave (cloudy) temperature retrievals over land
164-165	Reserved
166	NMC interactive TOVS clear temperature retrievals over land
167	NMC interactive TOVS N-star (partly cloudy) temperature retrievals over land
168	NMC interactive TOVS microwave (cloudy) temperature retrievals over land
169-170	Reserved
171	NESDIS 40-level TOVS clear temperature retrievals over ocean
172	NESDIS 40-level TOVS N-star (partly cloudy) temperature retrievals over ocean
173	NESDIS 40-level TOVS microwave (cloudy) temperature retrievals over ocean
174-175	Reserved
176	NMC interactive TOVS clear temperature retrievals over ocean
177	NMC interactive TOVS N-star (partly cloudy) temperature retrievals over ocean
178	NMC interactive TOVS microwave (cloudy) temperature retrievals over ocean
179-570	Reserved
571	SSM/I wind speed product (ocean)
572	Reserved
573	SSM/I soil moisture product
574	SSM/I snow depth product
575	SSM/I additional products (surface tag, ice concentration, ice age, ice edge, calculated surface type)
576	SSM/I surface (skin) temperature product
577	SSM/I sea surface temperature product
578-1022	Reserved
1023	Missing value

0-55-007 - TYP

PREPBUFR: Report type

When the value of
0-01-225 - NCNW (NCEP network)

= 2 (GFS/GDAS)

Code figure	Meaning
0-110	Reserved
111	MASS Report - Synthetic (bogus) tropical cyclone storm center
112	MASS Report - Pseudo mean sea-level pressure at tropical cyclone storm center
113-119	Reserved
120	MASS Report - Rawinsonde
121	Reserved
122	MASS Report - Class sounding
123-125	Reserved
126	MASS Report - RASS temperature profile
127-129	Reserved
130	MASS Report - AIREP or PIREP aircraft
131	MASS Report - AMDAR aircraft
132	MASS Report - Flight-level reconnaissance and profile dropsonde
133	MASS Report - MDCRS ACARS aircraft
134	MASS Report - TAMDAR aircraft
135	MASS Report - Canadian AMDAR aircraft
136-149	Reserved
150	MASS Report - SSM/I superobed (1 degree lat/long) FNMOC rain rate
151	MASS Report - NESDIS 1x1 cloud top pressure, temperature and cloud amount
152	MASS Report - SSM/I superobed (1 degree lat/long) Neural net-3 precipitable water over ocean
153	MASS Report - GPS integrated precipitable water
154-155	Reserved
156	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - clear
157	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - cloudy
158	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - clear
159	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - cloudy
160-163	Reserved
164	MASS Report - NESDIS 1x1 field-of-view radiances water over land - clear
165	MASS Report - NESDIS 1x1 field-of-view radiances water over land - cloudy
166-169	Reserved
170	MASS Report - Nacelle
171	MASS Report - Tall tower
172-173	Reserved
174	MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - clear
175	MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - cloudy
176-179	Reserved
180	MASS Report - Surface marine with reported station pressure (SHIP, BUOY, C-MAN or tide gauge)
181	MASS Report - Surface land with reported station pressure (SYNOP, METAR)
182	MASS Report - Splash-level dropsonde over ocean
183	MASS Report - Surface marine with missing station pressure (SHIP, BUOY, C-MAN or tide gauge)
184-186	Reserved
187	MASS Report - Surface land with missing station pressure (SYNOP, METAR)
188	MASS Report - Surface mesonet
189-190	Reserved
191	MASS Report - Australian PAOB mean sea-level pressure bogus over ocean
192	MASS Report - Surface land with missing station pressure and missing sea-level pressure (SYNOP)
193	MASS Report - Surface land with missing station pressure, missing sea-level pressure and missing altimeter setting (METAR)
194	MASS Report - Surface marine or land with missing station pressure and missing sea-level pressure (SHIP, BUOY, C-MAN, tide gauge, SYNOP, METAR)
195	MASS Report - Surface mesonet with missing station pressure and missing altimeter setting
196-209	Reserved
210	WIND Report - Synthetic (bogus) tropical cyclone
211-212	Reserved
213	WIND Report - Stepped Frequency Microwave Radiometer (SFMR) winds from reconnaisance High-Density Observations (HDOB)
214-219	Reserved
220	WIND Report - Rawinsonde
221	WIND Report - PIBAL
222	WIND Report - Class sounding
223	WIND Report - NOAA Profiler Network (NPN) wind profiler
224	WIND Report - NeXRaD Vertical Azimuth Display (VAD)
225-226	Reserved
227	WIND Report - Multi-agency (MAP) wind profiler
228	WIND Report - Japanese Meteorological Agency (JMA) wind profiler
229	WIND Report - Wind profiler from PILOT
230	WIND Report - AIREP or PIREP aircraft
231	WIND Report - AMDAR aircraft
232	WIND Report - Flight-level reconnaissance and profile dropsonde
233	WIND Report - MDCRS ACARS aircraft
234	WIND Report - TAMDAR aircraft
235	WIND Report - Canadian AMDAR aircraft
236-239	Reserved
240	WIND Report - NESDIS infrared cloud drift (short wave)
241	WIND Report - India infrared and visible cloud drift
242	WIND Report - Japan infrared and visible cloud drift at levels below 850 mb
243	WIND Report - EUMETSAT infrared and visible cloud drift at levels below 850 mb
244	WIND Report - AVHRR/POES infrared cloud drift
245	WIND Report - NESDIS infrared cloud drift (long wave)
246	WIND Report - NESDIS imager water vapor - cloud top
247	WIND Report - NESDIS imager water vapor - deep layer
248	WIND Report - NESDIS sounder water vapor - cloud top
249	WIND Report - NESDIS sounder water vapor - deep layer
250	WIND Report - Japan imager water vapor, cloud top and deep layer
251	WIND Report - NESDIS visible cloud drift
252	WIND Report - Japan infrared and visible cloud drift at levels above 850 mb
253	WIND Report - EUMETSAT infrared and visible cloud drift at levels above 850 mb
254	WIND Report - EUMETSAT imager water vapor, cloud top and deep layer
255	WIND Report - NESDIS picture triplet cloud drift
256	WIND Report - India imager water vapor
257	WIND Report - MODIS/POES infrared cloud drift
258	WIND Report - MODIS/POES imager water vapor - cloud top
259	WIND Report - MODIS/POES imager water vapor - deep layer
260	WIND Report - VIIRS/POES infrared cloud drift
261-269	Reserved
270	WIND Report - Nacelle
271	WIND Report - Tall tower
272-279	Reserved
280	WIND Report - Surface marine with reported station pressure (SHIP, BUOY, C-MAN or tide gauge)
281	WIND Report - Surface land with reported station pressure (SYNOP, METAR)
282	WIND Report - ATLAS BUOY
283	WIND Report - SSM/I superobed (1 degree lat/long) Neural net-3 wind speed over ocean
284	WIND Report - Surface marine (SHIP, BUOY, C-MAN or tide gauge) or surface land (SYNOP, METAR) with missing station pressure
285	WIND Report - Superobed (0.5 degree lat/long) scatterometer winds over ocean (QUIKSCAT)
286	WIND Report - Scatterometer winds over ocean (ERS)
287	WIND Report - Surface land (METAR) with missing station pressure
288	WIND Report - Surface mesonet
289	WIND Report - Superobed (1 degree lat/long) scatterometer winds over ocean (WINDSAT)
290	WIND Report - Non-superobed Advanced SCATterometer (ASCAT) winds with 50 km resolution
291	WIND Report - Oceansat SCATterometer (OSCAT) winds
292	WIND Report - Surface land with missing station pressure and missing sea-level pressure (SYNOP)
293	WIND Report - Surface land with missing station pressure, missing sea-level pressure and missing altimeter setting (METAR)
294	WIND Report - Surface marine or land with missing station pressure and missing sea-level pressure (SHIP, BUOY, C-MAN, tide gauge, SYNOP, METAR)
295	WIND Report - Surface mesonet with missing station pressure and missing altimeter setting
296	WIND Report - SMOS
297-1022	Reserved
1023	Missing value

When the value of
0-01-225 - NCNW (NCEP network)

= 3 (CDAS)

