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Teleconference 3 and 4.11.2020

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Jitsuko Hasegawa edited this page Nov 4, 2020 · 4 revisions

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

Teleconference 3-4.11.2020

Meeting minutes

Opening and Schedule

  • The team will meet 10:30-12:00 UTC (shortened if possible), Nov. 4.
  • The team will meet 12-14 UTC, Dec. 9 and 10 to finalize proposals for FT2021-1 and discuss outstanding issues.

Change in procedure to manage tables on Github through amendment process

  • When proposals are put in validation status, the Secretariat makes a new branch for each proposal (issue).
  • Team members who make proposals are responsible for changing the branch to reflect the proposals and for making necessary updates through the validation process.
  • The team does not use "pull request."
  • (To be confirmed) The Secretariat will merge all the branches of proposals that are ready for FT2021-1 by November 26 into one branch, so that team members can use it for validation of multiple proposals.

Review of GRIB proposals

No. GRIB2 Issue Link Assignee Status
1. Issue 53 New Product Definition Templates to generalize the percentiles (100-quantiles) forecast Templates to any q-quantiles https://github.com/wmo-im/GRIB2/issues/53 Sébastien in validation, branch will be created
2. Issue 54 Add potential evapotranspiration rate in Code Table 4.2, product discipline 2, category 0 https://github.com/wmo-im/GRIB2/issues/54 Sébastien in validation, branch will be created
3. Issue 56 Add "first guess" and "difference between First guess and Analysis" https://github.com/wmo-im/GRIB2/issues/56 Sébastien in validation, discuss with DWD about the sign of difference (adding two entries is also an option) and the meaning of "initialized analysis," branch will be created when ready
4. Issue 57 Add new parameters for ocean modelling in Code table 4.2 Discipline 10a https://github.com/wmo-im/GRIB2/issues/57 Sébastien in validation, branch will be created, entry numbers should be shifted down by 2 in Code table 4.2 Discipline 10, category 4
5. Issue 58 Add new temperatures in Code table 4.2 https://github.com/wmo-im/GRIB2/issues/58 Sébastien in validation, branch will be created
6. Issue 59 Add new entries in Code Table 4.2, product discipline 0, category 1 (moisture) https://github.com/wmo-im/GRIB2/issues/59 Sibylle in validation, discuss with ECMWF about the definition of "cloud ice precipitation," branch will be created
7. Issue 11 A product definition template for statistics over an ensemble https://github.com/wmo-im/GRIB2/issues/11 Tom status will be confirmed by Tom
8. Issue 32 Ocean Wave Table 4.2 additions https://github.com/wmo-im/GRIB2/issues/32 Tom status will be confirmed by Tom
9. Issue 10 Representing gnomonic grids https://github.com/wmo-im/GRIB2/issues/10 Jeff kept in validation status, not going to FT2021-1
10. Issue 6 Composite local time in GRIB message https://github.com/wmo-im/GRIB2/issues/6 Sébastien proposal will be submitted, will try to make it to FT2021-1

Review of BUFR proposals

No. BUFR4 Issue Link Assignee Status
1. Issue 51 BUFR sequence for DAYCLI https://github.com/wmo-im/BUFR4/issues/51 ET-DRC ---
2. Issue 21 Revision of E-Profile Sequences https://github.com/wmo-im/BUFR4/issues/21 Richard in validation, branch created and updated, Marijana will confirm the validation result
3. Issue 16 New Table D sequence for reporting observations from ocean gliders https://github.com/wmo-im/BUFR4/issues/16 David in validation, samples provided, Marijana and Marian will support validation
4. Issue 17 Table D sequence for reporting trajectory profile data from marine animal tags https://github.com/wmo-im/BUFR4/issues/17 David validation completed, will be in FT2021-1, seek pre-operational status
5. Issue 18 New Sequence and descriptors for GNSS Slant Total Delay BUFR https://github.com/wmo-im/BUFR4/issues/18 Sibylle in validation, samples provided, Jeff, Marijana and Sergio will support validation
6. Issue 5 Additional bio-geochemical sequences for data from Argo profiling floats https://github.com/wmo-im/BUFR4/issues/5 David in validation, samples required

WIGOS Station Identifier (Issue 50)

  • A kick-off meeting was held on October 28 among SC-IMT/ET-OM/TT-WSI, SC-IMT/ET-Data/TT-TDCF and SC-ON/ET-WT.
  • TT-TDCF needs to propose necessary amendments for Manual on Coders to INFCOM-1 (part III) meeting planned in February 2021.
  • Regarding the communication channel with satellite operators, CGMS Task Force can be used but it takes a while because its meeting is planned May-June 2021.
  • A concern was expressed around the use of WSI for satellites, because there are multiple existing satellite identifiers and WSI could introduce complication if WSI is used before NWP centers are ready.
  • The requirement of the use of WSI for satellites comes from users, not from satellite operators, to enable to integrate satellites into a broader WIGOS context.

