Teleconference.16.May.2024

Task Team on Table Driven Code Forms (TT-TDCF)

Teleconference

• 16 May 12-14 UTC

Agenda

1. Opening and approval of agenda
2. Continue reviewing proposals...
3. AOB

Notes

• Secretariat updates
• The team reviewed the following proposals (see notes in issue comments)
  1. new normal and tangential velocity components parameter for Code table 4.2, Discipline 10 #253 - Sibylle
  2. issue 254 - Sebastien
  3. New section 4 templates and tables for verification scores #255 - Sebastien
  4. new code figure for BUFR Table B 0-02-080 #197 - Jeff
  5. new CCT C-13 entry for long-duration balloon observations #196 - Jeff
  6. BUFR Table D 16, New BUFR template for tropical cyclone tracks, wind radii and vortex #201 - Marijana
  7. New entries to C13 sub category to identify tropical cyclone forecast from machine learning #198 - Marijana
  8. Update C08.csv for CrIS #199 - Marijana

Fast-track 2024-2 proposals

All notes are in the comment section of each issue.

GRIB2

1. new precipitation type flag in Code Table 4.201 #238 - Francesca Eggleton
2. new mixed layer depth parameter in Code Table 4.2, Discipline 10 #244 - agreed, Sibylle
3. Deprecate template 4.44, create rectified version as template 4.50 #245 - Sebastien - in discussion
4. Additional Anomalies Templates #246 - Sebastien - in discussion
5. Code table 4.9: add an entry to encode a probability #247 - Sebastien - in validation
6. Code table 4.101 #248 - Sebastien - in validation - Sebastien - in validation
7. Code table 1.4, 4.3 and 4.6 #249 - Sebastien - in validation
8. Code table 4.2 and 4.238 #250 - Sebastien - in validation
9. new normal and tangential velocity components parameter for Code table 4.2, Discipline 10 #253 - Sibylle - in discussion
10. issue 254 - Sebastien
11. New section 4 templates and tables for verification scores #255 - Sebastien

BUFR4

1. BUFR Table D 10, New BUFR template for satellite reflectance #158 - Sibylle/Marijana
2. new code figure for BUFR Table B 0-02-080 #197 - Jeff
3. New BUFR Template for Snow Surface Temperature #198 - Charles Fierz - in discussion
4. Change to reporting of radiosonde winds near the poles #200 - Bruce Ingleby/Anna - agreed
5. BUFR Table D 16, New BUFR template for tropical cyclone tracks, wind radii and vortex #201 - Marijana

CCT

1. CCT 05 request to EUMETSAT, ESA, EC to identify CO2M-A satellite #161 - Simon/Marijana
2. new CCT C-1/11, C-5 and C-8 entries for commercial providers of radio occultation data #195 - Jeff
3. new CCT C-13 entry for long-duration balloon observations #196 - Jeff
4. new CCT C-13 entry to identify tropical cyclone forecast from machine learning #198 - Marijana
5. Update CCT C-08 entry to for CrIS #199 - Marijana/Simon

Other issues to discuss if time is available/as needed

1. Retirement of CREX #180 - Anna - done- approved by INFCOM-3
2. Move CCT-06 into the GitHub repository (Units) #162 - Anna
3. Divide CodeFlag_4_2.csv into multiple files #163 - Anna/Sebvi
4. map GRIB to ISO 19111 #187 - dependent on codes registry publication
5. Additional entry of length or number of octets in GRIB2_Template_ csv-files #219 - Sybille - to discuss between fast-tracks
6. Register GRIB with IANA #175 - need help registering
7. Register BUFR with IANA #140 - need help registering
8. Create GH actions to generate machine readable codes #242
9. Update GitHub actions #199
10. Update GitHub actions #197
11. Update broken links on WMO Community website #165 - Anna
12. Publish BUFR, GRIB and CCT codes to the WMO Codes Registry #171 - in progress, need help

Schedule for FT2024-2

• 26 June - Complete validations of proposals
• 15 July - Finalize all proposals
  • Validate and document (in issues) all proposals
  • 2-week window to prepare amendments
• 1 August - National Focal Point (NFP) review
  • submit amendments for endorsement and review
  • 2-month window for National Focal Point (NFP) review
• 1 October - WMO Adoption Procedure
  • 1.5-month window for final WMO adoption and publication
• 15 November - operational date (we are planning on releasing the machine-readable codes earlier)

see: https://github.com/wmo-im/wmo-im.github.io/wiki/Fast-Track-Schedules

Meeting schedule

• 4 June 2024
• 5 June 2024
• 25 June 2024
• 26 June 2024
• ? July 2024 (if needed)

List of participants

TT-TDCF Members

No.	Name	Agency	14 May
1	Jeffrey ATOR	NOAA	X
2	Marijana CREPULJA (lead)	ECMWF	X
3	Simon Stuart ELLIOTT	EUMETSAT	X
4	Sergio Henrique Soares FERREIRA	National Institute for Space Research, Brazil	X
5	Sandrine EDOUARD	Environment and Climate Change Canada	X
6	Sibylle KREBBER	DWD	X
7	Abderrazak LEMKHENTER	Météo Maroc	X
8	Marian MAJAN	HMEI
10	XUE Lei	CMA

Collaborators/Guests

Name	Agency	14 May
Sébastien VILLAUME	ECMWF	X
Antoine MERLE	EUMETSAT
Jakub Beer	HMEI
Charles FIERZ	SLF
Bruce INGLEBY	ECMWF

WMO Secretariat

Name
Anna MILAN	X
Ran ZHANG
Pekka ROSSI
Kruno PREMEC