Code figure	Meaning
0-101	Reserved
102	MASS Report - SSM/I 7-channel brightness temperatures
103-110	Reserved
111	MASS Report - Synthetic (bogus) tropical cyclone storm center
112-119	Reserved
120	MASS Report - Rawinsonde
121	Reserved
122	MASS Report - Class sounding
123-129	Reserved
130	MASS Report - AIREP or PIREP aircraft
131	MASS Report - AMDAR aircraft
132	MASS Report - Flight-level reconnaissance and profile dropsonde
133	MASS Report - MDCRS ACARS aircraft
134-149	Reserved
150	MASS Report - SSM/I superobed (1 degree lat/long) FNMOC rain rate
151	MASS Report - NESDIS 1x1 cloud top pressure, temperature and cloud amount
152	MASS Report - SSM/I superobed (1 degree lat/long) Neural net-3 precipitable water over ocean
153-155	Reserved
156	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - clear
157	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - cloudy
158	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - clear
159	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - cloudy
160	Reserved
161	MASS Report - NESDIS ATOVS virtual temperature soundings at 250 km resolution over land - clear
162	Reserved
163	MASS Report - NESDIS ATOVS virtual temperature soundings at 250 km resolution over land - cloudy
164	MASS Report - NESDIS 1x1 field-of-view radiances water over land - clear
165	MASS Report - NESDIS 1x1 field-of-view radiances water over land - cloudy
166-170	Reserved
171	MASS Report - NESDIS ATOVS virtual temperature soundings at 250 km resolution over ocean - clear
172	Reserved
173	MASS Report - NESDIS ATOVS virtual temperature soundings at 250 km resolution over ocean - cloudy
174	MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - clear
175	MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - cloudy
176-179	Reserved
180	MASS Report - Surface marine with reported station pressure (SHIP, BUOY, C-MAN or tide gauge)
181	MASS Report - Surface land with reported station pressure (SYNOP, METAR)
182	MASS Report - Splash-level dropsonde over ocean
183	MASS Report - Surface marine with missing station pressure (SHIP, BUOY, C-MAN or tide gauge)
184-186	Reserved
187	MASS Report - Surface land with missing station pressure (SYNOP, METAR)
188-189	Reserved
190	MASS Report - OPC/NOS point mean sea-level pressure bogus over ocean
191	MASS Report - Australian PAOB mean sea-level pressure bogus over ocean
192-209	Reserved
210	WIND Report - Synthetic (bogus) tropical cyclone storm center
211-212	Reserved
213	WIND Report - Stepped Frequency Microwave Radiometer (SFMR) winds from reconnaisance High-Density Observations (HDOB)
214-219	Reserved
220	WIND Report - Rawinsonde
221	WIND Report - PIBAL
222	WIND Report - Class sounding
223	WIND Report - NOAA Profiler Network (NPN) wind profiler
224	WIND Report - NeXRaD Vertical Azimuth Display (VAD)
225-229	Reserved
230	WIND Report - AIREP or PIREP aircraft
231	WIND Report - AMDAR aircraft
232	WIND Report - Flight-level reconnaissance and profile dropsonde
233	WIND Report - MDCRS ACARS aircraft
234-240	Reserved
241	WIND Report - India infrared and visible cloud drift
242	WIND Report - Japan infrared and visible cloud drift at levels below 850 mb
243	WIND Report - EUMETSAT infrared and visible cloud drift at levels below 850 mb
244	Reserved
245	WIND Report - NESDIS infrared cloud drift (long wave)
246	WIND Report - NESDIS imager water vapor - cloud top
247	WIND Report - NESDIS imager water vapor - deep layer
248	WIND Report - NESDIS sounder water vapor - cloud top
249	WIND Report - NESDIS sounder water vapor - deep layer
250	WIND Report - Japan imager water vapor, cloud top and deep layer
251	WIND Report - NESDIS visible cloud drift
252	WIND Report - Japan infrared and visible cloud drift at levels above 850 mb
253	WIND Report - EUMETSAT infrared and visible cloud drift at levels above 850 mb
254	WIND Report - EUMETSAT imager water vapor, cloud top and deep layer
255	WIND Report - NESDIS picture triplet cloud drift
256	WIND Report - India imager water vapor
257-279	Reserved
280	WIND Report - Surface marine with reported station pressure (SHIP, BUOY, C-MAN or tide gauge)
281	WIND Report - Surface land with reported station pressure (SYNOP, METAR)
282	WIND Report - ATLAS BUOY
283	WIND Report - SSM/I superobed (1 degree lat/long) Neural net-3 wind speed over ocean
284	WIND Report - Surface marine (SHIP, BUOY, C-MAN or tide gauge) or surface land (SYNOP, METAR) with missing station pressure
285	WIND Report - Superobed (0.5 degree lat/long) scatterometer winds over ocean (QUIKSCAT)
286	WIND Report - Scatterometer winds over ocean (ERS)
287	WIND Report - Surface land (METAR) with missing station pressure
288-1022	Reserved
1023	Missing value

When the value of
0-01-225 - NCNW (NCEP network)

= 4 (NAM)

Code figure	Meaning
0-110	Reserved
111	MASS Report - Synthetic (bogus) tropical cyclone storm center
112-119	Reserved
120	MASS Report - Rawinsonde
121	Reserved
122	MASS Report - Class sounding
123-125	Reserved
126	MASS Report - RASS temperature profile
127-129	Reserved
130	MASS Report - AIREP or PIREP aircraft
131	MASS Report - AMDAR aircraft
132	MASS Report - Flight-level reconnaissance and profile dropsonde
133	MASS Report - MDCRS ACARS aircraft
134	MASS Report - TAMDAR aircraft
135	MASS Report - Canadian AMDAR aircraft
136-149	Reserved
150	MASS Report - SSM/I superobed (1 degree lat/long) FNMOC rain rate
151	MASS Report - NESDIS 1x1 cloud top pressure, temperature and cloud amount
152	MASS Report - SSM/I superobed (1 degree lat/long) Neural net-3 precipitable water over ocean
153	MASS Report - GPS integrated precipitable water
154-155	Reserved
156	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - clear
157	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - cloudy
158	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - clear
159	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - cloudy
160-163	Reserved
164	MASS Report - NESDIS 1x1 field-of-view radiances water over land - clear
165	MASS Report - NESDIS 1x1 field-of-view radiances water over land - cloudy
166-169	Reserved
170	MASS Report - Nacelle
171	MASS Report - Tall tower
172-173	Reserved
174	MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - clear
175	MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - cloudy
176-179	Reserved
180	MASS Report - Surface marine with reported station pressure (SHIP, BUOY, C-MAN or tide gauge)
181	MASS Report - Surface land with reported station pressure (SYNOP, METAR)
182	MASS Report - Splash-level dropsonde over ocean
183	MASS Report - Surface marine with missing station pressure (SHIP, BUOY, C-MAN or tide gauge)
184-186	Reserved
187	MASS Report - Surface land with missing station pressure (SYNOP, METAR)
188	MASS Report - Surface mesonet
189-190	Reserved
191	MASS Report - Australian PAOB mean sea-level pressure bogus over ocean
192	MASS Report - Surface land with missing station pressure and missing sea-level pressure (SYNOP)
193	MASS Report - Surface land with missing station pressure, missing sea-level pressure and missing altimeter setting (METAR)
194	MASS Report - Surface marine or land with missing station pressure and missing sea-level pressure (SHIP, BUOY, C-MAN, tide gauge, SYNOP, METAR)
195	MASS Report - Surface mesonet with missing station pressure and missing altimeter setting
196-209	Reserved
210	WIND Report - Synthetic (bogus) tropical cyclone storm center
211-212	Reserved
213	WIND Report - Stepped Frequency Microwave Radiometer (SFMR) winds from reconnaisance High-Density Observations (HDOB)
214-219	Reserved
220	WIND Report - Rawinsonde
221	WIND Report - PIBAL
222	WIND Report - Class sounding
223	WIND Report - NOAA Profiler Network (NPN) wind profiler
224	WIND Report - NeXRaD Vertical Azimuth Display (VAD)
225-226	Reserved
227	WIND Report - Multi-agency (MAP) wind profiler
228	WIND Report - Japanese Meteorological Agency (JMA) wind profiler
229	WIND Report - Wind profiler from PILOT
230	WIND Report - AIREP or PIREP aircraft
231	WIND Report - AMDAR aircraft
232	WIND Report - Flight-level reconnaissance and profile dropsonde
233	WIND Report - MDCRS ACARS aircraft
234	WIND Report - TAMDAR aircraft
235	WIND Report - Canadian AMDAR aircraft
236-239	Reserved
240	WIND Report - NESDIS infrared cloud drift (short wave)
241	WIND Report - India infrared and visible cloud drift
242	WIND Report - Japan infrared and visible cloud drift at levels below 850 mb
243	WIND Report - EUMETSAT infrared and visible cloud drift at levels below 850 mb
244	WIND Report - AVHRR/POES infrared cloud drift
245	WIND Report - NESDIS infrared cloud drift (long wave)
246	WIND Report - NESDIS imager water vapor - cloud top
247	WIND Report - NESDIS imager water vapor - deep layer
248	WIND Report - NESDIS sounder water vapor - cloud top
249	WIND Report - NESDIS sounder water vapor - deep layer
250	WIND Report - Japan imager water vapor, cloud top and deep layer
251	WIND Report - NESDIS visible cloud drift
252	WIND Report - Japan infrared and visible cloud drift at levels above 850 mb
253	WIND Report - EUMETSAT infrared and visible cloud drift at levels above 850 mb
254	WIND Report - EUMETSAT imager water vapor, cloud top and deep layer
255	WIND Report - NESDIS picture triplet cloud drift
256	WIND Report - India imager water vapor
257	WIND Report - MODIS/POES infrared cloud drift
258	WIND Report - MODIS/POES imager water vapor - cloud top
259	WIND Report - MODIS/POES imager water vapor - deep layer
260	WIND Report - VIIRS/POES infrared cloud drift
261-269	Reserved
270	WIND Report - Nacelle
271	WIND Report - Tall tower
272-279	Reserved
280	WIND Report - Surface marine with reported station pressure (SHIP, BUOY, C-MAN or tide gauge)
281	WIND Report - Surface land with reported station pressure (SYNOP, METAR)
282	WIND Report - ATLAS BUOY
283	WIND Report - SSM/I superobed (1 degree lat/long) Neural net-3 wind speed over ocean
284	WIND Report - Surface marine (SHIP, BUOY, C-MAN or tide gauge) or surface land (SYNOP, METAR) with missing station pressure
285	WIND Report - Superobed (0.5 degree lat/long) scatterometer winds over ocean (QUIKSCAT)
286	WIND Report - Scatterometer winds over ocean (ERS)
287	WIND Report - Surface land (METAR) with missing station pressure
288	WIND Report - Surface mesonet
289	WIND Report - Superobed (1 degree lat/long) scatterometer winds over ocean (WINDSAT)
290	WIND Report - Non-superobed Advanced SCATterometer (ASCAT) winds with 50 km resolution
291	WIND Report - Oceansat SCATterometer (OSCAT) winds
292	WIND Report - Surface land with missing station pressure and missing sea-level pressure (SYNOP)
293	WIND Report - Surface land with missing station pressure, missing sea-level pressure and missing altimeter setting (METAR)
294	WIND Report - Surface marine or land with missing station pressure and missing sea-level pressure (SHIP, BUOY, C-MAN, tide gauge, SYNOP, METAR)
295	WIND Report - Surface mesonet with missing station pressure and missing altimeter setting
296-1022	Reserved
1023	Missing value