Review of Common Code Tables proposals

No. CCT Issue Link Assignee Status
1. Issue 22 Maupuia is misspelled in Table C-12 https://github.com/wmo-im/CCT/issues/22 Anna in validation, branch will be created
2. Issue 24 Additions to Common Code Table C-3 Instrument make and type for water temperature profile measurements https://github.com/wmo-im/CCT/issues/24 David in validation, branch will be created
3. Issue 26 Add new entry to Common Code Table C-5 to identify HY-2C satellite of China https://github.com/wmo-im/CCT/issues/26 Fang in validation, branch will be created

Issues related to publication of Manuals

Validate machine-readable legacy format

  • The Secretariat sent out prerelease versions of BUFR and CCT for review.
  • Some errors were found; The Secretariat will send out an updated version by the end of this week and will finalize by November 16.
  • EUMETSAT will provide the Secretariat with information on possible support for conversion of GRIB tables as part of Vocabulary Manager.

Add description column in the tables

  • There is no progress at this moment.

Use of GRIB and BUFR registers in codes.wmo.int

  • Jitsuko will update the team after a meeting with Met Office, Chair TT-AvData and the Secretariat.

Agenda

  1. Opening and schedule
  2. Review of GRIB proposals.
  3. Review of BUFR proposals.
  4. Review of Common Code Tables proposals.
  5. Review of Issues related to publication of Manuals
  6. Next teleconference.
  7. AOBs

The team will review the following issues.

GRIB2

Submitted

  1. New Product Definition Templates to generalize the percentiles (100-quantiles) forecast Templates to any q-quantiles
  2. Add Potential evapotranspiration rate in Code Table 4.2, product discipline 2, category 0
  3. Add "first guess" and "difference between First guess and Analysis"
  4. Add new parameters for ocean modelling in Code table 4.2 Discipline 10
  5. Add new temperatures in Code table 4.2
  6. Add new entries in Code Table 4.2, product discipline 0, category 1 (moisture)

In progress

  1. A product definition template for statistics over an ensemble
  2. Ocean Wave Table 4.2 additions

In validation

  1. Representing gnomonic grids

BUFR4

Submitted

  1. BUFR sequence for DAYCLI

In validation

  1. Revision of E-Profile Sequences
  2. New Table D sequence for reporting observations from ocean gliders
  3. Table D sequence for reporting trajectory profile data from marine animal tags

In progress

  1. New Sequence and descriptors for GNSS Slant Total Delay BUFR
  2. Regulate the use of WIGOS Station Identifiers
  3. Additional bio-geochemical sequences for data from Argo profiling floats

Common Code Tables

Submitted

  1. Maupuia is misspelled in Table C-12
  2. Additions to Common Code Table C-3 Instrument make and type for water temperature profile measurements
  3. Add new entry to Common Code Table C-5 to identify HY-2C satellite of China

Issues related to publication of Manuals

  1. Validate machine-readable legacy format
  2. add description column in the tables
  3. use of GRIB and BUFR registers in codes.wmo.int

List of participants

No. Name Agency Nov. 3 Nov. 4
1 Jitsuko HASEGAWA JMA x
2 Enrico FUCILE WMO Secretariat
3 Abderrazak LEMKHENTER Météo Maroc x
4 Fang ZHAO CMA x
5 Sergio Henrique Soares FERREIRA National Institute for Space Research, Brazil x
6 Tom KRALIDIS Environment and Climate Change Canada
7 Jeffrey ATOR NOAA x
8 Sibylle KREBBER DWD x
9 Richard WEEDON Met office x
10 Sébastien VILLAUME ECMWF x
11 Marijana CREPULJA ECMWF x
12 Simon Stuart ELLIOTT EUMETSAT x
13 Marian MAJAN HMEI x
14 Denis STUBER France, ET-DRC
15 Christina LIEF USA, ET-DRC
16 Anna MILAN WMO Secretariat x
17 Xiaoxia CHEN WMO Secretariat

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