2024-11-18-ET-W2IT Monday meeting

1. Gateway WIS2 to GTS

1.1 Work progress

Paul Nelson

UK update on the work progress

• a WIS2 to GTS gateway service operational ready now, using IBL’s moving weather software located in Met Office

• internal operational procedure is in the process, a need to understand more complex WIS2 to GTS scenarios

• Plan to move from the on-premises servers to the cloud based infrastructure, be ready in the first half year of 2025

Discussions

• Number of message (WIS2 message per hour per day) can be processed: Estimated, millions of bulletins.

• Business responding time of adding a WIS2 node for the configuration change: 3 weeks before mid 2025

• Peak capacity, to read from WNM to GTS message, how to manage to de-deduplicate messages from GB and GC: Test work was done

• (Hassan) GTS decommission timeline: We plan to involve one or two countries in testing the gateway by the end of February 2025. The actual decommissioning of the GTS systems is expected to take place no earlier than mid-June 2025

Lei XUE

China update on the work progress:

Shares the workflow of WIS2 to GTS gateway with examples.

• Core functions developed, operational readiness targeted for March 2025 based on the requirement.

• The function of sending metrics is under development.

Discussions

• Number of message (WIS2 message per hour per day) can be processed: Estimated, several millions of bulletins.

• Business responding time of adding a WIS2 node for the configuration change: 2 weeks.

1.2 Options to test the gateway  

Discussions

• Agreed to adopt formal test scripts for functional and performance evaluation of gateways, similar to the Global Services tests

• Decision: to do a formal test for WIS2 to GTS gateways scheduled for January-February 2025 to ensure operational readiness by March 2025.

• Both Gateway providers to provide the metrics of gateways for Global Monitor

Actions:

• Action: Max, Jeremy, Paul to have a separate call for discussion on gateway deduplication

• Action: Hassan, Paul, Lei, Jeremy to work on this test proposal.

• Action: Hassan to prepare the communication note for countries to decommission the GTS (ready in April 2025)

• Action: to make sure ET-WISOP participants read the Transition Guide which was officially published last week.

2. Assessment of the GTS2WIS2 Gateway 

Kai and Yori

Discussions:

(Kai) summarizes: a list of GTS headers was shared with JMA colleagues. Topic Hierarchy: origin/a/wis2/centre-id/data/core/T1/T2/A1/A2/ii/CCCC

Q1: how do you decide the data is core or recommended based on the GTS headers?

Q2: Any metrics provided for GM to scrape?

A2: We need to agree first for the GTS to WIS2 gateway metrics.

Q3: Two data objects are cached by both Gateways? How can we check the data completeness?

A3: Between Germany and JMA, they work their best to get all the data. If some Members found the data missing, they should contact WMO Secretariat for further investigation.

(Rémy) Proposes to add a topic item to ET-WISOP meeting to discuss with GISC to check that everything that is published in GTS is on WIS2 (through the GTS to WIS2 Gateway)

(Yori) The system is in operational mode now. Not all data via the Gateway. We will fix the problem to get all data on the gateway.

Q4: any channel to access the restricted data (recommended data)

A4: need to contact JMA.

(Rémy) (Core/recommended data): adding recommended data to the gateway topic is intended to address the limitations in access to aviation data. (metar data is currently recommended data, not core data).

Summary: to task GISC to coordinate with RTH in their AoR to check the data completeness

Summary: no formal test for GTS to WIS2 Gateway is to be scheduled

3. GTS to WIS2 transition 

   1. Review of the workflow 

   2. Metrics 

   3. Dashboards 

   4. KPIs 

To move to the next meeting