When the value of
0-01-225 - NCNW (NCEP network)

= 5 (RAP)

Code figure	Meaning
0-110	Reserved
111	MASS Report - Synthetic (bogus) tropical cyclone storm center
112-119	Reserved
120	MASS Report - Rawinsonde
121	Reserved
122	MASS Report - Class sounding
123-125	Reserved
126	MASS Report - RASS temperature profile
127-129	Reserved
130	MASS Report - AIREP or PIREP aircraft
131	MASS Report - AMDAR aircraft
132	MASS Report - Flight-level reconnaissance and profile dropsonde
133	MASS Report - MDCRS ACARS aircraft
134	MASS Report - TAMDAR aircraft
135	MASS Report - Canadian AMDAR aircraft
136-149	Reserved
150	MASS Report - SSM/I superobed (1 degree lat/long) FNMOC rain rate
151	MASS Report - NESDIS 1x1 cloud top pressure, temperature and cloud amount
152	MASS Report - SSM/I superobed (1 degree lat/long) Neural net-3 precipitable water over ocean
153	MASS Report - GPS integrated precipitable water
154-155	Reserved
156	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - clear
157	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - cloudy
158	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - clear
159	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - cloudy
160-163	Reserved
164	MASS Report - NESDIS 1x1 field-of-view radiances water over land - clear
165	MASS Report - NESDIS 1x1 field-of-view radiances water over land - cloudy
166-169	Reserved
170	MASS Report - Nacelle
171	MASS Report - Tall tower
172-173	Reserved
174	MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - clear
175	MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - cloudy
176-179	Reserved
180	MASS Report - Surface marine with reported station pressure (SHIP, BUOY, C-MAN or tide gauge)
181	MASS Report - Surface land with reported station pressure (SYNOP, METAR)
182	MASS Report - Splash-level dropsonde over ocean
183	MASS Report - Surface marine with missing station pressure (SHIP, BUOY, C-MAN or tide gauge)
184-186	Reserved
187	MASS Report - Surface land with missing station pressure (SYNOP, METAR)
188	MASS Report - Surface mesonet
189-190	Reserved
191	MASS Report - Australian PAOB mean sea-level pressure bogus over ocean
192	MASS Report - Surface land with missing station pressure and missing sea-level pressure (SYNOP)
193	MASS Report - Surface land with missing station pressure, missing sea-level pressure and missing altimeter setting (METAR)
194	MASS Report - Surface marine or land with missing station pressure and missing sea-level pressure (SHIP, BUOY, C-MAN, tide gauge, SYNOP, METAR)
195	MASS Report - Surface mesonet with missing station pressure and missing altimeter setting
196-209	Reserved
210	WIND Report - Synthetic (bogus) tropical cyclone storm center
211-212	Reserved
213	WIND Report - Stepped Frequency Microwave Radiometer (SFMR) winds from reconnaisance High-Density Observations (HDOB)
214-219	Reserved
220	WIND Report - Rawinsonde
221	WIND Report - PIBAL
222	WIND Report - Class sounding
223	WIND Report - NOAA Profiler Network (NPN) wind profiler
224	WIND Report - NeXRaD Vertical Azimuth Display (VAD)
225-226	Reserved
227	WIND Report - Multi-agency (MAP) wind profiler
228	WIND Report - Japanese Meteorological Agency (JMA) wind profiler
229	WIND Report - Wind profiler from PILOT
230	WIND Report - AIREP or PIREP aircraft
231	WIND Report - AMDAR aircraft
232	WIND Report - Flight-level reconnaissance and profile dropsonde
233	WIND Report - MDCRS ACARS aircraft
234	WIND Report - TAMDAR aircraft
235	WIND Report - Canadian AMDAR aircraft
236-239	Reserved
240	WIND Report - NESDIS infrared cloud drift (short wave)
241	WIND Report - India infrared and visible cloud drift
242	WIND Report - Japan infrared and visible cloud drift at levels below 850 mb
243	WIND Report - EUMETSAT infrared and visible cloud drift at levels below 850 mb
244	WIND Report - AVHRR/POES infrared cloud drift
245	WIND Report - NESDIS infrared cloud drift (long wave)
246	WIND Report - NESDIS imager water vapor - cloud top
247	WIND Report - NESDIS imager water vapor - deep layer
248	WIND Report - NESDIS sounder water vapor - cloud top
249	WIND Report - NESDIS sounder water vapor - deep layer
250	WIND Report - Japan imager water vapor, cloud top and deep layer
251	WIND Report - NESDIS visible cloud drift
252	WIND Report - Japan infrared and visible cloud drift at levels above 850 mb
253	WIND Report - EUMETSAT infrared and visible cloud drift at levels above 850 mb
254	WIND Report - EUMETSAT imager water vapor, cloud top and deep layer
255	WIND Report - NESDIS picture triplet cloud drift
256	WIND Report - India imager water vapor
257	WIND Report - MODIS/POES infrared cloud drift
258	WIND Report - MODIS/POES imager water vapor - cloud top
259	WIND Report - MODIS/POES imager water vapor - deep layer
260	WIND Report - VIIRS/POES infrared cloud drift
261-269	Reserved
270	WIND Report - Nacelle
271	WIND Report - Tall tower
272-279	Reserved
280	WIND Report - Surface marine with reported station pressure (SHIP, BUOY, C-MAN or tide gauge)
281	WIND Report - Surface land with reported station pressure (SYNOP, METAR)
282	WIND Report - ATLAS BUOY
283	WIND Report - SSM/I superobed (1 degree lat/long) Neural net-3 wind speed over ocean
284	WIND Report - Surface marine (SHIP, BUOY, C-MAN or tide gauge) or surface land (SYNOP, METAR) with missing station pressure
285	WIND Report - Superobed (0.5 degree lat/long) scatterometer winds over ocean (QUIKSCAT)
286	WIND Report - Scatterometer winds over ocean (ERS)
287	WIND Report - Surface land (METAR) with missing station pressure
288	WIND Report - Surface mesonet
289	WIND Report - Superobed (1 degree lat/long) scatterometer winds over ocean (WINDSAT)
290	WIND Report - Non-superobed Advanced SCATterometer (ASCAT) winds with 50 km resolution
291	WIND Report - Oceansat SCATterometer (OSCAT) winds
292	WIND Report - Surface land with missing station pressure and missing sea-level pressure (SYNOP)
293	WIND Report - Surface land with missing station pressure, missing sea-level pressure and missing altimeter setting (METAR)
294	WIND Report - Surface marine or land with missing station pressure and missing sea-level pressure (SHIP, BUOY, C-MAN, tide gauge, SYNOP, METAR)
295	WIND Report - Surface mesonet with missing station pressure and missing altimeter setting
296-1022	Reserved
1023	Missing value

When the value of
0-01-225 - NCNW (NCEP network)

= 19 (RTMA/URMA)

