CLASS 25-35 WMO CODE/FLAG TABLES ASSOCIATED WITH BUFR TABLE B

 

(Version 16.0.0 – 05/04/2011)

 

Changes awaiting validation by the WMO are in red (last updated by the WMO 05/04/2011)

 

 

 


Notes:   In developing code tables associated with BUFR/CREX Table B to specify units of elements, the following principles should be applied:

 

(a)   Code tables specifying the units for an element which is defined, in the Manual on Codes, by a single symbolic letter shall be compatible with the relevant existing WMO code tables;

 

(b)   Code tables combining two or more existing WMO code tables to specify the units for an element which is defined, in the Manual on Codes, by a group of symbolic letters shall be compatible with the combined code figures of the relevant group of symbolic letters;

 

(c)   Code tables combining two or more existing WMO code tables to specify the units for an element which is defined, in the Manual on Codes, by different symbolic letters shall be compatible with the code figures of the relevant symbolic letters, with successive tens or hundreds values added, as different symbolic letters appropropriate;

 

(d)   Code tables and flag tables should only be used for reporting qualitative information. Quantitative information should be reported as observed using entries in Table B.  "Data description operators" from Table C should be applied when a "scale change" or "data width change" is required;

 

(e)  Reference to existing specification(s) and code table(s) in the Manual on Codes, with explanation of possible deviations, shall be given in an additional table annexed to the annexed  to the code tables associated with BUFR/CREX Table B.



 

 

 


 

 

 

 

 

 


0 25 004

 

Echo processing

 

Code

figure

 

0

Incoherent

1

Coherent (Doppler)

2

Reserved

3

Missing value


 

 

 

 

 

 

0 25 005

 

Echo integration

 

Code

figure

 

0

Logarithm - 2.5dB

1

Linear

2

Special

3

Missing value


 

 

 

 

 

 

0 25 006

 

Z to R conversion

 

Code

figure

 

0

ZH to R conversion

1

(ZH, ZDR) to (NO, DO) to R

2

(Z (Fl), Z (F2)) to attenuation to R

3-5

Reserved

6

Other

7

Missing value


 

 

 

 

 

 

0 25 009

 

Calibration method

 

Bit No.

 

1

None

2

Calibration target or signal

3

Against rain gauges

4

Against other Instruments (distrometer - attenuation)

All 4

Missing value


 

 

 

 

 

 

0 25 010

 

Clutter treatment

 

Code

figure

 

0

None

1

Map

2

Insertion of higher elevation data and map

3

Analysis of the fluctuating Logarithm signal (clutter detection)

4

Extraction of the fluctuating part of linear signal (clutter suppression)

5

Clutter suppression - Doppler

6

Multi-parameter analysis

7-14

Reserved

15

Missing value


 

 

 

 

 

 

0 25 011

 

Ground occultation correction (screening)

 

Code

figure

 

0

None

1

Map of correction factors

2

Interpolation (azimuth or elevation)

3

Missing value


 

 

 

 

 

 

0 25 012

 

Range attenuation correction

 

Code

figure

 

0

Hardware

1

Software

2

Hardware and software

3

Missing value


 

 

 

 

 

 

0 25 013

 

Bright-band correction

 

Bit No.

 

1

Brightband correction

all 2

Missing value


 

 

 

 

 

 

0 25 015

 

Radome attenuation correction

 

Bit No.

 

1

Radome Attenuation Correction

All 2

Missing value


 

 

 

 

 

 

0 25 017

 

Precipitation attenuation correction

 

Bit No.

 

1

Precipitation attenuation correction

All 2

Missing value


 

 

 

 

 

 

0 25 020

 

Mean-speed estimation

 

Code

figure

 

0

FFT (fast Fourier transform)

1

PP (pulse-pair processing)

2

VPC (vector-phase change)

3

Missing value


 

 

 

 

 

 

0 25 021

 

Wind computation enhancement

 

Bit No.

