2025.01.14.et.data

ET-Data meeting (online)

14 January 2025 13-15h UTC

Agenda (draft)

• Welcome (Marijana)
• Secretariat updates (Anna)
• CF netCDF news and/or comments (all)
• Continue to review issues for FT2025-1 (all)
  • GRIB2
  • BUFR4
  • CCT
• COB

Notes

• Open: Marijana welcomed the team and welcomed everyone happy new year

• Secretariat update: Anna reminded all that these are the last meetings before FT2025-1

• netCDF

  • Ethan Davis brought up the potential to map between CF Standard Names and GRIB/BUFR; there are also efforts to map CF to I-Adopt; (Marijana) Would you like to present this at an upcoming meeting so we can discuss how to map? (Ethan) this would be good, but it's in a very premature state at the moment. Time frame for starting this up in TBD; (Lars) it's come up in the past, but not sure how/when; (Anna) would it be helpful to have the GRIB and BUFR codes on WMO Codes Registry as a first step for this mapping? (Ethan) yes, along with NERC etc. Mappings can be done independently, but registries are useful too. (Lars) Enhancement to the WMO Code registry would be useful, e.g. what quantities mean; (Marijana) we can start with a subset of oceanographic values or units (Ethan) mapping will not be a simple process; the I-Adopt concepts can help with this complexity; Not as involved with the mapping efforts as others outside this team; ACTION: Ethan, Daniel, Lars determine the status of mapping efforts on the CF side and who/when someone can present to the et-data group; sometime in the next 3-6 months. (Abderrazak via chat)I think the starting point for netcdf is to study the possibilities offered by this format including variables, dimensions, attributes and namespace. Then see the existing gap in the CF namespace and how to integrate all the metadata of grib and BUFR into the netcdf format.

• Antoine provided an update on #219 - Additional entry of length or number of octets in GRIB2_Template_ csv-files

• The team reviewed the following proposals for GRIB2:

  • New section 4 templates and tables for verification scores #255
  • New parameters in Code Table 4.2 #286
  • New categories for Hazard indices in discipline 20 [Code Table 4.1 and 4.2 and new Code table 4.253] #285
  • New section 4 Templates to encode wave parameters #284
  • New wave and ocean parameters in Code Table 4.2 discipline 10 categories 0 and 2 #283
  • New parameters in Code table 4.2 discipline 2, category 4 for Fire weather and new source of emissions in Code table 4.238 #282
  • New section 4 template to encode random fields for stochastic parametrizations and associated code table 4.X entries #281
  • New templates for reforecast in section 4 #280
  • Code Table 4.2-0-7: add new codes for Storm Severity Index (SSI) #279
  • Code Table 4.2-0-19: add new codes for freezing levels #278
  • new entries in Code Table 1.3 for WMO lead centre for global climate reanalyses #288
  • New parameters in Code Table 4.2 for radar data #287
  • additional code table entries for Fast Track 2025-1 #292

• The team reviewed the following proposals for BUFR4:

  • New sequence for : CFO-SWIM off nadir data #214
  • New BUFR Template for Snow Surface Temperature #198
  • New descriptor for Most unstable CAPE; BUFRCREX_TableB_en_13.csv #209
  • New descriptor for OLCI classification and quality; BUFRCREX_CodeFlag_en_40.csv #210
  • New Table B descriptors, Sea-surface height anomaly measurement #213
  • New descriptors for anemometer height and dataset source information; BUFRCREX_TableB_en_07.csv, BUFRCREX_TableB_en_01.csv #211
  • Table D, proposal for an new BUFR template dedicated to drifting balloon platforms: 3 11 013 #208

• The team reviewed the following proposals for CCT:

  • CCT 08 request to identify instruments on CO2M-A #220
  • New chemical species in Common Code table 14 #219
  • Add Tianmu-1 satellite #217
  • new C-5 entries for NOAA 22 and 23 #218
  • new CCT C-1/11 and C-12 entries for Scripps #216

• Sibylle noted that we need clarification on some quality flags in BUFR - to add to the agenda on Wednesday.

Attendees

Name	Country/Affiliation	GitHub handle	Attendance
Marijana CREPULJA (Chair)	ECMWF	@marijanacrepulja	X
Hoda AHMED	Egypt	@Hodasarhanahmed
Jeff ATOR	USA	@jbathegit	X
Lars BARRING	Sweden	@larsbarring	X
Jakub BEER	HMEI/IBL	@Jakub-Beer	X
Tony BOSTON	Australia	@tonyboston-au
Mark CURTIS	Australia	@marack
Ethan DAVIS	USA	@ethanrd	X
Sandrine EDOUARD	Canada	@edouardsandrine	X
Simon ELLIOTT (member emeritus)	EUMETSAT	@SimonElliottEUM	X
Sergio FERREIRA	Brazil	@sergioh-pessoal	X
Sibylle KREBBER	Germany	@SibylleK	X
Daniel LEE	EUMETSAT	@erget	X
Abderrazak LEMKHENTER	Morocco	@lemkhenter	X
Yiming LIU	China	@LiuYiming610
Antoine MERLE	EUMETSAT	@antoinemerle	X
Yohanna MICHAU (to be confirmed)	France
Kevin O'BRIEN	USA	@kevin-obrien
Debbie O'SULLIVAN	UK	@drdaphos	X
Sébastien VILLAUME	ECMWF	@sebvi
Da XU	China	@DaXu-NMIC
Anna MILAN	WMO Secretariat	@amilan17	X
---	---	---	---
Alexis DOERENBECHER (guest)	MeteoFrance	@adoerenbecher
Charles FIERZ (guest)	SLF	@fierz
Patrick LEIBERSPERGER (guest)	SLF
Ran ZHANG	WMO Secretariat
Robert OSINSKI (guest)	ECMWF	---	X
Matthew Griffith	ECMWF	---