Meeting 2023 06 22 - wmo-im/tt-wismd GitHub Wiki

Date/Time

Thursday 22 June 2023 12h - 13h30 UTC

Location

MS Teams

Attendees

Team

Name Agency GitHub handle Attendance
Mr Tom KRALIDIS (Lead) MSC @tomkralidis X
Mr Guillaume AUBERT EUMETSAT @gaubert X
Mr Xinqiang HAN CMA @Amienshxq X
Ms Hanane KAMIL Météo Maroc @hananeKamil
Mr Ioannis MALLAS ECMWF tbd
Mr Ian MCDONALD EUMETSAT @McDonald-Ian X
Mr Steve OLSON NOAA @solson-nws X
Mr Ján OSUSKY HMEI @josusky
Mr David PODEUR Météo-France @davidpodeur
Ms Antje SCHREMMER DWD @antje-s X
Ms Julia SEILAND DWD @jsieland

Collaborators/Guest

Name Agency GitHub handle Attendance
Mr Kenji TSUNODA JMA @KenRJTD X
Mr Yutaro TONOOKA JMA X

WMO Secretariat

Name Agency GitHub handle Attendance
Ms Anna MILAN WMO @amilan17 X
Mr Dave Berry WMO @david-i-berry

Agenda

  • Previous meeting minutes and actions (all)
  • Secretariat updates (Anna)

WTH

WCMP2

WNM

Notes

  • Team reviewed actions; reminder that there is a F2F planned for 11 September;

  • the team discussed issues (starred "*"), see notes below and in issue comments

    • NWP subtopics proposal: https://github.com/wmo-im/wis2-topic-hierarchy/issues/44#issuecomment-1600366494: (Antje) recommends that they make a PR with a particular version; the team noted that versioning (X.y) is still TBD; [SIDE COMMENT:(Guillaume) expressed a separate concern about how TH might flood users with too many results and demonstrated how searching in catalogs usually start at the "bottom" of the TH;]
    • Multidisciplinary datasets (/issues/36): Tom shared the most recent decision with the team;
    • Browseable READMEs in the GitHub: team likes the approach; (Tom) it would be also good to have a simple text of the TH (e.g. weather.predictions.nowcasting) for copy/paste
    • Index file notifications: (Guillaume) this is cutting into putting overloading the notification message with metadata; If this is acceptable for GRIB2, then why not use the same approach for satellite data?; (Tom) each GRIB2 file should be provided and the link to the directory (with GRIB2 and index files) should be in the metadata record; (Antje) the canonical link...(?) (Tom)...? (Guillaume) this approach is too data dependent (?); (Antje) could they put the grib and index into a zip file/tar ball? (Tom) but then there's an extra step to access the data; (Tom) each GRIB2 file has a notification message with a link to the GRIB2 data file and a related link to the index file in the notification message; (Antje) if cache="false" then no problem; (Tom) the index file is only a helper, not required to cache; (Antje) if there is one-to-many and then everything might get downloaded to cache and we don't want this; (Team) notification message can provide a related link to the parent directory with all the grib and index files; (Antje) it would be better if each notification for each grib file had a direct link to the relevant index file because this would support programmatic downloading; (Tom) let's try to keep the approach domain independent;

  • Organize level 8+ topics: https://github.com/wmo-im/wis2-topic-hierarchy/issues/38: @amilan17, @antje and (maybe others) will prepare something for the next meeting;

  • Tom provided a quick overview on WCMP2 actions; final recommendation on provider roles was to use the roles from "STAC" and there is a PR implementing this; Controlled vocabularies and facets and WNM will be discussed at the next meeting;

COB

  • change meetings to 2 hours at 12h UTC, but on July 7 the meeting will start at 11h30 UTC

Actions

  • Guillaume: add an issue addressing search/topics/categories
  • Anna/Tom: meet/discuss how will the TH be communicated in the WIS2 Guide, because it doesn't have a specification exactly;
  • All: review WCMP2 PR #110 -- merged
  • Tom: update WCMP2 to add contact roles

Next meeting

2023-07-07