Code figure	Meaning
0-110	Reserved
111	MASS Report - Synthetic (bogus) tropical cyclone storm center
112-119	Reserved
120	MASS Report - Rawinsonde
121	Reserved
122	MASS Report - Class sounding
123-125	Reserved
126	MASS Report - RASS temperature profile
127-129	Reserved
130	MASS Report - AIREP or PIREP aircraft
131	MASS Report - AMDAR aircraft
132	MASS Report - Flight-level reconnaissance and profile dropsonde
133	MASS Report - MDCRS ACARS aircraft
134	MASS Report - TAMDAR aircraft
135	MASS Report - Canadian AMDAR aircraft
136-149	Reserved
150	MASS Report - SSM/I superobed (1 degree lat/long) FNMOC rain rate
151	MASS Report - NESDIS 1x1 cloud top pressure, temperature and cloud amount
152	MASS Report - SSM/I superobed (1 degree lat/long) Neural net-3 precipitable water over ocean
153	MASS Report - GPS integrated precipitable water
154	MASS Report - GOES imager sky cover
155	Reserved
156	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - clear
157	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over land - cloudy
158	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - clear
159	MASS Report - NESDIS 1x1 field-of-view 4-layer precipitable water over ocean - cloudy
160-163	Reserved
164	MASS Report - NESDIS 1x1 field-of-view radiances water over land - clear
165	MASS Report - NESDIS 1x1 field-of-view radiances water over land - cloudy
166-169	Reserved
170	MASS Report - Nacelle
171	MASS Report - Tall tower
172-173	Reserved
174	MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - clear
175	MASS Report - NESDIS 1x1 field-of-view radiances water over ocean - cloudy
176-179	Reserved
180	MASS Report - Surface marine with reported station pressure (SHIP, BUOY, C-MAN or tide gauge)
181	MASS Report - Surface land with reported station pressure (SYNOP, METAR)
182	MASS Report - Splash-level dropsonde over ocean
183	MASS Report - Surface marine with missing station pressure (SHIP, BUOY, C-MAN or tide gauge)
184-186	Reserved
187	MASS Report - Surface land with missing station pressure (SYNOP, METAR)
188	MASS Report - Surface mesonet
189-190	Reserved
191	MASS Report - Australian PAOB mean sea-level pressure bogus over ocean
192	MASS Report - Surface land with missing station pressure and missing sea-level pressure (SYNOP)
193	MASS Report - Surface land with missing station pressure, missing sea-level pressure and missing altimeter setting (METAR)
194	MASS Report - Surface marine or land with missing station pressure and missing sea-level pressure (SHIP, BUOY, C-MAN, tide gauge, SYNOP, METAR)
195	MASS Report - Surface mesonet with missing station pressure and missing altimeter setting
196	MASS Report - Surface report is moved from over land to over water, to align properly with RTMA land/sea mask in Great Lakes region
197	MASS Report - Pseudo-surface report generated over water, based on existing surface report over land in Great Lakes region
198	MASS Report - Surface report is moved from over water to over land, to align properly with RTMA land/sea mask in Great Lakes region
199	MASS Report - Pseudo-surface report generated over land, based on existing surface report over water in Great Lakes region
200-209	Reserved
210	WIND Report - Synthetic (bogus) tropical cyclone storm center
211-212	Reserved
213	WIND Report - Stepped Frequency Microwave Radiometer (SFMR) winds from reconnaisance High-Density Observations (HDOB)
214-219	Reserved
220	WIND Report - Rawinsonde
221	WIND Report - PIBAL
222	WIND Report - Class sounding
223	WIND Report - NOAA Profiler Network (NPN) wind profiler
224	WIND Report - NeXRaD Vertical Azimuth Display (VAD)
225-226	Reserved
227	WIND Report - Multi-agency (MAP) wind profiler
228	WIND Report - Japanese Meteorological Agency (JMA) wind profiler
229	WIND Report - Wind profiler from PILOT
230	WIND Report - AIREP or PIREP aircraft
231	WIND Report - AMDAR aircraft
232	WIND Report - Flight-level reconnaissance and profile dropsonde
233	WIND Report - MDCRS ACARS aircraft
234	WIND Report - TAMDAR aircraft
235	WIND Report - Canadian AMDAR aircraft
236-239	Reserved
240	WIND Report - NESDIS infrared cloud drift (short wave)
241	WIND Report - India infrared and visible cloud drift
242	WIND Report - Japan infrared and visible cloud drift at levels below 850 mb
243	WIND Report - EUMETSAT infrared and visible cloud drift at levels below 850 mb
244	WIND Report - AVHRR/POES infrared cloud drift
245	WIND Report - NESDIS infrared cloud drift (long wave)
246	WIND Report - NESDIS imager water vapor - cloud top
247	WIND Report - NESDIS imager water vapor - deep layer
248	WIND Report - NESDIS sounder water vapor - cloud top
249	WIND Report - NESDIS sounder water vapor - deep layer
250	WIND Report - Japan imager water vapor, cloud top and deep layer
251	WIND Report - NESDIS visible cloud drift
252	WIND Report - Japan infrared and visible cloud drift at levels above 850 mb
253	WIND Report - EUMETSAT infrared and visible cloud drift at levels above 850 mb
254	WIND Report - EUMETSAT imager water vapor, cloud top and deep layer
255	WIND Report - NESDIS picture triplet cloud drift
256	WIND Report - India imager water vapor
257	WIND Report - MODIS/POES infrared cloud drift
258	WIND Report - MODIS/POES imager water vapor - cloud top
259	WIND Report - MODIS/POES imager water vapor - deep layer
260	WIND Report - VIIRS/POES infrared cloud drift
261-269	Reserved
270	WIND Report - Nacelle
271	WIND Report - Tall tower
272-279	Reserved
280	WIND Report - Surface marine with reported station pressure (SHIP, BUOY, C-MAN or tide gauge)
281	WIND Report - Surface land with reported station pressure (SYNOP, METAR)
282	WIND Report - ATLAS BUOY
283	WIND Report - SSM/I superobed (1 degree lat/long) Neural net-3 wind speed over ocean
284	WIND Report - Surface marine (SHIP, BUOY, C-MAN or tide gauge) or surface land (SYNOP, METAR) with missing station pressure
285	WIND Report - Superobed (0.5 degree lat/long) scatterometer winds over ocean (QUIKSCAT)
286	WIND Report - Scatterometer winds over ocean (ERS)
287	WIND Report - Surface land (METAR) with missing station pressure
288	WIND Report - Surface mesonet
289	WIND Report - Superobed (1 degree lat/long) scatterometer winds over ocean (WINDSAT)
290	WIND Report - Non-superobed Advanced SCATterometer (ASCAT) winds with 50 km resolution
291	WIND Report - Oceansat SCATterometer (OSCAT) winds
292	WIND Report - Surface land with missing station pressure and missing sea-level pressure (SYNOP)
293	WIND Report - Surface land with missing station pressure, missing sea-level pressure and missing altimeter setting (METAR)
294	WIND Report - Surface marine or land with missing station pressure and missing sea-level pressure (SHIP, BUOY, C-MAN, tide gauge, SYNOP, METAR)
295	WIND Report - Surface mesonet with missing station pressure and missing altimeter setting
296	WIND Report - Surface report is moved from over land to over water, to align properly with RTMA land/sea mask in Great Lakes region
297	WIND Report - Pseudo-surface report generated over water, based on existing surface report over land in Great Lakes region
298	WIND Report - Surface report is moved from over water to over land, to align properly with RTMA land/sea mask in Great Lakes region
299	WIND Report - Pseudo-surface report generated over land, based on existing surface report over water in Great Lakes region
300-1022	Reserved
1023	Missing value

0-55-008 - T29

PREPBUFR: Data dump report type

Code figure	Meaning
0-10	Reserved
11	Fixed land RAOB and PIBAL by block and station number
12	Fixed land RAOB and PIBAL by call letters
13	Mobile land RAOB, including CLAS soundings
14-21	Reserved
22	Ship RAOB with name
23	Ship RAOB without name (report id set to "SHIP")
24-30	Reserved
31	Reconnaissance aircraft or dropwinsonde
32-40	Reserved
41	Aircraft flight-level (all types)
42-60	Reserved
61	Satellite soundings/retrievals/radiances
62	Reserved
63	Satellite derived winds
64	Reserved
65	SSM/I total precipitable water (ocean) product
66	SSM/I rain rate product
67	Reserved
68	SSM/I brightness temperatures
69	SSM/I cloud water (ocean) product
70	Reserved
71	NOAA Profiler Network (NPN) Profiler winds
72	NEXRAD Vertical Azimuth Display (VAD) winds
73	Wind profiler originating in PIBAL bulletins (tropical and European)
74	GPS-IPW (Integrated Precipitable Water)
75	Multi-Agency Profiler (MAP) Profiler winds
76	Japanese Meteorological Agency (JMA) profiler winds
77	NOAA Profiler Network (NPN) or Multi-Agency Profiler (MAP) RASS temperatures
78-510	Reserved
511	Land surface by block and station number (synoptic, both unrestricted and restricted WMO Resolution 40)
512	Land surface by call letters (METAR)
513	Reserved
514	Mobile land surface (synoptic)
515-521	Reserved
522	Ship with name (TAC)
523	Ship without name (report ID set to "SHIP") (TAC)
524	Ship with name (BUFR)
525	Ship without name (report ID set to "SHIP") (BUFR)
526-529	Reserved
530	C-MAN platform (BUFR)
531	C-MAN platform (TAC)
532	Tide gauge report
533	Reserved
534	Coast Guard tide gauge report
535-539	Reserved
540	Mesonet surface
541-550	Reserved
551	Sea-level pressure bogus
552-560	Reserved
561	Fixed buoy arriving in WMO TAC FM-13 format
562	Fixed or drifting buoy arriving in WMO TAC FM-18 format
563	Fixed buoy arriving in WMO BUFR format
564	Drifting buoy arriving in WMO BUFR format
565-570	Reserved
571	SSM/I wind speed (ocean) product
572	Reserved
573	SSM/I soil moisture product
574	SSM/I snow depth product
575	SSM/I additional products (surface tag, ice concentration, ice age, ice edge, calculated surface type)
576	SSM/I surface (skin) temperature product
577	SSM/I sea surface temperature product
578-580	Reserved
581	ERS scatterometer winds
582	QuikSCAT scatterometer winds
583	WindSAT scatterometer winds (Navy- or NESDIS- produced)
584	ASCAT scatterometer winds
585-1022	Reserved
1023	Missing value

0-55-009 - TSB

PREPBUFR: Report subtype

When the value of
0-55-007 - TYP (PREPBUFR: Report type)

