World Meteorological Organization

Purpose: develop a workplan for establishing global hydrological data centres as WMO centres (WIGOS/WIS/WIPPS), as requested through Decision 11 (INFCOM-3).
Working arrangements:
a. TT-GHyDaC will be chaired by a member of SC-ON, with one vice-chair, reporting to SC-ON and with liaise with the Hydrological Coordination Panel (HCP) through the Advisory Group on Hydrology (AG-Hydro) to make sure hydro community
needs are fulfilled.
b. TT will work in close collaboration with SC-IMT, SC-WIPPS and GCOS and with relevant bodies from SERCOM, e.g., Standing Committee on Climate Services (SC-CLI) Expert Team on Climate Data Development and Stewardship (ET-DDS).
c. TT will also work closely with other ETs and TTs from SC-ON when appropriate.
d. Members are identified by SC-ON chair in consultation with AG-Hydro chair.

ToR
1. Identify and organize the centers as WIGOS, WIS or WIPPS and address to WMO regulations and appropriate manuals for the operations of such centers
2. Liaise with SC-WIPPS for optimal alignment with hydrological WIPPS Centers.
3. Suggest a way forward to register global centers to WIGOS, WIS or WIPPS as appropriate. This may include new agreements with those centers
4. Summarize hydrological needs (e.g., EW4All, data rescue, WHOS, HydroSOS, capacity building, …) for WMO global hydrological data centers, based on priorities established by Decision 11 (INFCOM-3):
i. Improving interoperability and integration between data sets and products, to allow an integrated water-cycle approach, in close cooperation with relevant SC-IMT bodies;
ii. Acting as data backup for those NHSs and other organizations that do not yet have their own data backup system in place;
iii. Collaborating with the United Nations Environment Programme’s (UNEP) Global Environmental Monitoring System (GEMS) Water Programme and its GEMS/Water Data Centre, hosted by the German Federal Institute of Hydrology (BfG) and the
International Centre for Water Resources and Global Change (ICWRGC) UNESCO Category 2 centre to allow an integrated water quality/water quantity approach to global data collection and product dissemination;
iv. Providing input to HydroSOS and to the State of Global Water Resources reports;
v. Support the WMO training programme on hydrological data collection, data management, and QA/QC;
5. With the support of the Global Network of Terrestrial Networks - Hydrology (GTN-H) explore engagement with regional and global hydrological data centers that were not considered in the initial assessment (e.g., Global Network of Isotopes in
Precipitation (GNIP), Global Water Analysis Laboratory (GloWAL), …).
6. Identify needed functionalities expected from users and match with current duties from WIGOS, and WIS, or WIPPs centers, e.g.:
i. Provide solution for data sharing (serves as global/regional WIS 2.0 nodes?)
ii. Support to WSI and OSCAR registration
iii. Support RBON and GBON implementation as needed.
iv. Support data quality assessment
v. Support to data rescue efforts
vi. Advocacy for data monitoring and sharing
vii. Develop combined products from all centers
viii: Develop procedures for regularly providing the all identified centres with relevant data;
ix. Develop training and capacity building activities
7. Collaborate with SC-IMT in Identifying technical solutions for connecting data centers to WIS2.0/WHOS.
8. Examine opportunities of registration as GCOS centers.
9. With the support of TT-EarthHydroNet, TT-WIS2 for hydrology and AG-Hydrology, prepare an outreach and communication plan for fostering Members to regularly submit data to these centers.