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Teleconference 18 and 19.5.2022

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Marijana Crepulja edited this page May 17, 2022 · 11 revisions

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

Teleconference 18 and 19.05.2022

Agenda

  1. Opening and approval of agenda
  2. Secretariat updates
  3. Review of GRIB proposals
  4. Review of BUFR proposals
  5. Review of Common Code Tables proposals
  6. Schedule of FT2022-2
  7. AOB

Secretariat Updates

GRIB2

The list of issues proposed so far, divided into substantial ones and those with editorial nature.

No. GRIB2 Issue Assignee Status
1. Issue 89 Surface adjusted wind (UK) Richard in discussion
2. Issue 147 New parameters and table for vegetation/irrigation/wetland (code Table 4.2 and new Code table 4.239 ) Sebastien In discussion, Sebastien to follow up with Sibylle over whether new descriptor / table is required for wetland type or whether it can be merged with an existing land cover table.
3. Issue 146 New category "Urban area" within discipline 2 "Land Surface Products" Sebastien No objections to new category, Sebastien will also update issue with a table listing all the categories. Branch to be added.
4. Issue 150 Code Table 4.2: parameters related to energy/water budgets Sebastien No objections but some uncertainty over which category some of the new parameters (those related to 'pure' energy as opposed to temperature etc) should go in, help requested. Sibylle to consult with experts in DWD.
5. Issue 149 Code table 4.2 - New parameters for ocean modelling (part 2) Sebastien Within ECMWF there is a move away from NetCDF to GRIB with the ocean models and new GRIB parameters are required. Internal experts at ECMWF are happy with the proposal but it would be good to get a second opinion from experts in the ocean modelling community on names, units etc to check for errors / clarity. David to follow up and identify who to consult with.
6. Issue 151 Code Table 4.2 - add pH in discipline 0 category 20 Sebastien No objections, branch to be added.
E. 1 Issue 120 Code Table 4.240/Att.III - Error in function Anna, Sibylle Correction required, Sibylle has consulted with colleagues and will forward the correct verison David and Anna who will then update the Manual on Codes.
E. 2 Issue 145 Correct units in Code table 4.2 discipline 4 category 4 Anna Delayed until Anna is back in the office
E. 3 Issue 144 Mistake in Flag table 3.4 - scanning mode Anna Simple correction ot typographical error, Manual on Codes will be updated.

BUFR4

The list of issues under consideration, divided into substantial ones and those with editorial nature.

No. BUFR4 Issue Assignee Status
1. Issue 78 Proposal for BUFRCREX_CodeFlag_en_40.csv Simon Delayed until May meeting. Simon to follow up and report back.
2. Issue 108 New code for occultation sounding Marijana No objections, branch to be created
3. Issue 111 New BUFR codes for Retrieval identifier Marijana Discussion over name / text for new entry in code table (note also typo, Aelous -> Aeolus). Marijana to consult with the data providers and whether the entry can be made more generic.
4. Issue 115 New BUFR template for CCI snow cover fraction Marijana No objections to sequence and consenus on new code table entry after discussion. Marijana and Sibylle to work on validation, new branch to be created.
5. Issue 112 New code for TROPICS in Satellite classification Marijana No objections, new branch to be created
6. Issue 109 New BUFR descriptor for light source Marijana In progress, discussion over new descriptor and meaning of the values. Marijana to add explanatory note, linking to the Hipparcos catalogue.
7. Issue 114 Code table 0 20 009 - General weather indicator (TAF/METAR): new entry NCD Sybille No objections, branch to be created
8. Issue 113 Code table 0 08 092 - Measurement uncertainty expression: New entry Sybille No objections, reference to BIPM GUM to be included.
9. Issue 117 New BUFR template for TROPICS Marijana In progress, wew sequence and elements discussed. Some uncertainty over bit flag meaning, Marijana to follow up with providers and to update proposal. Consultation with CGMS also required.
10. Issue 106 Create new 3-15-023 sequence, to allow for use of correct range of WMO identifiers which cannot be stored using 3-15-013 Jeff In progresss.
11. Issue 5 Additional bio-geochemical sequences for data from Argo profiling floats David Delayed by issue 16 (Glider template).

Common Code Tables

The list of issues under consideration, divided into substantial ones and those with editorial nature.

No. CCT Issue Assignee Status
1. Issue 84 Add a new entry to C-8 to identify GNOS-2 and MWTS-3 on FY-3E Liu Yiming No objections, branch to be created.
2. Issue 85 Add a new entry to C-2 Korean equipment code for WeatheX WxR-301D Marijana No objections, branch to be created
3. Issue 86 Add a new entry to C-8 to identify rescued satellite instruments, ALTIUS and TMS Marijana In progress, CGMS to be asked to assign code numbers.
4. Issue 88 Add new entry to C-5 to identify ALTIUS, EarthCARE and TROPICS Marijana In progress, some changes required as per disucssion in issue.
5. Issue 82 New entry in Common Code Table C12 for DBNet station of Cayenne (French Guiana) Yann No objections, branch to be added.
6. Issue 91 New entry in CCT C-14 Jeff No objection, branch to be created
7. Issue 92 New H2O entries in C-14 Sebastien In progress, Sebastien to add code numbers for new entries.
8. Issue 83 Add new data designators T1T2 to Manual on the GTS Anna In discussion
E 1. Issue 89 Fix typo in Common Code table C-14 Sebastien Typo to be fixed

Recommended practice of Github issue management

  • When a new proposal (issue) is created, the issue is generally assigned to the person who makes the proposal and put in "submitted" status.
  • Once the team agrees to the general approach and decides to go to validation status, chair moves the issue to "in validation" status and the Secretariat creates a branch. If further discussion is necessary, the issue is moved to "in discussion" status.
  • Once the team agrees to the final proposal, asignee consolidates the finalized the proposal in the original post, updates the branch, and post a comment saying "branch updated" with mention to Chair and the Secretariat. (Please do not change issue status.)
  • Chair confirms that the proposal is finalized and the associated branch is updated, and moved the issue to the "validated" status.

Schedule for FT2022-2

  • One 2-hour meeting to confirm schedule: March 16
  • Deadline for submission of proposals: March 31
  • Two 2-hour meetings to review new proposals: April 26 & 28
  • Two 2-hour meetings to conclude the proposals: May 18-19
  • Deadline for validation (if not completed by the meeting above): June 3
  • One additional meeting to finalize remaining issues if necessary: June 8
  • National Focal Point review: mid-July 2022
  • WMO adoption process: mid-September 2022
  • Codes are officially operational: mid-November 2022

AOB

  • Development of standardized reporting practices for hourly reporting from GBON stations (Issue 107)

List of participants

No. Name Agency Apr. 26 Apr. 28
1 Jeffrey ATOR NOAA
2 Marijana CREPULJA ECMWF X X
3 Simon Stuart ELLIOTT EUMETSAT X
4 Sergio Henrique Soares FERREIRA National Institute for Space Research, Brazil X X
5 Tom KRALIDIS Environment and Climate Change Canada
6 Sibylle KREBBER DWD X X
7 Abderrazak LEMKHENTER Météo Maroc
8 Marian MAJAN HMEI X
9 Sébastien VILLAUME ECMWF X X
10 Richard WEEDON Met office
11 Enrico FUCILE WMO Secretariat
12 Anna MILAN WMO Secretariat
13 David BERRY WMO Secretariat X X
14 Xiaoxia CHEN WMO Secretariat
15 Fang XHAO CMA X X
16 XUE Lei CMA X

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