Teleconference.2024.June.4and5

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

Teleconference

• 4 and 5 June 12-14 UTC

Agenda

1. Opening and approval of agenda
2. (Tuesday) Continue reviewing BUFR and CCT proposals...
3. (Wednesday) Continue reviwing GRIB and other proposals as needed
4. AOB

Notes

Tuesday

• Secretariat updates:
  • Publish BUFR, GRIB and CCT codes to the WMO Codes Registry #171 - in progress, need help
• The team reviewed the following issues:
  • new CCT C-13 entry to identify tropical cyclone forecast from machine learning #198
  • CCT 08, new codes for WindRAD on FY-3E and FY-3J #200

Wednesday

• the team reviewed the following proposals:
  • New BUFR Template for Snow Surface Temperature #198
  • Deprecate template 4.44, create rectified version as template 4.50 #245
  • Additional Anomalies Templates #246
  • Code table 4.9: add an entry to encode a probability #247
  • Code table 4.101 #248
  • Code table 1.4, 4.3 and 4.6 #249
  • Code table 4.2 and 4.238 #250
  • new normal and tangential velocity components parameter for Code table 4.2, Discipline 10 #253
  • Meteorological and hydrological hazards #254
  • New section 4 templates and tables for verification scores #255

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 - in discussion
2. new mixed layer depth parameter in Code Table 4.2, Discipline 10 #244 - Sibylle - in validation
3. Deprecate template 4.44, create rectified version as template 4.50 #245 - Sebastien - in validation
4. Additional Anomalies Templates #246 - Sebastien - in validation
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. Meteorological and hydrological hazards #254 - Sebastien - in discussion - NOT for FT2024-2
11. New section 4 templates and tables for verification scores #255 - Sebastien - in discussion - NOT for FT2024-2

BUFR4

1. BUFR Table D 10, New BUFR template for satellite reflectance #158 - Sibylle/Marijana - in discussion -NOT for FT2024-2
2. new code figure for BUFR Table B 0-02-080 #197 - Jeff - in validation
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 - in discussion

CCT

1. CCT 05 request to EUMETSAT, ESA, EC to identify CO2M-A satellite #161 - Simon/Marijana - in validation
2. new CCT C-1/11, C-5 and C-8 entries for commercial providers of radio occultation data #195 - Jeff - in validation
3. new CCT C-13 entry for long-duration balloon observations #196 - Jeff - in validation
4. new CCT C-13 entry to identify tropical cyclone forecast from machine learning #198 - Marijana - in validation
5. Update CCT C-08 entry to for CrIS #199 - Marijana/Simon - in validation
6. CCT 08, new codes for WindRAD on FY-3E and FY-3J #200 - Lei - in validation

Other issues to discuss if time is available/as needed

1. Move CCT-06 into the GitHub repository (Units) #162 - Anna
2. Divide CodeFlag_4_2.csv into multiple files #163 - Anna/Sebvi
3. map GRIB to ISO 19111 #187 - dependent on codes registry publication
4. Additional entry of length or number of octets in GRIB2_Template_ csv-files #219 - Sybille - to discuss between fast-tracks
5. Register GRIB with IANA #175
6. Register BUFR with IANA #140
7. Create GH actions to generate machine readable codes #242
8. Update broken links on WMO Community website #165 - Anna
9. 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

• 25 June 2024
• 26 June 2024
• 2 July 2024
• 9 July 2024

List of participants

TT-TDCF Members

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

Collaborators/Guests

Name	Agency	4 June	5 June
Sébastien VILLAUME	ECMWF	X	X
Antoine MERLE	EUMETSAT	X
Jakub Beer	HMEI	X	X
Charles FIERZ	SLF		X
Bruce INGLEBY	ECMWF

WMO Secretariat

Name
Anna MILAN	X	X
Ran ZHANG		X
Pekka ROSSI
Kruno PREMEC