 

1

Simple average

2

Consensus average

3

Median check

4

Vertical consistency check

5

Other

6-7

Reserved

All 8

Missing value


 

 

 

 

 

 

0 25 030

 

Running mean sea-surface temperature usage

 

Code

figure

 

0

Running mean sea-surface temperature not used because usage criteria not met

1

Running mean sea-surface temperature not used because data not available

2

Running mean sea-surface temperature used as predictor

3

Missing value


 

 

 

 

 

 

0 25 032

 

NOAA wind profiler mode information

 

Code

figure

 

0

Reserved

1

Data from low mode

2

Data from high mode

3

Missing value


 

 

 

 

 

 

0 25 033

 

NOAA wind profiler submode information

 

Code

figure

 

0

Wind Profiler operating in Submode A

1

Wind Profiler operating in Submode B

2

Reserved

3

Missing value


 

 

 

 

 

 

0 25 034

 

NOAA wind profiler quality control test results

 

Bit No.

Meaning (1=true, 0=false)

1

Test A performed and failed

2

Test B performed and failed

3

Test results inconclusive

All 4

Missing value


 

 

 

 

 

 

0 25 036

 

Atmospherics location method

 

Code figure

 

0

Network of several direction-finders operating on the same individual atmospherics

1

Network of several arrival-time stations operating on the same individual atmospherics

2-5

Reserved

6

Single station range bearing technique

7-14

Reserved

15

Missing value


 

 

 

 

 

 

0 25 040

 

CO2 wind product derivation

 

Code

figure

 

0

Non-specific mode

1

First guess data

2

Cloud data

3

Average vector data

4

Primary data

5

Guess data

6

Vector data

7

Tracer data;this image

8

Tracer data to next image

9-14

Reserved

15

Missing value


 

 

 

 

 

 

0 25 041

 

Moving platform direction reporting method

 

Code

figure

 

0

Direction originally reported in true degrees

1

Direction originally reported using Code Table 0700, FM13

2

Reserved

3

Missing value

 

NOTE:  Where the original reporting method is as indicated by code figure 1, the following conversion is recommended to obtain a suitable data value corresponding to descriptor 0 01 012:

 

Reported value

Data value

0

0

1

45

2

90

3

135

4

180

5

225

6

270

7

315

8

360

9

511


 

 

 

 

 

 

0 25 042

 

Moving platform speed reporting method

 

Code

figure

 

0

Speed originally reported in metres per second

1

Speed originally reported using Code Table 4451, FM13

2

Reserved

3

Missing value

 

NOTE:  Where the original reporting method is as indicated by code figure 1, the following conversion is recommended to obtain a suitable data value corresponding to descriptor 0 01 013:

 

Reported value

Data value

0

0

1

1

2

4

3

7

4

9

5

12

6

14

7

17

8

19

9

21

/

1023


 

 

 

 

 

 

0 25 045

 

HIRS channel combination

 

Bit No.

 

1-20

Beginning with first bit position (high order bit), if bit position is set to 1, then channel is present, if bit position is set to 0, then channel is not present

All 21

Missing value


 

 

 

 

 

 

0 25 046

 

MSU channel combination

 

Bit No.

 

1-4

Beginning with first bit position (high order bit), if bit position is set to 1, then channel is present, if bit position is set to 0, then channel is not present

All 5

Missing value


 

 

 

 

 

 

0 25 047

 

SSU channel combination

 

Bit No.

 

1-3

Beginning with first bit position (high order bit); if bit position is set to 1, then channel is present; if bit position is set to 0, then channel is not present

All 4

Missing value


 

 

 

 

 

 

0 25 048

 

AMSU-A channel combination

 

Bit No.

 

1-15

Beginning with first bit position (high order bit), if bit position is set to 1, then channel is present, if bit position is set to 0, then channel is not present

All 16

Missing value


 

 

 

 

 

 

0 25 049

 

AMSU-B channel combination

 

Bit No.

 

1-5

Beginning with first bit position (high order bit), if bit position is set to 1, then channel is present, if bit position is set to 0, then channel is not present

All 6

Missing value


 

 

 

 

 

 

0 25 051

 

AVHRR channel combination

 

Bit No.

 

1-6

Beginning with first bit position (high order bit), if bit position is set to 1, then channel is present, if bit position is set to 0, then channel is not present

All 7

Missing value


 

 

 

 

 

 

0 25 053

 

Observation quality

 

Bit No.

 

1

Good

2

Redundant

3

Questionable

4

Bad

5

Experimental

6

Precipitating

7-11

Reserved

All 12

Missing value


 

 

 

 

 

0 25 069

Flight level pressure corrections

Bit No.

