2023-09-18 ET-W2AT Meeting

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 BÜSSELBERG

Member

No

10

Ms Dana OSTRENGA

Member

Yes?

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.

• Notification mechanism on updated data

• 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

• Clarify broker protocol elements

• 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

• GTS to WIS2 Gateway

• 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

• WIS2 to GTS Gateway

• 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

• GTS to WIS2 Gateway

  • (Tom) it is good to keep this specification in the transition document, in the notification message specification document. MQTT explorer gets flooded by GTS to WIS2 gateway. Propose: to have a option , gts_to_wis2_gateway to be at higher level of topic hierarchy, e.g, in parallel to wis2 or higher

    • (Kai) gts_to_wis2_gateway can be set at any level as needed

    • (Rémy) Prefers the current proposal. When it is not possible to deal with the large amount of message notification by MQTT explorer, we need to consider changing the architecture.

    • Action: (Hassan) Merge GTS property and GTS to WIS2 Gateway provider jobs into one ascii doc.

2

"merging" country and centre-id into one unique name

All

3

Lifecycle management of discovery metadata in WIS2 https://github.com/wmo-im/wis2pilot/issues/85