0 02 001

Type of station

Code figure
0	Automatic station
1	Manned station
2	Hybrid: Both manned and automatic
3	Missing value

0 02 002

Type of instrumentation for wind measurement

Bit No.	Type of Instrumentation and original units for wind measurement (measured in m s^-1 unless otherwise indicated)
1	Certified instruments
2	Originally measured in knots
3	Originally measured in km h^-1
All 4	Missing value

0 02 003

Type of measuring equipment used

Code figure
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
10-13	Reserved
14	Pressure instrument associated with wind measuring equipment but pressure element failed during ascent
15	Missing value

0 02 004

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

Code figure	Instrumentation or crop type	Type of data
0	USA open pan evaporimeter (without cover)	Evaporation
1	USA open pan evaporimeter (mesh covered)
2	GGI-3000 evaporimeter (sunken)
3	20 m²tank
4	Others
5	Rice	Evapotranspiration
6	Wheat
7	Maize
8	Sorghum
9	Other crops
10-14	Reserved
15	Missing value

0 02 011

Radiosonde type

(See common code table C-2 in part C/c.)

0 02 012

Radiosonde computational method

(To be developed)

0 02 013

Solar and Infrared radiation correction

Code figure
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
8-14	Reserved
15	Missing value

0 02 014

Tracking technique/status of system used

(See common Code table C-7 in Part C/c.)

0 02 015

Radiosonde completeness

Code figure
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

Radiosonde configuration

Bit No.
1	Train regulator
2	Light unit
3	Parachute
4	Rooftop release
All 5	Missing value

0 02 019

Satellite instruments

(See common Code table C-8 in Part C/c.)

0 02 020

Satellite classification

Code figure
0	Nimbus
1	VTPR
2	Tiros 1 (Tiros, NOAA-6 to NOAA-13)
3	Tiros 2 (NOAA-14 onwards)
10	EOS
20	GPM-core
31	DMSP
61	EUMETSAT Polar System (EPS)
91	ERS
92	Sentinel-3
121	ADEOS
241	GOES
261	JASON
271	GMS
272	MTSAT
273	HIMAWARI
301	INSAT
331	METEOSAT Operational Programme (MOP)
332	METEOSAT Transitional Programme (MTP)
333	METEOSAT Second Generation Programme (MSG)
351	GOMS
380	FY-1
381	FY-2
382	FY-3
383-400	Reserved
401	GPS
402	GLONASS
403	GALILEO
404-510	Reserved
511	Missing value

0 02 021

Satellite instrument data used in processing

Bit No
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

Satellite data-processing technique used

Bit flags denoting the elements Included in processing sounding data.

Bit No.
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

Notes:

(1) Clear path means the sounding has been generated from clear radiances derived from actual clear spot measurements. Tropospheric and stratospheric HIRS data, as well as MSU and SSU data, have been used.

(2) Partly cloudy path means the sounding has been generated from clear radiances which have been calculated from partly cloudy spots. Tropospheric and stratospheric HIRS data, as well as MSU and SSU data, have been used.

(3) Cloudy path means the sounding has been generated only from stratospheric HIRS data, MSU data and SSU data. Tropospheric HIRS data have not been used because of cloudy conditions.

0 02 023

Satellite derived wind computation method

Code figure
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

Integrated mean humidity computational method

Code figure
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

Satellite channel(s) used in computation

Bit flags denoting the Instrument and/or channels used in obtaining various physical parameters. If, In any grouping of parameters, all bits = 0, then no retrieval was made for that parameter or set of parameters.

Bit No.	Instrument (channels)
1	Reserved
Group 1 - Layer precipitable water for the layers: surface to 700 hPa, 700 to 500 hPa, and 500 to 300 hPa
2	HIRS
3	MSU
4-5	Reserved
Group 2 - Tropopause temperature and pressure
6	HIRS
7	MSU
8-9	Reserved
Group 3 - Total ozone
10	HIRS (1,2,3,8,9,16,17)
11	HIRS (1, 2, 3, 9, 17)
12	MSU
13-14	Reserved
Group 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
15	HIRS
16	HIRS*
17	MSU
18	SKINTK (ocean only)
19-20	Reserved
Group 5 - Channel combinations used to obtain 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, 1 to 0.4 hPa
21	HIRS*
22	SSU
23	MSU (3,4)
24	Reserved
All 25	Missing value

Note: HIRS* is equivalent to: HIRS channel:

1 ( 669 cm^-1)

2 ( 679 cm^-1)

3 ( 690 cm^-1)

4 (2358 cm^-1)

0 02 030

Method of current measurement

Code figure
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

^* Value deprecated. Code figure 6 should be used instead.

