[TT-NWPMD] Task Team on NWP Products Metadata

In order to improve the discoverability and accessibility of GDPFS products, the Secretariat initiated the development of GDPFS Web Portal in 2021. During the development of the Web Portal, many issues on the discovery metadata relating to GDPFS products have been identified, which hinder best use of the many available GDPFS products. In particular, the metadata of most GDPFS products is not comprehensive or consistent across the different producing centres.

The recent WMO Extraordinary Congress adopted the WMO Unified Policy for the International Exchange of Earth System Data (Resolution 1 (Cg-Ext(2021))). The Commission for Observation, Infrastructure and Information Systems (INFCOM) is requested to implement the WMO Unified Data Policy and one important outcome is broader and easier access to high-quality numerical weather prediction (NWP) and analysis products for Members. Draft lists of core data on NWP outputs were presented to INFCOM-2 (Oct 2022).

Taking into account that RSMCs are requested to provide core data on NWP outputs and WIS is evolving to WIS 2.0, SC-ESMP established this task team to define metadata specifications and WIS 2.0 structure for NWP products. The task team is having its first meeting on 24-26 January 2023.

The meeting report is available here.

TENTATIVE WORKPLAN

Note: all times in CET (UTC+1)

Meeting Room: Lake 7 (on 7th floor), WMO headquarters, Geneva, Switzerland

Tuesday, 24 January 2023, click here to join on Microsoft Teams

Time	Agenda Item	Presenter/ Agenda item
09:00-09:20	Arrival
09:20-09:40	Opening Organization of the meeting	Sebastien Villaume/ 2.1; 2.2
09:40-10:10	Round table introduction	TT members
10:10-10:40	Introduction of GDPFS WMO Unified Data Policy and “core data” to be provided by GDPFS centres	The Secretariat/ 3.1; 3.2
10:40-11:20	Development of GDPFS Web Portal and issues on data discoverability and accessibility	The Secretariat/ 3.3
11:20-12:00	Introduction of WIS 2.0	The Secretariat (Enrico or Hassan)/ 3.4
12:00-13:30	Lunch break
13:30-15:30	Brief presentations by all TT members (10 minutes each) on Overall structure, workflow and operating picture of the WMC in term of how NWP data are organised and distributed to consumers; NWP data’s directory structure for data exchange; A list of parameters to be disseminated on WIS2, and how to structure and name these parameters; If already being discussed, the plan of disseminating NWP core data and other parameters on WIS2 (e.g. samples of WIS2 metadata, ideas on topic hierarchy structure, timeframes etc.) [Suggested template and key points of presentation]	All TT members/ 6.1 WMC Beijing WMC ECMWF WMC Exeter WMC Melbourne WMC Montreal WMC Moscow WMC Offenbach WMC Tokyo WMC Washington
15:30-16:30	Introduction of WMO Core Metadata Profile version 2 (WCMP2), WIS2 topic hierarchy and WIS2 catalogue, with a focus on NWP data and products	Tom Kralidis/ 3.5
16:30-17:30	Topic hierarchy for NWP products Weather (global deterministic and ensemble NWP) Climate (global subseasonal to long-range prediction, climate reanalysis) Core data products not in grib (e.g. TC tracks and pictorial products)	Sebastien Villaume/ 4.1 [intro (Secretariat)]

Wednesday, 25 January 2023, click here to join on Microsoft Teams

09:00-11:00	Discussions on codelists and controlled vocabularies for GDPFS products Controlled vocabularies for parameter name, pressure level, time step, etc. The possibility to have a codelist based on the GRIB Parameters Database (ECMWF)	/ 4.2
11:00-12:00	Procedures to maintain codelists for metadata and topic hierarchy	The Secretariat (Anna)/ 4.5
12:00-13:30	Lunch break
13:30-15:30	Adaptation of WCMP2 for NWP products	Julia Sieland/ 4.3
15:30-17:30	Discussions on NWP products metadata standard for WIS 2.0 Granularity Metadata model Codelists and controlled vocabularies Core data products not in grib (e.g. TC tracks and pictorial products)	/ 4.4

(After the second day meeting, TT members are invited to have a dinner together with the Secretariat in the evening.)

Thursday, 26 January 2023, click here to join on Microsoft Teams

09:00-11:00	Best practices for NWP products topic hierarchy structure and metadata creation Draft outline of contents Authors	/ 5.1
11:00-12:00	Tools for NWP products metadata creation	/ 5.2
12:00-13:30	Lunch break
13:30-15:00	NWP products metadata key performance indicators (KPIs) (KPIs associated with the performance of the discovery function of a catalogue)	Julia Sieland / 5.3
15:00-16:00	Work plans and action items
16:00-16:30	AOB
16:30-17:00	Closing	Sebastien Villaume

[TT-NWPMD] Task Team on NWP Products Metadata

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