= 130 (MASS Report - AIREP or PIREP aircraft)
or
= 230 (WIND Report - AIREP or PIREP aircraft)

Code figure	Meaning
0	Report originated from WMO bulletin
1	Report originated from AFWA
2-16382	Reserved
16383	Missing value

When the value of
0-55-007 - TYP (PREPBUFR: Report type)

= 132 (MASS Report - Flight-level reconnaissance and profile dropsonde)
or
= 232 (WIND Report - Flight-level reconnaissance and profile dropsonde)

Code figure	Meaning
0	Reserved
1	Reconnaissance report
2	Dropwinsonde report
3-16382	Reserved
16383	Missing value

When the value of
0-55-007 - TYP (PREPBUFR: Report type)

= 131 (MASS Report - AMDAR aircraft)
or
= 135 (MASS Report - Canadian AMDAR aircraft)
or
= 231 (WIND Report - AMDAR aircraft)
or
= 235 (WIND Report - Canadian AMDAR aircraft)

Code figure	Meaning
0	Aircraft is not banking
1	Reserved
2	Aircraft is banking
3-16382	Reserved
16383	Missing value

0-55-020 - TABLAT

Table A data type

Code figure	Meaning
0	Surface data - land
1	Surface data - sea
2	Vertical soundings (other than satellite)
3	Vertical soundings (satellite)
4	Single level upper-air data (other than satellite)
5	Single level upper-air data (satellite)
6	Radar data
7	Synoptic features
8	Physical/chemical constituents
9	Dispersal and transport
10	Radiological data
11	BUFR tables, complete replacement or update
12	Surface data (satellite)
13	Forecasts
14	Warnings
15-19	Reserved
20	Status information
21	Radiances (satellite)
22	Radar (satellite) but not altimeter nor scatterometer
23	Lidar (satellite)
24	Scatterometry (satellite)
25	Altimetry (satellite)
26	Spectrometry (satellite)
27	Gravity measurement (satellite)
28	Precision orbit (satellite)
29	Space environment (satellite)
30	Calibration dataset (satellite)
31	Oceanographic data
32	Lidar (ground-based)
33-100	Reserved
101	Image data
102-254	Reserved
255	Other category

0-55-021 - TABLASS

Table A data subtype (WMO standard)

When the value of
0-55-020 - TABLAT (Table A data type)

= 0 (Surface data - land)

Code figure	Meaning
0	Hourly synoptic observations from fixed-land stations (SYNOP)
1	Intermediate synoptic observations from fixed-land stations (SYNOP)
2	Main synoptic observations from fixed-land stations (SYNOP)
3	Hourly synoptic observations from mobile-land stations (SYNOP MOBIL)
4	Intermediate synoptic observations from mobile-land stations (SYNOP MOBIL)
5	Main synoptic observations from mobile land stations (SYNOP MOBIL)
6	One-hour observations from automated stations
7	n-minute observations from AWS stations
8	Radiation observations from one-hour period
9	Radiation observations from n-minute period
10	Routine aeronautical observations (METAR)
11	Special aeronautical observations (SPECI)
12-13	Reserved
14	Ground-based GPS humidity observations (GPSIWV)
15-19	Reserved
20	Climatological observations (CLIMAT)
21	Climatological observations (monthly reports of daily climate data)
22-29	Reserved
30	Sferics locations
31-39	Reserved
40	Hydrologic reports
41-49	Reserved
50	Hourly synoptic observations with supplementary one-hour data
51	Intermediate synoptic observations with supplementary one-hour data
52	Main synoptic observations with supplementary one-hour data

When the value of
0-55-020 - TABLAT (Table A data type)

= 1 (Surface data - sea)

Code figure	Meaning
0	Synoptic observations (SHIP)
1-5	Reserved
6	One-hour observations from automated stations
7	n-minute observations from AWS stations
8-14	Reserved
15	Uncrewed surface vehicle
16-19	Reserved
20	Climatological observations (CLIMAT SHIP)
21-24	Reserved
25	Buoy observation (BUOY)
26-29	Reserved
30	Tide gauge
31	Observed water level time series

When the value of
0-55-020 - TABLAT (Table A data type)

= 2 (Vertical soundings (other than satellite))

Code figure	Meaning
0	Reserved
1	Upper-wind reports from fixed-land stations (PILOT)
2	Upper-wind reports from ships (PILOT SHIP)
3	Upper-wind reports from mobile-land stations (PILOT MOBIL)
4	Upper-level temperature/humidity/wind reports from fixed-land stations (TEMP)
5	Upper-level temperature/humidity/wind reports from ships (TEMP SHIP)
6	Upper-level temperature/humidity/wind report from mobile-land stations (TEMP MOBIL)
7	Upper-level temperature/humidity/wind reports from dropwinsondes (TEMP DROP)
8-9	Reserved
10	Wind profiler reports
11	RASS temperature profiles
12-13	Reserved
14	Upper-level temperature/humidity/wind reports from descent radiosondes originally launched from fixed land stations
15	Upper-level temperature/humidity/wind reports from descent radiosondes originally launched from ships
16	Upper-level temperature/humidity/wind reports from descent radiosondes originally launched from mobile land stations
17-19	Reserved
20	ASDAR/ACARS profiles (AMDAR)
21	Profiles of atmospheric constituents concentrations
22-24	Reserved
25	Climatological observations from fixed-land stations (CLIMAT TEMP)
26	Climatological observations from ships (CLIMAT TEMP SHIP)
27-39	Reserved
40	MW temperature/humidity sounding

When the value of
0-55-020 - TABLAT (Table A data type)

= 3 (Vertical soundings (satellite))

Code figure	Meaning
0	Temperature (SATEM)
1	TIROS (TOVS)
2	ATOVS
3	AMSU-A
4	AMSU-B
5	HIRS
6	MHS
7	IASI
8	VASS (Vertical atmospheric sounding system)
9-19	Reserved
20	IR temperature/humidity sounding
21-29	Reserved
30	Hyperspectral temperature/humidity sounding
31-39	Reserved
40	MW temperature/humidity sounding
41-49	Reserved
50	Radio occultation sounding

When the value of
0-55-020 - TABLAT (Table A data type)

= 4 (Single level upper-air data (other than satellite))

Code figure	Meaning
0	ASDAR/ACARS (AMDAR)
1	Manual (AIREP,PIREP)
2	Mode-S

When the value of
0-55-020 - TABLAT (Table A data type)

= 5 (Single level upper-air data (satellite))

Code figure	Meaning
0	Cloud wind data (SATOB)
1	Cloud properties

When the value of
0-55-020 - TABLAT (Table A data type)

= 6 (Radar data)

Code figure	Meaning
0	Reflectivity data
1	Doppler wind profiles
2	Derived products
3	Ground radar weather (RADOB)

When the value of
0-55-020 - TABLAT (Table A data type)

= 7 (Synoptic features)

Code figure	Meaning
0	Forecast Tropical cyclone tracks from EPS
1	Squall Line
2	Forecast tropical cyclone from deterministic system

When the value of
0-55-020 - TABLAT (Table A data type)

= 8 (Physical/chemical constituents)

Code figure	Meaning
0	Surface ozone
1	Ozone vertical sounding
2	Total ozone
3	Acid rain
4	Aerosol

When the value of
0-55-020 - TABLAT (Table A data type)

= 9 (Dispersal and transport)

Code figure	Meaning
0	Trajectories, analysis or forecast

When the value of
0-55-020 - TABLAT (Table A data type)

= 10 (Radiological data)

Code figure	Meaning
0	Reserved
1	Observation (RADREP)
2	Forecast (RADOF)

When the value of
0-55-020 - TABLAT (Table A data type)

= 12 (Surface data (satellite))

Code figure	Meaning
0	ERS-uwa
1	ERS-uwi
2	ERS-ura
3	ERS-uat
4	SSM/I radiometer
5	Quickscat
6	Surface temp./radiation (SATOB)
7	ASCAT data
8	Soil moisture
9	Normalised differential vegetation index (NDVI)
10	Normalised radar backscatter
11	Surface emissivity
12	Sea surface temperature
13	Precipitation

When the value of
0-55-020 - TABLAT (Table A data type)

= 21 (Radiances (satellite))

Code figure	Meaning
0	Earth radiation budget
1-4	Reserved
5	Cross-track Infrared Sounder
6	Advanced Technology Microwave Sounder
7	Visible/Infrared Imager Radiometer Suite

When the value of
0-55-020 - TABLAT (Table A data type)

= 22 (Radar (satellite) but not altimeter nor scatterometer)

Code figure	Meaning
0	Cloud and precipitation radar
1	Synthetic Aperture Radar

When the value of
0-55-020 - TABLAT (Table A data type)

= 23 (Lidar (satellite))

Code figure	Meaning
0	Lidar based missions (for wind, for cloud/aerosol, for water vapour, for altimetry)

When the value of
0-55-020 - TABLAT (Table A data type)

= 24 (Scatterometry (satellite))

Code figure	Meaning
0	Wind scatterometry

When the value of
0-55-020 - TABLAT (Table A data type)

= 25 (Altimetry (satellite))

Code figure	Meaning
0	Radar altimetry

When the value of
0-55-020 - TABLAT (Table A data type)

= 26 (Spectrometry (satellite))

