Teleconference 6.10.2020

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

ET-DRC experts will provide the first draft of the new BUFR sequence (start from the existing sequence 3 07 074 and add new elements as required through the review of the trial phase). BUFR4 issue 51 (Denis Stuber by 27-10-2020)
Provide some more information about the potential use of codes.wmo.int by OGC and in particular WCS. CCT issue 23 (Tom Kralidis, Marian Majan)
Study codes.wmo.int logs to provide information on the users of the codes registry CCT issue 23 (Richard Weedon, Mark Hedley)
Provide a draft for the use of WSI in the Manual on Codes starting from the circular letter sent in 2017 BUFR4 issue 50 Enrico Fucile, Simon Elliott, Jistuko Hasegawa + all others to comment)
Provide the proposals for FT2021-1 by 27 October (everyone)
Make a branch for BUFR4 issue 21
Test machine-readable formats for FT2020-2. Enrico and Anna to contact some members of the team before publication. validate machine-readable formats

Dr. Denis Suber introduced the requirement for a new BUFR sequence based on the review of the trial phase of DAYCLI, in which 20 Members showed interest in participation.
ET-DRC experts will provide the first draft of the new BUFR sequence (start from the existing sequence 3 07 074 and add new elements as required through the review of the trial phase).
Team members are invited to give feedback to the proposal; contribution of members whose country participates in the trial phase is especially welcome.
Discussion is at: https://github.com/wmo-im/BUFR4/issues/51

Chair provided the situation of outdated GRIB2/BUFR4 tables on code registry without official status of WMO, including the fact that IWXXM is making reference to a number of tables, some of them are BUFR Tables defined for BUFR versions of METAR/SPECI and TAF and a potential solution would be to move these entries/tables to No.306 Vol. I.3 and codes.wmo.int/49-2 to be maintained by TT-AvData to resolve dependencies.
The Secretariat updated the team about the agreement between the WMO Secretariat and UK Met Office over the code registry and indicated that there was no option to delete anything on the registry but the Team could decide to freeze GRIB2/BUFR4 tables saying that they are no longer part of WMO's official resource if it is appropriate; to note, there is no table version control in the code registry.
The first step is to find other use cases of GRIB2/BUFR4 tables on codes.wmo.int.
Marian and Tom are requested to give some more information about potential use by WCS.
Team members are invited to inform if they identify any other use cases.
Richard is requested to update the status of code registry.

Chair provided updates on the development of E-PROFILE BUFR sequences; new Table B descriptors and entries of existing code tables are part of FT2020-2, and the new sequences remain for FT2021-1.
The Secretariat is requested to create a new branch to finalize the validation process.
Upon completion of validation, the team will conclude on this issue for inclusion in FT2021-1, separately from other issues.
Discussion is at: https://github.com/wmo-im/BUFR4/issues/21

Chair provided the analysis of the issue of WSI, including the provisions of the Technical Regulations (WMO-No. 49) and the Manual on WIGOS (WMO-No. 1060).
This is a multi-faceted issue but at this moment the team focuses on how to report WSI in BUFR/CREX.
The action is to include elements of the existing guidelines in the appropriate parts of Volume I.2 of MoC.
Team members (Simon and Jitsuko volunteered but also others!) are invited to post ideas how to do in the Github issue at: https://github.com/wmo-im/BUFR4/issues/50

Provide the proposals by 27 October
Teleconference 3 & 4 November (*) to decide which proposals can make it to FT-2021-1.
Teleconference 8 & 9 December (*) to finalise proposals for FT-2021-1
Send to National Focal Points beginning of January 2021, with the deadline of the beginning of March 2021
Operational in May 2021
(*) Two 2-hour teleconference sessions (12-14 UTC) are scheduled for each time but are shortened if possible.

No.	Name	Member/Organization
1	Jitsuko HASEGAWA	Japan
2	Enrico FUCILE	WMO Secretariat
3	Abderrazak LEMKHENTER	Morocco
4	Fang ZHAO	China
5	Sergio Henrique Soares FERREIRA	Brazil
6	Tom KRALIDIS	Canada
7	Jeffrey ATOR	USA
8	Sibylle KREBBER	Germany
9	Richard WEEDON	UK
10	Sébastien VILLAUME	ECMWF
11	Marijana CREPULJA	ECMWF
12	Simon Stuart ELLIOTT	EUMETSAT
13	Marian MAJAN	HMEI
14	Denis STUBER	France, ET-DRC
15	Christina LIEF	USA, ET-DRC
16	Anna MILAN	WMO Secretariat
17	Xiaoxia CHEN	WMO Secretariat
18	Peer HECHLER	WMO Secretariat