 

1

 Smoothed

2

 Baseline adjusted

3

 Normalized time interval

4

 Outlier checked

5

 Plausibility checked

6

 Consistency checked

7

 Interpolated

All 8

 Missing value

 

 

 

 

 

 

0 25 086

 

Depth correction indicator

 

Code
figure

 

0

Depths are not corrected

1

Depths are corrected

2

Reserved

3

Missing value


 

 

 

 

 

 

0 25 093

 

RASS computation correction

 

Bit No.

 

1

No correction

2

Vertical velocity correction

3-6

Reserved

7

All corrections

All 8

Missing value


 

 

 

 

 

 

0 25 095

 

Altimeter state flag

 

           

Bit No.

           

1

Altimeter operating (set to 0 if nominal, set to 1 if backup)

All 2

Missing value


 

 

 

 

 

0 25 096

 

Radiometer state flag

 

Bit No.

 

1

Mode indicator (0 if Mode 2, 1 if Mode 1)

2

Mode 1 Calibration sequence indicator (0 if normal data taking either Mode 1 or 2, 1 if Mode 1 Calibration sequence)

 

Bits 3 and 4 indicate active 23.8 GHz channel

3

Channel 2 (0 if on, 1 if off)

4

Channel 3 (0 if on, 1 if off)

All 5

Missing value


 

 

 

 

 

0 25 097

 

Three-dimensional error estimate of the navigator orbit

 


Code
figure

 

0

Ranges between 0 and 30 cm

1

Ranges between 30 and 60 cm

2

Ranges between 60 and 90 cm

3

Ranges between 90 and 120 cm

4

Ranges between 120 and 150 cm

5

Ranges between 150 and 180 cm

6

Ranges between 180 and 210 cm

7

Ranges between 210 and 240 cm

8

Ranges between 240 and 270 cm

9

Ranges larger than 270 cm

10-14

Reserved

15

Missing value









0 25 110

Image processing summary

Bit No.

 

1

  Raw data analysis used for raw data correction. Correction done using default

  parameters

2

  Raw data analysis used for raw data correction. Correction done using raw data

 analysis results

3

  Antenna elevation pattern correction applied

4

  Nominal chirp replica used

5

  Reconstructed chirp used

6

  Slant range to ground range conversion applied

7-9

  Reserved

All 10

  Missing value






0 25 120

 

RA2-L2 processing flag

 

Code
figure

 

0

Percentage of DSRs* free of processing errors during Level 2 processing is greater than the acceptable threshold

1

Percentage of DSRs free of processing errors during Level 2 processing is less than the acceptable  threshold

2

Reserved

3

Missing value


* DSR  =  Data set record




 

 

 

 

 


0 25 122

 

Hardware configuration for RF*

 

Code
figure

 

0

Hardware configuration for RF is A

1

Hardware configuration for RF is B

2

Reserved

3

Missing value


* RF =  Radio frequency



 

 

 

 

 


0 25 123

 

Hardware configuration for HPA*

 

Code
figure

 

0

Hardware configuration for HPA is A

1

Hardware configuration for HPA is B

2

Reserved

3

Missing value


* HPA =  High power amplifier




 

 

 

 

 


0 25 124

 

MWR*-L2 processing flag

 

Code
figure

 

0

Percentage of DSRs** free of processing errors during Level 2 processing is greater than the acceptable  threshold

1

Percentage of DSRs free of processing errors during Level 2 processing is less than the acceptable threshold

2

Reserved

3

Missing value


* MWR = Microwave radiometer

**
DSR  = Data set record
  



 

 

 

 

0 26 010

 

Hours included

 

Bit No.

 

1

0100 included

2

0200 included

3

0300 included

4

0400 included

5

0500 included

6

0600 included

7

0700 included

8

0800 included

9

0900 included

10

1000 included

11

1100 included

12

1200 included

13

1300 included

14

1400 included

15

1500 included

16

1600 included

17

1700 included

18

1800 included

19

1900 included

20

2000 included

21

2100 included

22

2200 included

23

2300 included

24

2400 included

25

Unknown mixture of hours

All 26

Missing value


 

 

 

 

 

 


0 29 001

 

Projection type

 

Code

figure

 

0

Gnomonic projection

1

Polar stereographic projection

2

Lambert's conformal conic projection

3

Mercator's projection

4

Scanning cone (radar)*

5

Reserved

6

No projection

7

Missing value

 

*    Projection type 4 indicates a Cartesian grid placed directly on the scanning cone defined by the azimuthal sweep of the radar.