Code figure	Meaning
0	Cross nadir shortwave spectrometry (for chemistry)
1	Cross nadir IR spectrometry (for chemistry)
2	Limb sounding shortwave spectrometry
3	Limb sounding IR spectrometry
4	Limb sounding sub-millimetre wave spectrometry

When the value of
0-55-020 - TABLAT (Table A data type)

= 30 (Calibration dataset (satellite))

Code figure	Meaning
0	Subsetted data
1	Collocated data
2	On-board calibration data
3	Bias monitoring
4	Near real-time correction
5	Re-analysis correction

When the value of
0-55-020 - TABLAT (Table A data type)

= 31 (Oceanographic data)

Code figure	Meaning
0	Surface observation
1	Surface observation along track (TRACKOB)
2	Spectral wave observation (WAVEOB)
3	Bathythermal observation (BATHY)
4	Sub-surface floats (profile)
5	XBT/XCTD profiles (TESAC)
6	Waves reports
7	Tsunameter data
8	Glider data

When the value of
0-55-020 - TABLAT (Table A data type)

= 101 (Image data)

Code figure	Meaning
0	Multi-purpose VIS/IR imagery
1	Conical scanning MW imagery (intermediate frequencies)
2	Low frequency MW imagery
3	Ocean colour imagery
4	Imagery with special viewing geometry
5	Lightning imagery
6	High resolution shortwave imagery for land observation
7	SMOS data

When the value of
0-55-020 - TABLAT (Table A data type)

= 32 (Lidar (ground-based))

Code figure	Meaning
0	Wind, cloud, aerosol

0-55-022 - TABLASL

Table A data subtype (NCEP local)

When the value of
0-55-020 - TABLAT (Table A data type)

= 0 (Surface data - land)

Code figure	Meaning
0	Synoptic land - restricted (WMO Resolution 40)
1	Synoptic land - fixed
2	Synoptic land - mobil
3-6	Reserved
7	Aviation - METAR/SPECI
8	NOAA Profiler Network (NPN) and Multi-Agency Profiler (MAP) surface data
9	Reserved
10	SHEF products - not included within any other subtype
11	SHEF products - AFOS (precipitation)
12	Supplementary climatological data
13-14	Reserved
15	Snow cover, depth/density, and water equivalent
16-19	Reserved
20	Wind energy Nacelle - restricted
21-99	Reserved
100	Synoptic land - restricted (WMO Resolution 40) (BUFR)
101	Synoptic land - fixed (BUFR)
102	Synoptic land - mobil (BUFR)

When the value of
0-55-020 - TABLAT (Table A data type)

= 1 (Surface data - sea)

Code figure	Meaning
0	Reserved
1	Surface marine ship - restricted
2	Surface marine buoy (FM 18)
3	Surface marine buoy (FM 13)
4	Surface marine CMAN
5	Surface tide gauge (CREX)
6	Mean sea level pressure bogus
7	Surface marine Coast Guard
8	Surface tide gauge (CMAN)
9	USGS river/stream
10	Surface marine CMAN (SHEF)
11	Surface marine buoy (SHEF)
12	Surface tide gauge (SHEF)
13	Surface marine ship
14	RVF river forecast
15-20	Reserved
21	Canadian water level
22	Canadian river gauge
23-100	Reserved
101	Surface marine ship - restricted (BUFR)
102	Surface marine drifting buoy (BUFR)
103	Surface marine moored buoy (BUFR)
104	Surface marine CMAN (BUFR)
105-112	Reserved
113	Surface marine ship (BUFR)
114-119	Reserved
120	Surface marine saildrone (BUFR)
121	Surface marine SOFAR (BUFR)

When the value of
0-55-020 - TABLAT (Table A data type)

= 2 (Vertical soundings (other than satellite))

Code figure	Meaning
0	Reserved
1	Rawinsonde - fixed land
2	Rawinsonde - mobil land
3	Rawinsonde - ship
4	Dropwinsonde
5	PIBAL
6	Reserved
7	NOAA Profiler Network (NPN) winds
8	NeXRaD Velocity Azimuth Display (VAD) winds (Radar Coded Message)
9	Profiler winds (PIBAL)
10	NOAA Profiler Network (NPN) and Multi-Agency Profiler (MAP) spectral moments
11	Multi-Agency Profiler (MAP) winds
12	NOAA Profiler Network (NPN) and Multi-Agency Profiler (MAP) RASS temperatures
13	Japan profiler winds
14	Other profiler winds
15	Reserved
16	Europe profiler winds
17	NeXRaD Velocity Azimuth Display (VAD) winds (Level 2)
18	Other Velocity Azimuth Display (VAD) winds (BUFR)
19	Reserved
20	Wind energy tower - restricted
21	Wind energy tower
22-100	Reserved
101	Rawinsonde - fixed land (BUFR)
102	Rawinsonde - mobil land (BUFR)
103	Rawinsonde - ship (BUFR)
104	Dropwinsonde (BUFR)
105	PIBAL (BUFR)

When the value of
0-55-020 - TABLAT (Table A data type)

= 3 (Vertical soundings (satellite))

Code figure	Meaning
0	Reserved
1	GOES 5x5 FOV cloud and sounder radiances
2	GOES 1x1 FOV cloud
3	GOES 1x1 FOV sounder radiances
4-9	Reserved
10	Radio occultation
11-100	Reserved
101	Polar orbiting - TOVS
102	Polar orbiting - RTOVS
103	Reserved
104	Polar orbiting - ATOVS

When the value of
0-55-020 - TABLAT (Table A data type)

= 4 (Single level upper-air data (other than satellite))

Code figure	Meaning
0	Reserved
1	AIREP
2	PIREP
3	ASDAR/ACARS (AMDAR)
4	U.S. ASDAR/ACARS (ARINC to NCEP)
5	Flight level reconnaisance (RECCO)
6	Europe ASDAR/ACARS
7	U.S. ASDAR/ACARS (ARINC to AFWA to NCEP)
8	TAMDAR (MADIS Mesaba)
9	Canada ASDAR/ACARS
10	TAMDAR (BUFR)
11	Korea ASDAR/ACARS
12	TAMDAR (MADIS PenAir)
13	TAMDAR (MADIS Chautauqua)
14	France ASDAR/ACARS
15	Flight level reconnaisance (High Density Observations)
16	Mode-S ASDAR/ACARS
17-102	Reserved
103	ASDAR/ACARS (BUFR)

When the value of
0-55-020 - TABLAT (Table A data type)

= 5 (Single level upper-air data (satellite))

Code figure	Meaning
0	Reserved
1	GOES low-density winds - infrared (long-wave) (NESDIS binary format)
2	GOES low-density winds - visible (NESDIS binary format)
3	GOES low-density winds - water vapor imager (NESDIS binary format)
4	GOES low-density winds - picture triplet (NESDIS binary format)
5	GOES high-density winds - infrared (long-wave) (NESDIS binary format)
6	GOES high-density winds - water vapor imager (NESDIS binary format)
7	Reserved
8	GOES high-density winds - visible (NESDIS binary format)
9	GOES high-density winds - picture triplet (NESDIS binary format)
10	GOES high-density winds - infrared (long-wave) (BUFR)
11	GOES high-density winds - water vapor imager (BUFR)
12	GOES high-density winds - visible (BUFR)
13	GOES high-density winds - picture triplet (BUFR)
14	GOES high-density winds - water vapor sounder (BUFR)
15	GOES high-density winds - infrared (long-wave) (BUFR via GTS)
16	GOES high-density winds - water vapor imager (BUFR via GTS)
17	GOES high-density winds - visible (BUFR via GTS)
18	GOES high-density winds - water vapor sounder (BUFR via GTS)
19	GOES high-density winds - infrared (short-wave) (BUFR)
20	NESDIS GOES Satellite Cloud Product (SCP)
21	India low-density winds - infrared (long-wave) (SATOB)
22	India low-density winds - visible (SATOB)
23	India low-density winds - water vapor imager (SATOB)
24	India high-density winds - infrared (long-wave) (BUFR)
25	India high-density winds - visible (BUFR)
26	India high-density winds - water vapor imager (BUFR)
27-40	Reserved
41	Japan low-density winds - infrared (long-wave) (SATOB)
42	Japan low-density winds - visible (SATOB)
43	Japan low-density winds - water vapor imager (SATOB)
44	Japan high-density winds - infrared (long-wave) (BUFR)
45	Japan high-density winds - visible (BUFR)
46	Japan high-density winds - water vapor imager (BUFR)
47	Japan high-density winds - infrared (long-wave) (BUFR)
48	Japan high-density winds - visible (BUFR)
49	Japan high-density winds - water vapor imager (BUFR)
50	GMS high-density winds - infrared (long-wave) (BUFR)
51	GMS high-density winds - water vapor imager (BUFR)
52	GOES high-density winds - infrared (long-wave) (BUFR)
53	GOES high-density winds - water vapor imager deep-layer (BUFR)
54	GOES high-density winds - visible (BUFR)
55	GOES high-density winds - water vapor imager cloud-top (BUFR)
56	GOES high-density winds - infrared (short-wave) (BUFR)
57-60	Reserved
61	Europe low-density winds - infrared (long-wave) (SATOB)
62	Europe low-density winds - visible (SATOB)
63	Europe low-density winds - water vapor imager (SATOB)
64	Europe high-density winds - infrared (long-wave) (BUFR)
65	Europe high-density winds - visible (BUFR)
66	Europe high-density winds - water vapor imager (BUFR)
67	Europe high-density winds - infrared (long-wave) (BUFR)
68	Europe high-density winds - visible (BUFR)
69	Europe high-density winds - water vapor imager (BUFR)
70	MODIS AQUA/TERRA winds - infrared (long-wave) (BUFR)
71	MODIS AQUA/TERRA winds - water vapor imager (BUFR)
72	SSEC/WISC LEO-GEO winds
73-79	Reserved
80	METOP AVHRR winds - infrared (long-wave) (BUFR)
81	METOP AVHRR winds - infrared (long-wave) (BUFR)
82-89	Reserved
90	NPP VIIRS winds - infrared (long-wave) (BUFR)
91	NPP VIIRS winds - infrared (long-wave) (BUFR)
92-98	Reserved
99	CIMSS tropical cyclone winds

