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BUFR edition 4
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BUFR table B descriptors for atmospheric composition #160

Closed marijanacrepulja closed 1 year ago

marijanacrepulja commented 1 year ago

Initial request

ECMWF is proposing a new BUFR table B descriptors to represent atmospheric composition observations.

Amendment details

Amendment details

1. Update CCT-11 that is linked to 0-01-035 for Originating centre Code Originating centre
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)
2. Add a new elements in table B F X Y ELEMENT NAME UNIT SCALE REFERENCE VALUE DATA WITH (bits)
0-02-009 MODIS aerosol algorithm CODE TABLE 0 0 4
3. Add a new CODE/FLAG TABLE 0-02-009 for MODIS aerosol algorithm Code MODIS aerosol algorithm
0 Land corrected reflectances
1 Ocean best solution
2 Ocean average solution
3-14 Reserved
15 Missing value
4. Add a new elements in table B F X Y ELEMENT NAME UNIT SCALE REFERENCE VALUE DATA WITH (bits)
0-33-054 Overall quality of retrieved atmospheric profile Code table 0 0 3
5. Add a new CODE/FLAG TABLE 0-33-054 for Overall quality of retrieved atmospheric profile Code Overall quality of retrieved atmospheric profile
0 Profile values good
1 Profile values suspected
2 Reserved
3 Profile values not good
4-6 Reserved
7 Missing
6. Add a new elements in table B F X Y ELEMENT NAME UNIT SCALE REFERENCE VALUE DATA WITH (bits)
0-20-079 Snow or ice crystals indicator Code table 0 0 2
7. Add a new CODE/FLAG TABLE 0-20-079 for Snow or ice crystals indicator Code Snow or ice crystals indicator
0 No snow or ice
1 Snow present
2 Reserved
3 Missing
8. Add a new elements in table B F X Y ELEMENT NAME UNIT SCALE REFERENCE VALUE DATA WITH (bits)
0-08-045 Character of particulate matter Code table 0 0 8
9. Add a new CODE/FLAG TABLE 0-08-045 for Character of particulate matter Code Character of particulate matter
0 Aerosols all types
1 Desert dust
2 Black carbon
3 Sea salt
4-254 Reserved
255 Missing
10. Add a new elements in table B F X Y ELEMENT NAME UNIT SCALE REFERENCE VALUE DATA WITH (bits)
0-15-043 Number of averaging kernel layers Numeric 0 0 10
F X Y ELEMENT NAME UNIT SCALE REFERENCE VALUE DATA WITH (bits)
0-15-044 Averaging kernel value Numeric 6 - 5000000 31

Comments

No response

Requestor(s)

Roberto Ribas, Marijana Crepulja (both from ECMWF)

Stakeholder(s)

Copernicus Atmosphere Monitoring Service

Publication(s)

Example: Manual on Codes (WMO-No. 306), Volume I.2, BUFR table B

Expected impact of change

MEDIUM

Collaborators

No response

References

No response

Validation

No response

amilan17 commented 1 year ago

https://github.com/wmo-im/CCT/wiki/Teleconference.2%263May.2023 notes: Marijana presented proposal; Jeff pointed out that there are originators in the main table that are not national centers; there was a discussion on originating centre tables and which ones should be in use.

ACTION (@amilan17):

amilan17 commented 1 year ago

https://github.com/wmo-im/CCT/wiki/Teleconference.6.7.June.2023 notes: 0-01-035 has more space;

marijanacrepulja commented 1 year ago

Hi @amilan17, I have updated the branch. Could you please check and move it to ready for FT.

I have realised that entries for 0-01-035 Originating centre is linked to Common Code Table C-11. Therefore I have to create an issue under CCT in order to update C11.csv file

Many thanks!

amilan17 commented 1 year ago
  1. For consistency with "20022,Character of precipitation" and "020026,Character of obscuration" I recommend changing 008045 to "Character of particulate matter"
  2. CODE/FLAG TABLE 0-20-079: Do we need to indicate that ice crystals are present or just snow?
marijanacrepulja commented 1 year ago
  • For consistency with "20022,Character of precipitation" and "020026,Character of obscuration" I recommend changing 008045 to "Character of particulate matter"
  • CODE/FLAG TABLE 0-20-079: Do we need to indicate that ice crystals are present or just snow?

@amilan17 As for entries in 0-20-079, these values are required for now, we made name generic for the future use of the table

amilan17 commented 1 year ago

https://github.com/wmo-im/CCT/wiki/Teleconference.13.July.2023 notes:

@marijanacrepulja will update branch and then it's ready

amilan17 commented 1 year ago

https://github.com/wmo-im/CCT/wiki/Teleconference.13.July.2023 notes:

@marijanacrepulja will provide samples and @jbathegit will validate within a week

marijanacrepulja commented 1 year ago

sample_for_descriptors.tar.zip

Hi @jbathegit, I have uploaded the sample.

Many thanks for your help with validation.

amilan17 commented 1 year ago

branch is ready, waiting for validation.

SibylleK commented 1 year ago

Here the output of the DWD BUFR reading software: sample_for_descriptors.bufr.DWDreadbufrxOutput.zip

The values are the same as in sample_for_descriptors.bufr.txt.

There is a typo in BUFRCREX_TableB_en_15.csv for the reference value of 015044. It should be written without a space. (-5000000 instead of - 5000000)

Otherwise, in my view, the validation is done.

jbathegit commented 1 year ago

The sample file looks OK to me too.