Add GAW variable TAG in the table: tables_en/1-01-01.csv

[sergimorenovalero]

Introduction

Rationale: The GAW Team at the Secretariat has noticed that the WMDR contains a large number of atmospheric variables (690), which can be confusing and make it difficult for users without advanced knowledge to identify the variables they observe or select the correct data to download. Purpose: To establish a set of variables that the GAW Programme can manage (with measurement guidelines, standards, and long-term expertise) and that are easily recognizable by a broad community. Implementation Plan: 1. Define the variables (ECVs + other GAW key variables). 2. Agree with the respective SAGs the selected variables. 3. Add the TAG 'GAW variable' in the table. 4. Add an extra step with the ECVs classification scheme: GHGs, Precursors, Ozone and Aerosols. Apart UV Radiation is also part of GAW, however the classification should hang from Radiation tree. 5. Apply the same tree to GAWSIS so the public can choose from the main areas (GHGs, Precursors, Ozone and Aerosols + UV Radiation) and also to the full list with 690+ entries. 6. Future implementation in the GAW WDCs.

Amendment details

https://wmoomm-my.sharepoint.com/:x:/g/personal/smoreno_wmo_int/EUxq87eHZlxNpAqARCT4JncBrVMlubiTLbgIAfnHEeC3IA?e=jZF1WW

Requestor(s)

Sergi Moreno and the GAW Secretariat.

Stakeholder(s)

GAW World Data Centres, Expert Team On Atmospheric Composition Data Management.

Applications or Systems

• [x] OSCAR/Surface
• [x] OSCAR/requirements
• [x] GAWSIS
• [ ] Radar/DB
• [ ] OceanOPS
• [ ] WHOS
• [ ] WDQMS
• [ ] GBON Compliance Monitor
• [ ] Other

Expected impact of change

None

Consultations

No response

Data exchange

No response

Comments

No response

[amilan17]

https://github.com/wmo-im/tt-wigosmd/wiki/Meeting.2025.03.20 notes:

• Sergio presented the proposal - noting that the GAW community is overwhelmed by the options for Atmospheric variables and would like to have a set of them tagged with GAW
• Joerg discussed some other options, perhaps separating the tree into core and recommended... needs more thought on how to implement and most of this is outside the work of TT-WIGOSMD
• Franziska pointed out that GAWSIS follows same structure of OSCAR/Surface

[nuneslf]

The amendment details file is not fully clear to me - there are many more variables under the GAW programme as compared to the list in the spreadsheet from Sergio. Although the principle of tagging variables by GAW areas merits being considered, it should be made clear what is the plan for its implementation in OSCAR/Surface, noting such tags should not be related to stations/variables affiliations to networks/programmes.