When the value of
0-55-020 - TABLAT (Table A data type)

= 6 (Radar data)

Code figure	Meaning
0	Reserved
1	NeXRaD level 3 radial wind superob
2	NeXRaD level 2.5 radial wind superob
3-9	Reserved
10	NeXRaD level 2 radial wind (00z)
11	NeXRaD level 2 radial wind (01z)
12	NeXRaD level 2 radial wind (02z)
13	NeXRaD level 2 radial wind (03z)
14	NeXRaD level 2 radial wind (04z)
15	NeXRaD level 2 radial wind (05z)
16	NeXRaD level 2 radial wind (06z)
17	NeXRaD level 2 radial wind (07z)
18	NeXRaD level 2 radial wind (08z)
19	NeXRaD level 2 radial wind (09z)
20	NeXRaD level 2 radial wind (10z)
21	NeXRaD level 2 radial wind (11z)
22	NeXRaD level 2 radial wind (12z)
23	NeXRaD level 2 radial wind (13z)
24	NeXRaD level 2 radial wind (14z)
25	NeXRaD level 2 radial wind (15z)
26	NeXRaD level 2 radial wind (16z)
27	NeXRaD level 2 radial wind (17z)
28	NeXRaD level 2 radial wind (18z)
29	NeXRaD level 2 radial wind (19z)
30	NeXRaD level 2 radial wind (20z)
31	NeXRaD level 2 radial wind (21z)
32	NeXRaD level 2 radial wind (22z)
33	NeXRaD level 2 radial wind (23z)
34-39	Reserved
40	NeXRaD level 2 reflectivity (00z)
41	NeXRaD level 2 reflectivity (01z)
42	NeXRaD level 2 reflectivity (02z)
43	NeXRaD level 2 reflectivity (03z)
44	NeXRaD level 2 reflectivity (04z)
45	NeXRaD level 2 reflectivity (05z)
46	NeXRaD level 2 reflectivity (06z)
47	NeXRaD level 2 reflectivity (07z)
48	NeXRaD level 2 reflectivity (08z)
49	NeXRaD level 2 reflectivity (09z)
50	NeXRaD level 2 reflectivity (10z)
51	NeXRaD level 2 reflectivity (11z)
52	NeXRaD level 2 reflectivity (12z)
53	NeXRaD level 2 reflectivity (13z)
54	NeXRaD level 2 reflectivity (14z)
55	NeXRaD level 2 reflectivity (15z)
56	NeXRaD level 2 reflectivity (16z)
57	NeXRaD level 2 reflectivity (17z)
58	NeXRaD level 2 reflectivity (18z)
59	NeXRaD level 2 reflectivity (19z)
60	NeXRaD level 2 reflectivity (20z)
61	NeXRaD level 2 reflectivity (21z)
62	NeXRaD level 2 reflectivity (22z)
63	NeXRaD level 2 reflectivity (23z)
64-69	Reserved
70	Aircraft tail doppler radial wind
71-79	Reserved
80	Canada reflectivity (00z)
81	Canada reflectivity (01z)
82	Canada reflectivity (02z)
83	Canada reflectivity (03z)
84	Canada reflectivity (04z)
85	Canada reflectivity (05z)
86	Canada reflectivity (06z)
87	Canada reflectivity (07z)
88	Canada reflectivity (08z)
89	Canada reflectivity (09z)
90	Canada reflectivity (10z)
91	Canada reflectivity (11z)
92	Canada reflectivity (12z)
93	Canada reflectivity (13z)
94	Canada reflectivity (14z)
95	Canada reflectivity (15z)
96	Canada reflectivity (16z)
97	Canada reflectivity (17z)
98	Canada reflectivity (18z)
99	Canada reflectivity (19z)
100	Canada reflectivity (20z)
101	Canada reflectivity (21z)
102	Canada reflectivity (22z)
103	Canada reflectivity (23z)
104-109	Reserved
110	Canada radial wind (00z)
111	Canada radial wind (01z)
112	Canada radial wind (02z)
113	Canada radial wind (03z)
114	Canada radial wind (04z)
115	Canada radial wind (05z)
116	Canada radial wind (06z)
117	Canada radial wind (07z)
118	Canada radial wind (08z)
119	Canada radial wind (09z)
120	Canada radial wind (10z)
121	Canada radial wind (11z)
122	Canada radial wind (12z)
123	Canada radial wind (13z)
124	Canada radial wind (14z)
125	Canada radial wind (l5z)
126	Canada radial wind (16z)
127	Canada radial wind (17z)
128	Canada radial wind (18z)
129	Canada radial wind (19z)
130	Canada radial wind (20z)
131	Canada radial wind (21z)
132	Canada radial wind (22z)
133	Canada radial wind (23z)

When the value of
0-55-020 - TABLAT (Table A data type)

= 7 (Synoptic features)

Code figure	Meaning
0	Tropical storm
1	Vaisala lightning (NLDN short-range)
2	Vaisala lightning (LLDN long-range)
3	Earth Networks lightning
4-20	Reserved
21	NeXRaD level 2 boundary layer heights

When the value of
0-55-020 - TABLAT (Table A data type)

= 8 (Physical/chemical constituents)

Code figure	Meaning
0-9	Reserved
10	ATOVS SBUV-2 ozone
11	ATOVS SBUV-2 ozone
12	Global ozone monitoring experiment (GOME)
13	Aura ozone monitoring instrument (OMI)
14	NPP OMPS ozone - nadir profile
15	Aura ozone microwave limb sounder (MLS)
16	NPP OMPS ozone - total column
17	NPP OMPS ozone - nadir profile
18	NPP OMPS ozone - total column
19	NPP OMPS ozone - limb profile
20	AIRNOW ozone - 1-hr backward averaged, daily ingest
21	AIRNOW ozone - 1-hr backward averaged, daily ingest
22	AIRNOW ozone - 8-hr backward averaged, daily ingest
23	AIRNOW ozone - 1-hr backward averaged, hourly ingest
24-30	Reserved
31	AIRNOW particulate matter - 1-hr backward averaged, daily ingest
32	AIRNOW particulate matter - 1-hr backward averaged, hourly ingest
33-40	Reserved
41	MODIS aerosol optical depth
42	NPP aerosol optical depth
43-44	Reserved
45	AERONET aerosol optical depths and thicknesses

When the value of
0-55-020 - TABLAT (Table A data type)

= 12 (Surface data (satellite))

Code figure	Meaning
0	Reserved
1	DMSP SSM/I brightness temperatures
2	DMSP SSM/I derived products
3	GPS integrated precipitable water
4	GNSS ground-based
5	ERS SAR
6-7	Reserved
8	ERS scatterometer
9	ERS radar altimeter
10	NAVOCEANO POES - low-resolution sea-surface temperatures
11	NESDIS POES - high-resolution sea-surface temperatures, brightness temperatures and albedo
12	NAVOCEANO POES - high-resolution sea-surface temperatures, brightness temperatures and albedo
13	NASA TRMM microwave imager
14-16	Reserved
17	NAVOCEANO POES - sea-surface temperatures
18	NESDIS POES - sea-surface temperatures
19-21	Reserved
22	NESDIS GOES - sea-surface temperatures
23	S-NPP/NOAA-20 VIIRS - sea-surface temperatures (clear sky without land)
24	S-NPP/NOAA-20 VIIRS - sea-surface temperatures (probably clear sky without land)
25	S-NPP/NOAA-20 VIIRS - sea-surface temperatures (everything but clear sky without land and probably clear sky without land)
26-30	Reserved
31	AQUA AMSR-E ocean surface products - level 2
32-33	Reserved
34	AQUA AMSR-E ocean surface products - MISST
35-102	Reserved
103	DMSP SSM/I neural net 3 products
104-121	Reserved
122	METOP 50-km ASCAT scatterometer
123	METOP 25-km ASCAT scatterometer
124-136	Reserved
137	Quickscat scatterometer
138	WindSat scatterometer (FNMOC)
139	WindSat scatterometer (NESDIS)
140-149	Reserved
150	NASA Langley - GOES 1x1 FOV cloud
151-159	Reserved
160	University of Wisconsin GOES imager-effective cloud
161-221	Reserved
222	GCOM-W/Advanced Microwave Scanning Radiometer 2 (AMSR2) sea surface temperatures
223-254	Reserved
255	OCEANSAT 50-km OSCAT scatterometer

When the value of
0-55-020 - TABLAT (Table A data type)

= 21 (Radiances (satellite))

