TT AvData Teleconference 2023 Sep 26

Details

2023-Sept-36, 12:00-13:30 UTC, Microsoft Teams

Welcome
Review agenda
Secretariat update
- changes in WMO manuals related to WMO-No.49/ICAO Annex 3
Updates since last meeting (Team)
Discussion on the progress of schema development (Choy)
- Removal of IWXXM representations involving TAC element "Supplementary information/State of the runway" (#325).
  - Other decision: What are we going to do with examples metar-EDDF-runwaystate.xml and metar-LKKV.xml.
- Relaxation of TAC constraints on IWXXM (#309).
- Develop Volcano Observatory Notice for Aviation (VONA) by State Volcano Observatories (SVO) (#305)
  - Other decision: Proposed new entry to WMOCategoryCode - volcanoObservations
  - Other decision: Proposed new entry to code list - http://codes.wmo.int/49-2/MeteorologicalFeature/VOLCANIC_ASH
- Add information on Quantitative Volcanic Ash (QVA) clouds (#306).
  - Other decision: Proposed new entry to WMOCategoryCode - volcanoForecasts
  - Other decision: Whether it is good to have both iwxxm:ashDensityCategory and iwxxm:ashDensityEqualsOrExceeds as they contain similar information.
- Questions for WG-MOG on IWXXM VONA and QVACI
Information on WG-MRAD's request to update Table 4678 in WMO No.306 Vol. I.1, and the subsequent need to update the code list and WMO Codes Registry. Do we want to take this opportunity to form a team to review code lists being used by IWXXM?

Choy opened the meeting
Anna talked about the impact of Resolution 12 (Cg-19) on IWXXM and recommends replacing all references to WMO-No. 49 in the 2024 release; the team agrees that previous versions of IWXXM should not be updated; Choy noted that the codes registry needs a full review;
Choy presented some of the changes based on TAC relaxations
Choy presented some options for updating IWXXM examples of the TAC and IWXXM examples for capability demonstrators
1. remove it completely
2. update into latest version and keep it in the examples directory
3. update but move to iwxxm-translation repository in GitHub
Choy presented options for VONA using the weather object (WxObject) approach (https://github.com/wmo-im/iwxxm/issues/305)

TBD