 

 

 

 

 

 

0 29 002

 

Coordinate grid type

 

Code

figure

 

0

Cartesian

1

Polar

2

Other

3-6

Reserved

7

Missing value


 

 

 

 

 

 

 


0 30 031

 

Picture type

 

Code

figure

 

0

PPI

1

Composite

2

CAPPl

3

Vertical section

4

Alphanumeric data

5

Map of subject clutter

6

Map

7

Test picture

8

Comments

9

Map of ground ation

10

Map of radar beam height

11-13

Reserved

14

Other

15

Missing value


 

 

 

 

 

 

0 30 032

 

Combination with other data

 

Bit No.

 

1

Map

2

Satellite IR

3

Satellite VIS

4

Satellite WV

5

Satellite multispectral

6

Synoptic observations

7

Forecast parameters

8

Lightning data

9-14

Reserved

15

Other data

All 16

Missing value


 

 

 

 

 

 


0 31 021

 

Associated field significance

 

Code

figure

 

0

Reserved

1

1-bit indicator of quality

0 = good

1 = suspect or bad

2

2-bit indicator of quality

0 = good

1 = slightly suspect

2 = highly suspect

3 = bad

3-5

Reserved

6

4-bit indicator of quality control class according to GTSPP

0 = Unqualified

1 = Correct value (all checks passed)

2 = Probably good but value inconsistent with statistics (differ from climatology)

3 = Probably bad (spike, gradient, … if other tests passed)

4 = Bad value, Impossible value (out of scale, vertical instability, constant profile)

5 = Value modified during quality control

6-7 = Not used (reserved)

8 = Interpolated value

9 = Missing value

7

Percentage confidence

8

0 = Not suspected

1 = Suspected

2 = Reserved

3 = Information not required

9-20

Reserved

21

1-bit indicator of correction

(see Note (2))

0 = original value

1 = substituted/corrected value

22-62

Reserved for local use

63

Missing value

 

N o t e s

 

(1)        Associated field significance shall be used initially in conjunction with the quality of observed data.

(2)        The code figure 21 may be used within corrected messages with the corrected/substituted values identified.

(3)        Further applications may be developed.


 

 

 

 

 

 

0 31 031

 

Data present indicator

 

Bit No.

Value

Meaning

1

0

Data present

 

1

Data not present


 

 

 

 

 

 


0 33 002

 

Quality information

 

Code

figure

 

0

Data not suspect

1

Data suspect

2

Reserved

3

Quality information not given


 

 

 

 

 

 

0 33 003

 

Quality information

 

Code

figure

 

0

Data not suspect

1

Data slightly suspect

2

Data highly suspect

3

Data considered unfit for use

4-6

Reserved

7

Quality information not given


 

 

 

 

 

 

0 33 005

 

Quality information (AWS data)

 

Bit No.

 

1

No automated meteorological data checks performed

2

Pressure data suspect

3

Wind data suspect

4

Dry-bulb temperature data suspect

5

Wet-bulb temperature data suspect

6

Humidity data suspect

7

Ground temperature data suspect

8

Soil temperature (depth 1) data suspect

9

Soil temperature (depth 2) data suspect

10

Soil temperature (depth 3) data suspect

11

Soil temperature (depth 4) data suspect

12

Soil temperature (depth 5) data suspect

13

Cloud data suspect

14

Visibility data suspect

15

Present weather data suspect

16

Lightning data suspect

17

Ice deposit data suspect

18

Precipitation data suspect

19

State of ground data suspect

20

Snow data suspect

21

Water content data suspect

22

Evaporation/evapotranspiration data suspect

23

Sunshine data suspect

24-29

Reserved

All 30

Missing value


 


 

 

 

 

0 33 006

 

Internal measurement status information (AWS)

 

Code
figure

 

0

Self-check OK

1

At least one warning active, no alarms

2

At least one alarm active

3

Sensor failure

4-6

Reserved

7

Missing value


 

 

 

 

 

0 33 015

Data quality check indicator

 

Code
figure

 

0

Passed all checks

1

Missing-data check

2

Descending/reascending balloon check

3

Data plausibility check (above limits)

4

Data plausibility check (below limits)