Code figure	Meaning
0-20	Reserved
21	NOAA RTOVS brightness temperatures - HIRS-2
22	NOAA RTOVS brightness temperatures - MSU
23	NOAA ATOVS brightness temperatures - AMSU-A
24	NOAA ATOVS brightness temperatures - AMSU-B
25	NOAA ATOVS brightness temperatures - HIRS-3
26	Reserved
27	NOAA ATOVS brightness temperatures - MHS
28	NOAA ATOVS brightness temperatures - MHS
29-32	Reserved
33	RARS ATOVS brightness temperatures - AMSU-A
34	RARS ATOVS brightness temperatures - AMSU-B
35	RARS ATOVS brightness temperatures - HIRS-3
36	RARS ATOVS brightness temperatures - MHS
37	RARS ATOVS radiances - CrIS
38	RARS ATOVS brightness temperatures - ATMS
39	RARS ATOVS radiances - IASI
40	Reserved
41	NESDIS GOES imager brightness temperatures
42	SEVIRI all-sky radiances
43	SEVIRI clear-sky radiances
44	Himawari-8 clear-sky radiances
45	GOES-16 all-sky radiances
46	GOES-16 clear-sky radiances
47-50	Reserved
51	NOAA-17 and METOP-2 AVHRR brightness temperatures (clear and over ocean)
52	NOAA-17 and METOP-2 AVHRR brightness temperatures (cloudy or over land)
53	NOAA-18 AVHRR brightness temperatures (clear and over ocean)
54	NOAA-18 AVHRR brightness temperatures (cloudy or over land)
55-99	Reserved
100	MTG IRS radiances from principal components
101-122	Reserved
123	Antenna temperatures - AMSU-A
124-200	Reserved
201	DMSP SSMI/S brightness temperatures
202	NPP CrIS radiances
203	NPP ATMS brightness temperatures
204	NPP VIIRS radiances
205	CrIS full spectral radiances (2211 channels)
206	CrIS full spectral radiances (431 channels)
207-211	Reserved
212	CrIS radiances (direct broadcast)
213	ATMS brightness temperatures (direct broadcast)
214-238	Reserved
239	IASI radiances (direct broadcast)
240	Reserved
241	IASI radiances
242	Megha-Tropiques SAPHIR L1A2 brightness temperatures
243-248	Reserved
249	AQUA/AIRS AMSU-A brightness temperatures - every field-of-view
250	AQUA/AIRS AMSU-A brightness temperatures - central field-of-view
251-253	Reserved
254	AQUA/AMSR-E brightness temperatures
255	AQUA/AIRS AMSU-A brightness temperatures - warmest field-of-view

When the value of
0-55-020 - TABLAT (Table A data type)

= 31 (Oceanographic data)

Code figure	Meaning
0	Reserved
1	BATHY
2	TESAC
3	TRACKOB
4	Airborne Expendable Bathythermograph (AXBT)
5	Subsurface float profiles (BUFR)
6	XBT/XCTD (TESAC) profiles (BUFR)
7	Along track (TRACKOB) observations (BUFR)
8	Marine mammal profiles
9-10	Reserved
11	NLSA ERS-2 sea-surface height anomaly (high-resolution regional)
12	NLSA TOPEX sea-surface height anomaly (high-resolution regional)
13	NLSA TOPEX sea-surface height anomaly (high-resolution regional)
14	NLSA GFO sea-surface height anomaly (high-resolution regional)
15-100	Reserved
101	NAVOCEANO ERS-2 sea-surface height anomaly (high-resolution global)
102	NAVOCEANO GFO sea-surface height anomaly (high-resolution global)
103	NAVOCEANO TOPEX sea-surface height anomaly (high-resolution global)
104	NAVOCEANO JASON-1 sea-surface height anomaly (high-resolution global)
105	NAVOCEANO GFO altimeter wind/wave (IGDR)
106	CNES JASON-1 altimeter wind/wave (IGDR)
107	NAVOCEANO GFO altimeter wind/wave (fast delivery)
108	NAVOCEANO ENVISAT altimeter wind/wave (fast delivery)
109	NAVOCEANO ENVISAT sea-surface height anomaly (high-resolution global)
110	NAVOCEANO JASON-1 altimeter wind/wave (fast delivery)
111	CNES JASON-2 altimeter wind/wave (OGDR)
112	NAVOCEANO JASON-2 sea-surface height anomaly (high-resolution global) (OGDR)
113	NAVOCEANO JASON-2 sea-surface height anomaly (high-resolution global) (IGDR)
114	NAVOCEANO JASON-2 altimeter wind/wave (fast delivery)
115	CNES JASON-2 altimeter wind/wave (OGDR)
116	SSALTO/DUACS ENVISAT sea-surface height anomaly (high-resolution global)
117	NAVOCEANO CRYOSAT-2 sea-surface height anomaly (high-resolution global) (IGDR)
118	NAVOCEANO SARAL sea-surface height anomaly (high-resolution global) (OGDR)
119	NAVOCEANO SARAL sea-surface height anomaly (high-resolution global) (IGDR)
120	NAVOCEANO CRYOSAT-2 altimeter wind/wave (fast delivery)
121	NAVOCEANO SARAL altimeter wind/wave (fast delivery)
122	CNES SARAL altimeter wind/wave (OGDR)
123	CNES CRYOSAT-2 altimeter wind/wave (OGDR)
124	CNES JASON-3 altimeter wind/wave (OGDR)
125	NAVOCEANO JASON-3 sea-surface height anomaly (high-resolution global) (OGDR)
126	NAVOCEANO JASON-3 sea-surface height anomaly (high-resolution global) (IGDR)
127	NAVOCEANO JASON-3 altimeter wind/wave (fast delivery)
128	NAVOCEANO Sentinel 3A sea-surface height anomaly (high-resolution global) (NRT)
129	NAVOCEANO Sentinel 3A sea-surface height anomaly (high-resolution global) (STC)
130	NAVOCEANO Sentinel 3A altimeter wind/wave (fast delivery)
131	NAVOCEANO Sentinel 3B sea-surface height anomaly (high-resolution global) (NRT)
132	NAVOCEANO Sentinel 3B sea-surface height anomaly (high-resolution global) (STC)
133	NAVOCEANO Sentinel 3B altimeter wind/wave (fast delivery)
134	CNES Sentinel 3A altimeter wind/wave (OGDR)
135	CNES Sentinel 3B altimeter wind/wave (OGDR)
136	NAVOCEANO CRYOSAT-2 sea-surface height anomaly (high-resolution global) (OGDR)
137	NAVOCEANO Sentinel 6A sea-surface height anomaly (high-resolution global) (NRT)
138	NAVOCEANO Sentinel 6A sea-surface height anomaly (high-resolution global) (STC)
139	NAVOCEANO Sentinel 6A altimeter wind/wave (fast delivery)

When the value of
0-55-020 - TABLAT (Table A data type)

= 255 (Other category)

Code figure	Meaning
0	Reserved
1	Mesonet - Denver Urban Drainage (MADIS)
2	Mesonet - RAWS National Interagency Fire Center (MADIS)
3	Mesonet - MesoWest (MADIS)
4	Mesonet - APRS WeatherNet (MADIS)
5	Mesonet - Kansas Department of Transportation (MADIS)
6	Mesonet - Florida (MADIS)
7	Mesonet - Iowa Department of Transportation (MADIS)
8	Mesonet - Minnesota Department of Transportation (MADIS)
9	Mesonet - Anything Weather (MADIS)
10	Mesonet - National Ocean Service PORTS (MADIS)
11	Mesonet - Aberdeen Proving Grounds (MADIS)
12	Mesonet - Weather for You (MADIS)
13	Mesonet - NWS Cooperative Observers (MADIS)
14	Mesonet - NWS HADS (MADIS)
15	Mesonet - AWS (MADIS)
16	Mesonet - Iowa Environmental (MADIS)
17	Mesonet - Oklahoma (MADIS)
18	Mesonet - Colorado Department of Transportation (MADIS)
19	Mesonet - West Texas (MADIS)
20	Mesonet - Wisconsin Department of Transportation (MADIS)
21	Mesonet - LSU-JSU (MADIS)
22	Mesonet - Colorado E-470 (MADIS)
23	Mesonet - DC Net (MADIS)
24	Mesonet - Indiana Department of Transportation (MADIS)
25	Mesonet - Florida Department of Transportation (MADIS)
26	Mesonet - Alaska Department of Transportation (MADIS)
27	Mesonet - Georgia Department of Transportation (MADIS)
28	Mesonet - Virginia Department of Transportation (MADIS)
29	Mesonet - Missouri Commercial Agriculture Weather Net (MADIS)
30	Mesonet - Miscellaneous (MADIS)
31	Urbanet - Miscellaneous (MADIS)
32	Urbanet - University of South Alabama (MADIS)
33	HF-METAR - one-minute ASOS
34-100	Reserved
101	Cooperative observer surface - New England Pilot Project (NEPP) and Historical Climatology Network (HCN) (MADIS)
102	Cooperative observer surface - NWS Cooperative Observers (SHEF)
103-110	Reserved
111	Mesonet - Climate Reference Network (MADIS)
112-130	Reserved
131	Hydrological surface - Denver Urban Drainage (MADIS)
132-159	Reserved
160	Hydrological surface - Miscellaneous (MADIS)
161	Snow (MADIS)