2023-09-18 ET-W2AT Meeting
 Date
Sep 18, 2023 13:00-15:00 UTC
 Participants
ET-W2AT
No | Name | Role | Present (yes/no) |
---|---|---|---|
1 | Mr Jeremy TANDY | Chair | No |
2 | Mr Rémy GIRAUD | Member | Yes |
3 | Mr Pablo Jose LOYBER | Member | No |
4 | Ms FATIMA SABAI | Member | No |
5 | Mr Peng WANG | Member | No |
6 | Mr Tom KRALIDIS | Member | Yes |
7 | Mr Kenji TSUNODA | Member | No |
8 | Dr Baudouin RAOULT | Member | Yes |
9 | Mr Thorsten BÃœSSELBERG | Member | No |
10 | Ms Dana OSTRENGA | Member | Yes? |
Experts
Wirt Kai-Thorsten (DWD)
Simon Elliott (EUMETSAT)
WMO Secretariat
Hassan Haddouch
@Xiaoxia Chen
David Berry
Maaike Limper
 Discussion topics
Item | Item | Presenter | Notes |
---|---|---|---|
1 | Review of actions from the last meetings | Hassan | Hassan summarized all the actions from the previous meetings on June 26 and September 4 and updated the progress on them.
Action: (Hassan(to write an asciidoc describing why and how elements: wis2-guide/Notification-mechanism-updated-data.adoc at transition · wmo-im/wis2-guide · GitHub Tom presented an alternative solution discussed in the WIS metadata task team using the relation link rather than the properties. Tom will present more details and all to think about and the decision will be taken in a next meeting
Action: (Remy): to check with VerneMQ for their advice to selecting the parameters: Mr André from VerneMQ presented the MQTT basics and QoS ET-W2AT meeting-20230904_150114-Meeting Recording.mp4 (sharepoint.com) Action:(Peng): to discuss with EMQX experts for possible suggestions about the parameter’s selection Remy summarize the presentation made in two weeks by the boss of VerneMQ. an asciidoc to be prepared on the MQTT features all are requested to view the presentation record to decide on that in the next meeting the link of the presentation will be shared with the participants
Action (Kenji) : JMA to check internally if JMA will provide the GTS2WIS2 Gateway Action (Hassan): to develop an asciidoc: wis2-guide/GTS2WIS2-Gateway.adoc at transition · wmo-im/wis2-guide · GitHub Tom propose to have this details on transition document not in guide to WIS Tom informed that the GTS in WIS2 impact the MQTT Explorer (difficult to show all the topics) Remy, dislike to change a decision made in a previous meeting except if there is a good reason of that. A limitation of a tool like MQTT Explorer is not a good reason Kai, we need to consider the need of subscribing to everything under cache/a/ WIS2/# and if GTS should be a part of that or not Remy, I don’t think that someone is subscribing to cache/a/wis2/#, and if it’s the case they will get the messages and then skip them the decision is to keep this as we agreed in the previous meeting and include the gts properties in the asciidoc
Action (Hassan): to develop asciidoc: wis2-guide/WIS2-to-GTS-Gateway.adoc at transition · wmo-im/wis2-guide · GitHub Action (Secretariat) to identify some RTHs to run the gateway: Brazil, China and UK announce their intention to provide this gateway  |
 |  | discussion |
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2 | "merging" country and centre-id into one unique name | All | Tom gave an overview of this topic discussed in TT-WISMD on proposal for adapting WTH to merge country and centre-id. He presented the issues with the country as follow:
the proposal is to remove Discussions raised about countries not having their proper domain Kai, proposed to not use the domain name, it’s a centre-ID not domain name Baudouin asked about how users will know the provider of data Tom, they will get it from the discovery metadata Kai, asked about the possibility of reuse of the WMO country profile database Maaike, the registration of WIS2 has been discussed and as option will consider the option of using the CPDB Kai proposed, when a member asked for WIS2 registration, secretariat will propose the center-ID Remy, need to have a sort of agreement between WMO and a Centre. If the center had a domain name it will be used as proposed by Tom, if not an agreement with Secretariat is needed to agree on the center-ID ( the Centre name used at national level can be used) Remy, the use of dot (fr.meteo) is it a problem? or shall we go for dash (fr-meteo) Kai, it’s better to go to a safe solution, dash is a good alternative and will remove the ambiguity with the domain name Baudouin, if we are not using the domain shall we go for ECMWF without int nor gov Remy, to ease the meaning when defining the center-ID, if a Centre have a domain we will use it for example int-gov-ecmwf Simon, mentioned that a similar nomenclature has been used in the manual on GTS Tom, we will review that and if we found it as valuable notation we will reuse it Action: Tom to open a issue on the TH to come up with a convention to discuss in the next meeting  |
3 | Lifecycle management of discovery metadata in WIS2Â https://github.com/wmo-im/wis2pilot/issues/85 | Â | Tom presented the issue concerning the lifecycle management of discovery metadata and presented two options 1. GDC Unpublish workflow
Impacts:
2. Mark as "archived" workflow
Impacts:
Discussion
|
WIS2 node backup | Â | Â | Hassan introduced the request from Members of having a backup WIS2 node for sustainability. Et agreed to discuss this topic in the next FTF meeting in Washington |
 Action items
 Decisions
- Notification mechanism on updated data: two solutions (with operation property vs no operation property but with a relation link) to be decided
Next meeting
16 October 2023