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 42 IMPLEMENTED ON June 28, 2024

LINKS TO OTHER VERSION 42 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 42 43

(This webpage was generated: 2024/11/20 18:37:14)

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
77-79	Reserved
80	AWS1
81-119	Reserved
120	ADEOS
121	ADEOS II
122	GCOM-W1
123-139	Reserved
140	GOSAT
141	GOSAT-2
142-149	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
274-279	Reserved
280	SWOT
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	Alfred Wegener Institute (AWI)
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	Greek Atomic Energy Commission (Greece)
301	United States Environmental Protection Agency (USA)
302	Australian Radiation Protection and Nuclear Safety (Australia)
303	Authority for Nuclear Safety and Radiation Protection (The Netherlands)
304	Autorite de Surete Nucleaire (France)
305	Bundesamt für Strahlenschutz (Germany)
306	National Commission for Nuclear Activities Control (Romania)
307	Consejo de Seguridad Nuclear (Spain)
308	Danish Emergency Management Agency (Denmark)
309	Norwegian Radiation Protection Agency (Norway)
310	Federal Agency for Nuclear Control (Belgium)
311	Institute of Radiation Protection and Dosimetry (Brazil)
312	National Inspectorate for Nuclear Safety and Radiation Protection (Italy)
313	Nuclear Regulatory Authority (Turkiye)
314	Nuclear Regulation Authority (Japan)
315	Nuclear Regulatory Agency (Bulgaria)
316	Ukrainian Radiation Protection Institute (Ukraine)
317	Health Canada Radio Protection Bureau (Canada)
318	Portuguese Society for Radiation Protection (Portugal)
319	Swedish Radiation Safety Authority (Sweden)
320	Radiation and Nuclear Safety Authority (Finland)
321	State Office for Nuclear Safety (Czechia)
322	Nuclear Regulation Authority (Slovakia)
323-65534	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	Alfred Wegener Institute (AWI)
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	Alfred Wegener Institute (AWI)
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	Greek Atomic Energy Commission (Greece)
301	United States Environmental Protection Agency (USA)
302	Australian Radiation Protection and Nuclear Safety (Australia)
303	Authority for Nuclear Safety and Radiation Protection (The Netherlands)
304	Autorite de Surete Nucleaire (France)
305	Bundesamt für Strahlenschutz (Germany)
306	National Commission for Nuclear Activities Control (Romania)
307	Consejo de Seguridad Nuclear (Spain)
308	Danish Emergency Management Agency (Denmark)
309	Norwegian Radiation Protection Agency (Norway)
310	Federal Agency for Nuclear Control (Belgium)
311	Institute of Radiation Protection and Dosimetry (Brazil)
312	National Inspectorate for Nuclear Safety and Radiation Protection (Italy)
313	Nuclear Regulatory Authority (Turkiye)
314	Nuclear Regulation Authority (Japan)
315	Nuclear Regulatory Agency (Bulgaria)
316	Ukrainian Radiation Protection Institute (Ukraine)
317	Health Canada Radio Protection Bureau (Canada)
318	Portuguese Society for Radiation Protection (Portugal)
319	Swedish Radiation Safety Authority (Sweden)
320	Radiation and Nuclear Safety Authority (Finland)
321	State Office for Nuclear Safety (Czechia)
322	Nuclear Regulation Authority (Slovakia)
323-65534	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	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	Maximum Likelihood Estimation – High horizontal resolution (MLEsub)
7-254	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 (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	Beijing GTH1 (China)
205	Nanjing GTH2 (China)
206	Tianjin GTH3 (China)
207	Aerospace Newsky Technology GTH4 (China)
208	Taiyuan GTH5 (China)
209	Shanghai GTH6 (China)
210-254	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	ESA Radiometer MWR (EPS Sterna Radiometer)
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	NASA Radiometer MWR (Microwave Radiometer)
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	NASA Spectrometer TEMPO (Tropospheric Emissions Monitoring of Pollution)
436-449	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	JAXA Spectrometer TANSO-FTS2 (Thermal and Near infrared Sensor for carbon Observations - Fourier Transform Spectrometer 2)
522-525	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 CrIS/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	Pseudo radionuclide
30300	Silver 112
30301	Silver 115
30302	Barium 139
30303	Barium 141
30304	Barium 142
30305	Bromine 84
30306	Cadmium 115
30307	Cadmium 117
30308	Cadmium 117 metastable
30309	Cerium 145
30310	Cerium 146
30311	Cobalt 58 metastable
30312	Caesium 138
30313	Caesium 139
30314	Iodine 130 aerosol
30315	Iodine 130 elementary gaseous
30316	Iodine 130 organic bounded
30317	Iodine 132 metastable
30318	Iodine 134 metastable
30319	Indium 115 metastable
30320	Indium 117 metastable
30321	Krypton 83 metastable
30322	Lanthanum 142
30323	Lanthanum 143
30324	Manganese 56
30325	Molybdenum 101
30326	Molybdenum 102
30327	Neodymium 149
30328	Neodymium 151
30329	Palladium 109
30330	Palladium 112
30331	Praseodymium 145
30332	Praseodymium 146
30333	Praseodymium 147
30334	Rubidium 89
30335	Rubidium 90
30336	Rubidium 90 metastable
30337	Rhodium 105 metastable
30338	Rhodium 107
30339	Antimony 128
30340	Antimony 128 metastable
30341	Antimony 129 metastable
30342	Antimony 130
30343	Antimony 130 metastable
30344	Antimony 131
30345	Antimony 132
30346	Antimony 132 metastable
30347	Antimony 133
30348	Selenium 83
30349	Tin 127
30350	Tin 127 metastable
30351	Tin 128
30352	Tin 129 metastable
30353	Tin 130
30354	Strontium 93
30355	Technetium 101
30356	Technetium 102
30357	Technetium 104
30358	Technetium 105
30359	Tellurium 133
30360	Tellurium 133 metastable
30361	Tellurium 134
30362	Yttrium 93 metastable
30363	Yttrium 94
30364	Yttrium 95
30365	Zirconium 96
30366-39999	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	Frozen soil
13-14	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