TT AvData Discussion 2024 Jan 24

Details

2024-Jan-24, 12:00-13:30 UTC, Microsoft Teams

Agenda/Notes

1. Potential implication of further reviews required by ANC on the comments to the METP endorsed proposals to ICAO Annex 3

   • It is understood that the process to approve IMP endorsed proposals to ICAO Annex 3 will continue. They will be published as Amendment 81 and become applicable in Nov 2024. For METP endorsed proposals the approval process will be delayed and hopefully be published as Amendment 82 and become applicable in Nov 2025.
   • Recalling that the development of IWXXM release candidate has leapfrogged the approval of the METP endorsed proposals, the risk for the approved version being different from the proposed one has inevitably increased. ICAO Secretariat subsequently advised that "During the consultation phase, there were no comments from States and International Organizations on solely IWXXM-related proposals, while there are several comments on the proposed Standard for VONA exchange via IWXXM, suggesting it should be kept as a recommended practice."
   • Noting also that there are voices from some members of ICAO WG-MOG wishing to start trial production of QVACI by Nov 2024 even though Amendment 82 has yet to be approved, it is proposed to pursue with the public consultation in late Jan/early Feb 2024. Those who would like to conduct tests can make use of the release candidate published on http://schemas.wmo.int/iwxxm by then.
   • We will need to rename the version from 2024-xRC1 to 2025-xRC1 before publishing the release candidate for public consultation.

2. Setting up of sub-groups to:

   • Review existing codelists used by IWXXM, advised possibility of consolidation, proposed consolidated lists and implementation plan
   • Review the replacement of text mentioning WMO No.49-2 by ICAO Annex 3/PANS-MET in IWXXM models, schemas, documentations (e.g. WMO No.306 Vol. I.3), websites, etc., proposed respective changes and implementation plan

3. Some other potential activities requiring establishment of other sub-groups:

   • Development of shared representations to be used by iwxxm:originatingCentre (if necessary), iwxxm:phenomenonGeometry (if necessary) and iwxxm:phenomenonProperty. This ties in with the development of IWXXM-SX to support future MET information services on SWIM
   • Exploration of the workflow to develop JSON version of IWXXM and recommend if this should be made available in parallel with XML schemas

Notes

• Choy opened the meeting

• Choy talked about how Amd 81 is delayed and is now deferred to Amd 82

• Choy made some updates to IWXXM. The team would like some time to review in February. (Anna) should we make sure the references to WMO-No. 49 are removed first? (Choy) I think we can circulate the schemas first and cleanup the text as needed later. (DECISION) circulate a release candidate for public consultation in early or mid March, pending reviews by the team.

• Choy talked about the desire to set up sub-groups for codelists and references to WMO-No. 49;

  • for codelists, we need to understand the codes that are still actively in use for Amd 82; create a fork/branch of iwxxm-codelists to re-organize the codes; Would like to have these changes in place by September for incorporation into the next release of IWXXM (Amd 82). There was a discussion on whether the code list URL changes would be a major or minor version change;

• Dirk talked about the schema for the new airport information services; (see github.com/team-sx); Formed a small team with Finland, DWD and Choy to have something for testing in 2024 to be used in Europed for initial SWIM services; (Anna) what are you referring to for the development of the schema? (Dirk) using requirements developed by other teams in ICAO along with Eurocontrol; On a global level the timescale is a lot longer; (Choy) the requirements are basic (e.g. wind, temperature...) but the resolutions are dependent on the use cases; We are trying to develop the use cases(?) at the same time; At the end the requirement may be the result of the outcome; (Dirk) we'd also like to have some initial examples available; Hope that it will be included in requirements by METP for Amd 83;

• Who would like to volunteer for the codelists sub-group? Dirk can lead the codelists and Boonchai can lead the reivew of text; Choy will circulate an email for gather other volunteers from the team and contact the leads separately to talk about the details; Noting that there is ample time before finalization of the schema for Amd 82;

Actions

• Anna: set up a meeting in late February

Next Meeting

Attendees

• BL Choy
• Dirk Zinkhan
• Ján Körösi
• Mark Oberfield
• Boonchai Tepyose
• Anna Milan

Apologies

• Youssef Darari
• Rodrigo Cortes
• Raquel Viquez
• Wilberforce Kikwasi
• Yann Génin
• Dmitry Moryakov
• Hyein Yu