Teleconference 4.10.2022.

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

Teleconference 4.10.2022.

Agenda

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

Secretariat Updates

Fast-track 2023-1 proposals

The team discussed the following proposals. All notes are in the comment section of each issue.

GRIB2

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

No.	GRIB2	Issue	Assignee
1.	Issue 167	New section 4 templates to encode 2D wave spectra and wave parameters selected by wave period	Sebastien
2.	Issue 166	GRIB2_Template_4_91_ProductDefinitionTemplate_en.csv: Possible off-by-one error in description	Sebastien
3.	Issue 157	Categories 8-12 are defined in Common Code Table 4.1 but are not used in Code Table

BUFR4

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

No.	BUFR4	Issue	Assignee
1.		New code for occultation sounding	Simon

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

| No. | CCT | Issue | Assignee | | |------------|--------------------------------------------------------------------------------------------------------------------|------------------------------------------------------|-------------------------------| | 1. | Issue 113 |Change name of Turkey| | | 2. | Issue 110 |Additions to Common Code Table C-3 Instrument make and type for water temperature profile measurements| |

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

• The team discussed options for an inperson meeting in 2023
• Next meeting will be sometime in September and dates will be determined by a Doodle Poll

List of participants

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