5

Superadiabatic lapse rate check

6

Limiting angles check

7

Ascension rate check

8

Excessive change from previous flight

9

Balloon overhead check

10

Wind speed check

11

Wind direction check

12

Dependency check

13

Data valid but modified

14

Data outlier check

15-62

Reserved

63

Missing value


 

 

 

 

 

 

0 33 020

 

Quality control indication of following value

 

Code

figure

 

0

Good

1

Inconsistent

2

Doubtful

3

Wrong

4

Not checked                    

5

Has been changed

6

Estimated

7

Missing value


 

 

 

 

 

 

0 33 021

 

Quality of following value

 

Code

figure

 

0

Within limits

1

Outside limits

2

Reserved

3

Missing value


 

 

 

 

 

 

0 33 022

 

Quality of buoy satellite transmission

 

Code

figure

 

0

Good (several identical reports have been received)

1

Dubious (no identical reports have been received)

2

Reserved

3

Missing value


 

 

 

 

 

 

0 33 023

 

Quality of buoy location

 

Code

figure

 

0

Reliable (location was made over two satellite passes)

1

Latest known (no location over the corresponding pass)

2

Dubious (location made over one pass only; a second solution is possible in 5 per cent of the cases)

3

Missing value


 

 

 

 

 

 

0 33 024

 

Station elevation quality mark (for mobile stations)

 

Code

figure

 

0

Reserved

1

Excellent - within 3 meters

2

Good - within 10 meters

3

Fair - within 20 meters

4

Poor - more than 20 meters

5

Excellent - within 10 feet

6

Good - within 30 feet

7

Fair - within 60 feet

8

Poor - more than 60 feet

9-14

Reserved

15

Missing value


 

 

 

 

 

 

0 33 025

 

ACARS interpolated values

 

Code

figure

 

0

Time interpolated, latitude and longitude reported

1

Time reported, latitude and longitude interpolated

2

Time, latitude, and longitude interpolated

3

Time, latitude, and longitude reported

4-6

Reserved

7

Missing value


 

 

 

 

 

 

0 33 026

 

Moisture quality

 

Code

figure

 

0

Normal operations - measurement mode

1

Normal operations - non-measurement mode

2

Small RH

3

Humidity element is wet

4

Humidity element contaminated

5

Heater fail

6

Heater fail and wet/contaminated humidity element

7

At least one of the input parameters used in the calculation of mixing ratio is invalid

8

Numeric error

9

Sensor not installed

10-62

Reserved

63

Missing value


 

 

 

 

 

 

0 33 027

 

Location quality class (range of radius of 66% confidence)

 

Code

figure

 

0

Radius > 1500 m

1

500 m < Radius <1500 m

2

250 m < Radius < 500 m

3

Radius < 250 m

4-6

Reserved

7

Missing value


 

 

 

 

 

 

0 33 030

 

Scan line status flags for ATOVS

 

Bit No.

 

1

Do not use scan for product generation

2

Time sequence error detected with this scan

3

Data gap precedes this scan

4

No calibration

5

No earth location

6

First good time following a clock update

7

Instrument status changed with this scan

8-23

Reserved

All 24

Missing value

 

Notes:   If bit is set to 1 then statement is true.


 

 

 

 

 

 

 

0 33 031

 

Scan line quality flags for ATOVS

 

Bit No.

 

1

Time field is bad but can probably be inferred from the previous good time

2

Time field is bad and can't be inferred from the previous good time

3

This record starts a sequence that is inconsistent with previous times (i.e. there is a time discontinuity). This may or may not be associated with a spacecraft clock update (see scan line status flags for ATOVS)

4

Start of a sequence that apparently repeats scan times that have been previously accepted

5

Scan line was not calibrated because of bad time

6

Scan line was calibrated using fewer than the preferred number of scan lines because of proximaty to start or end of data or to a data gap

7

Scan line was not calibrated because of bad or insufficient PRT data

8

Scan line was calibrated but with marginal PRT data

9

Some uncalibrated channels on this scan

10

Uncalibrated due to instrument mode

11

Questionable calibration because of antenna position error of space view

12

Questionable calibration because of antenna position error of black body

13

Not earth located because of bad time

14

Earth location questionable because of questionable time code (see time problem code bits)

15

Earth location questionable - only marginal agreement with reasonableness check

16

Earth location questionable - fails reasonableness check

17

Earth location questionable because of antenna position check

18

Scan line calibration cold black body

19

Scan line calibration warm black body