0 02 031

Duration and time of current measurement

Code figure
0	Reserved
1	Instantaneous
2	Averaged over 3 minutes or less	between H-1 and H
3	Averaged over more than 3 minutes, but 6 at the most
4	Averaged over more than 6 minutes, but 12 at the most
5	Instantaneous	between H-2 and H-1
6	Averaged over 3 minutes or less
7	Averaged over more than 3 minutes, but 6 at the most
8	Averaged over more than 6 minutes, but 12 at the most
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

Notes:

(1) Code figures 1-9: Duration and time of current measurement (vector or Doppler current profiling method).

(2) Code figures 11-19: Period of current measurement (drift method).

(3) H = Time of observation.

0 02 032

Indicator for digitization

Code figure
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

Method of salinity/depth measurement

Code figure
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

Drogue type

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

0 02 036

Buoy type

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

0 02 037

Method of tidal observation

Code figure
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

Method of water temperature and/or salinity measurement

Code figure
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

Method of wet bulb temperature measurement

Code figure
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

Method of removing code velocity and motion of platform from current

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

0 02 041

Method for estimating reports related to synoptic features

Code figure
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 for future use
63	Missing value

0 02 044

Indicator for method of calculation of spectral wave data

Code figure
0	Reserved for future use
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

Indicator for type of platform

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

0 02 046

Wave measurement instrumentation

Code figure
0	Reserved for future use
1	Heave sensor
2	Slope sensor
3-14	Reserved
15	Missing value

0 02 048

Satellite sensor indicator

Code figure
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
13-14	Reserved
15	Missing value

0 02 049

Geostationary satellite data-processing technique used

Bit No.
1	Processing technique not defined
2	Simultaneous physical retrieval
3	Clear sounding
4	Cloudy sounding
5-7	Reserved for future use
All 8	Missing value

Notes:

1. Clear sounding indicates the sounding has been generated from a set of clear radiances using all available sounder radiances.

2. Cloudy sounding indicates that sufficient clear radiances could not be identified in the sounding area. The sounding is calculated from the cloud top (cloud pressure greater than or equal to 70 hPa) upwards.

0 02 050

Geostationary sounder satellite channels used

Bit No.	Channel	Central wavelength (micrometers)
1	1	14.71
2	2	14.37
3	3	14.06
4	4	13.64
5	5	13.37
6	6	12.66
7	7	12.02
8	8	11.03
9	9	9.71
10	10	7.43
11	11	7.02
12	12	6.51
13	13	4.57
14	14	4.52
15	15	4.45
16	16	4.13
17	17	3.98
18	18	3.74
19	19	0.969
All 20	Missing value

Note: Beginning with the first bit position (high order bit), if the bit position is set to one, then the channel is used. If the bit position is set to zero, then the channel is not used.

0 02 051

Indicator to specify observing method for extreme temperatures

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

0 02 052

Geostationary imager satellite channels used

Bit No.	Channel	Central wavelength (micrometer)
1	1	0.55 - 0.75
2	2	3.9
3	3	6.7
4	4	10.7
5	5	12.0
All 6	Missing value

Note: Beginning with the first bit position (high order bit), if the bit position is set to one, then the channel is used. If the bit position is set to zero, then the channel is not used.

0 02 053

GOES-I/M brightness temperature characteristics

Code figure
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

GOES-I/M soundings parameter characteristics

Code figure
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 NMC analysis information
4	Parameter derived using radiosonde information
5-14	Reserved
15	Missing value

0 02 055

Geostationary soundings statistical parameters

Code figure
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

Geostationary soundings accuracy statistics

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

0 02 057

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

Code figure
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 o current time)
5	Climatology
6-14	Reserved
15	Missing value

0 02 058

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

Code figure
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

Origin of analysis information for GOES-I/M soundings

Code figure
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

Origin of surface information for GOES-I/M soundings

Code figure
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

Aiircraft navigational system

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

0 02 062

Type of aircraft data relay system

Code figure
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

Aircraft roll angle angle quality

Code figure
0	Good
1	Bad
2	Reserved
3	Missing value

Note: Bad is currently defined as a roll angle >5 degrees from vertical.

0 02 066

Radiosonde ground receiving system

Code figure
0	TRS 2000
1	IMS 1500C
2-61	Reserved
62	Other
63	Missing value

0 02 070

Original specification of latitude/longitude

Code figure
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

Balloon manufacturer

Code figure
0	Kaysam
1	Totex
2	KKS
3-61	Reserved
62	Other
63	Missing value

0 02 081

Type of balloon

Code figure
0	GP26
1	GP28
2	GP30
3	HM26
4	HM28
5	HM30
6	SV16
7-29	Reserved
30	Other
31	Missing value

0 02 083

Type of balloon shelter

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

0 02 084

Type of gas used in balloon

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

0 02 095

Type of pressure sensor

Code figure
0	Capacitance aneroid
1	Derived from GPS
2	Resistive strain gauge
3-29	Reserved
30	Other
31	Missing value

0 02 096

Type of temperature sensor

Code figure
0	Rod thermistor
1	Bead thermistor
2	Capacitance bead
3-29	Reserved
30	Other
31	Missing value

