Meeting‐21‐07‐2025 - wmo-im/et-w2it GitHub Wiki

2025-07-21-ET-W2IT meeting

ET-W2IT members

No Name Role Country Presence
1 Jeremy TANDY Co-Chair UK Yes
2 Youssef Darari Co-Chair Morocco No
3 Zeinab Zakeri member Iran No
4 David Podeur member France No
5 Kentaro Tsuboi member, Japan Yes
6 Steve OLSON member USA Yes
7 Kai Thorsten Wirt member Germany No
8 Weiqing Qu member Australia No
9 Angelica Guterres member USA No
10 Tom Kralidis member Canada Yes
11 Jan OSUSKY member HMEI No
12 Wenjing Gu member China Yes
13 Pavel Tsukanov member Russia No
14 Eiji  TOYODA Observer Japan Yes

Invited experts

No Name Role Organization Presence
1 Rémy GIRAUD SC-IMT Chair Météo-France Yes
2 Lei XUE SC-IMT Co-vice-chair CMA Yes
3 Hyumin EOM GISC Seoul representative KMA Yes
4 Eiji Toyoda ET-W2IT observer JMA Yes
5 Kari Sheets GISC Washington representative NOAA Yes
6 José Mauro GISC Brasilia representative INMET Yes
7 Ping GUO GISC Beijing CMA No
8 Elena Arenskötter GISC Offenbach DWD Yes
9 Chems Eddine GISC Casablanca DGM No
10 Omar Mohammed Khalid GISC Jeddah NCM Yes
11 Max Marno Global Cache USA/UK Synoptics Yes
12 Xinqiang HAN GISC Beijing CMA Yes

WMO Secretariat

  • Enrico Fucile
  • Maaike Limper
  • Anna Milan

Agenda

Meeting Notes

On new GitHub project:

  • Jeremy presented the new GitHub project: WIS2 implementation & transition workplan
  • Anna suggested to add text to what "Done" means in the new GitHub project- Jeremy presented the new GitHub-project, Anna suggested to add some text to clarify what "Done" means On "Readiness for discovery metadata validation metadata validation":
  • Jeremy asked for "thumbs-up" if you think we are ready to implement the WCMP2 check on the Global Broker, no-one puts their thumbs up
  • Rémy comments the GB France is ready to implement the check but it would mean discarding 50% of the data being published due to large amount of WCMP2 missing
  • Maaike points out that the issue is not always that WIS2 Nodes are not making metadata but also that published metadata does not get cached in the GDC (it is discarded by GDC if WCMP2 is invalid)
  • Unknown centre-id can lead to WCMP2 being discarded, since the process of recording centre-id is not fully automated, it is possible for a registered WIS2 Node to have an unknown centre-id
  • WMO to have an updated checklist for new WIS2 Node to get centre-id in codes registry -before- asking GBs to subscribe, and asking WIS2 Node to republish metadata WIS2 Node after all GBs have confirmed they are subscribed
  • Maaike ask on advice on how data publishers check that their metadata is in the GDC or not ? Rémy says users should read the manual which explains how to query the GDC
  • Jeremy/Tom agree that Guide can be updated to say in the technical consideration of a WIS2 Node to recommend republishing the metadata on a daily basis
  • Rémy points out that the Global Monitoring dashboards indicate 100% missing metadata for several GISCs attending this ET-W2IT meeting and asks attendees to investigate
  • Tom requests WMO Secretariat to report how many WIS2 Nodes are using wis2box and which version
  • ET-WISOP (Xuelei) to share new report template for GISCs to help them focus on issues such as missing metadata On sensor centres:
  • there are 2 PRs one in the guide, one in the cookbook
  • Remy suggests Global Replay service and Sensor Centres are not part of the core WIS2 components that need to be in guide/manual. An additional document at the same level of the guide could be started to document additional WIS2 Services.
  • Remy presents document on Sensor Centres
  • Jeremy asks for comments on the concepts of Sensor Centres and the specific example presented by Remy
  • xq han shares system used by CMA to compares messages seen by different Global Brokers
  • Remy says he does not see the same numbers as reported by xq han, might be due to measuring from within local network
  • Max Marno asks if there is an intention of distribute sensor centres globally to measure at differences points in network. Answer is yes.
  • Discussion on GB sensor centre shows that this a useful addition
  • Intention to create more sensor centers than currently discussed
  • Jeremy proposes to define action to define registration process for adding new Sensor Centre
  • Remy says same process for testing Sensor Center using test infrastructure to validate Sensor Centre to be validated as was done for Global Services

Actions

  • Anna Milan to send suggestion for "Done" in the Kanban-board to Jeremy Tandy
  • Metadata validation support: recipe how to check metadata is published, recipe to receive monitor message for issues with WCMP2 from GDC, provide global replay service
  • Secretariat (Maaike) to analyze how many WIS2 Nodes are using wis2box (and optionally which version)
  • ET-WISOP to ask GISCs to report on issues with missing metadata for WIS2 Nodes in their AoR
  • Jeremy/Remy/Tom to work with Secretariat on proposed document for additional (non-core) WIS2 Services "Guide on WIS2 Supporting Services"