0 02 097

Type of humidity sensor

Code figure
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
7-29	Reserved
30	Other
31	Missing value

0 02 101

Type of antenna

Code figure
0	Center front-fed paraboloid
1	Offset front-fed paraboloid
2	Center 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

Radome

Bit No.
1	Radar antenna is protected by a radome
All 2	Missing value

0 02 104

Antenna polarization

Code figure
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

Type of surface observing equipment

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

0 02 119

RA-2 instrument operations

Code figure
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

Sensitivity time control (STC)

Bit No.
1	STC operational
All 2	Missing values

0 02 143

Ozone instrument type

Code figure
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 for future use
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

Light source type of Brewer spectrophotometer

Code figure
0	Direct sun
1	Direct sun, attenuator #1
2	Direct sun, attenuator #2
3	Focussed moon
4	Focussed sun
5	Focussed sun corrected with adjacent sky measurements
6	Zenith sky
7-14	Reserved
15	Missing value

Note: Entries 1 and 2 should not be used.

0 02 145

Wave length setting for Dobson instruments

Code figure
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

Source condition for Dobson instruments

Code figure
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 02 148

Data collection and/or location system

Code figure
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

Type of data buoy

Code figure
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 float
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	PROVAR
14	SOLO
15	APEX
16	Unspecified moored buoy
17	Nomad
18	3-meter discus
19	10-12-meter 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 meteorlogical
36	Mooring multidisciplinary (OceanSITES)
37	Mooring tide gauge or tsunami buoy
38-62	Reserved
63	Missing value

0 02 150

TOVS/ATOVS/AVHRR instrumentation channel number

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

0 02 151

Radiometer identifier

Code figure
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

Satellite instrument data used in processing

Bit No.
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

RA - 2 instruments

Bit No.
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

Notes: PTR    = Pulse target response
                HPA   = High power amplifier
                RFSS = Radio frequency sub-system
                RED   = Redundancy

0 02 159

MWR instruments





Bit No.


 




1


Temperature inconsistency






2


Data missing






3


Redundancy channel






4


Power bus protection






5


Overvoltage/overload protection






6-7


Reserved






All 8


Missing
value




Note:   MWR   =  Microwave radiometer

0 02 163

Height assignment method

Code figure
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

Tracer correlation method

Code figure
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 02 166

Radiance type

Code figure
0	Type not defined
1	Automated statistical regression
2	Clear path
3	Partly cloudy path
4	Cloudy path
5	Apodized radiance
6	Unapodized radiance
7	Reconstructed radiance
8	Cloud cleared radiance
9-14	Reserved
15	Missing value

0 02 167

Radiance computational method

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

0 02 169

Anemometer type

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

0 02 172

Product type for retrieved atmospheric gases

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

0 02 175

Method of precipitation measurement

Code figure
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

Method of state of ground measurement

Code figure
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

Method of snow depth measurement

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

0 02 178

Method of liquid water content measurement of precipitation

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

0 02 179

Type of sky condition algorithm

Code figure
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

Main present weather detecting system

Code figure
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

Supplementary present weather sensor

Bit No.
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

Visibility measurement system

Code figure
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

Cloud detection system

Code figure
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

Type of lightning detection sensor

Code figure
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

Method of evaporation measurement

Code figure
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

Capability to detect precipitation phenomena

Bit No.
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 02 187

Capability to detect other weather phenomena

Bit No.
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

Capability to detect obscuration

Bit No.
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

Capability to discriminate lightning strikes

Bit No.
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

_________________

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

Code figure
0-036000	Reserved
036001	Australia, Bureau of Meteorology (BOM)
036002	Australia, Joint Australian Facility for Ocean Observing Systems (JAFOOS)
036003	Australia, the Commonwealth Scientific and Industrial Research Organisation (CSIRO)
036004-124000	Reserved
124001	Canada, Marine Environmental Data Service (MEDS)
124002	Canada, Institute of Ocean Sciences (IOS)
124003-156000	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	Korea Rep., Seoul National University
410002	Korea Rep., Korea Ocean Research and Development Institute (KORDI)
410003	Korea Rep., 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)
554002-64300	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)
826003-840000	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

Code figure
0	LAF (Lagged-Average Forecasting)
1	Breeding
2	Singular vectors
3	Multiple analysis cycles
4-191	Reserved
192-254	Reserved for local use
255	Missing value

Code figure
0	Unperturbed high-resolution control forecast
1	Unperturbed low-resolution control forecast
2	Negatively perturbed forecast
3	Positively perturbed forecast
4-191	Reserved
192-254	Reserved for local use
255	Missing value

Bit No.
1	Temperature inconsistency
2	Data missing
3	Redundancy channel
4	Power bus protection
5	Overvoltage/overload protection
6-7	Reserved
All 8	Missing value