Water Data Portals
The Global Water Information Interest Group (GWIIG) of the Research Data Alliance focused on the organization, representation, publication, sharing, discovery, re-use, and integration of hydrologic information of different types. This effort resulted in the creation of a list of web portals and/or websites with data or links to data on water resources. The portals generally provide data that are at a minimum national in scope, and many of the portals offer global data.
The GWIIG requested that CUAHSI host this list to ensure permanence and wider distribution to the community. CUAHSI is continuously adding to the list based on community input. To suggest a web portal, please email email hidden; JavaScript is required.
Users can scroll through the list of portals below, or use the browse and search tools above.
The list is by no means comprehensive. Feedback or information regarding additional portals can be sent to email hidden; JavaScript is required.
Réseau des bassins versants (Network of Drainage Basins)
site owner:
Geographical Scope: selected regions (global)
French multi-disciplinary research network uniting the national efforts of several organisations that perform fundamental and applied studies on streams, rivers and their watersheds.
South Asian Surface Water Modeling System
site owner: University of Washington
Geographical Scope: South and Southeast Asia
A monitoring and forecasting system for surface water, weather, and climate for Indus, Ganges, Brahmaputra, and Mekong River basins.
Swiss Federal Office of the Environment (FOEN) – Topic Water
site owner: Swiss Federal Office of the Environment (FOEN)
Geographical Scope: Switzerland
Entry point for information on flow, monitoring data, status of water bodies, groundwater data
The Farm Platform Data Portal
site owner: Rothamsted Research
Geographical Scope: North Wyke in Devon, UK
The Farm Platform Data Portal contains data for the Farm Platform at North Wyke in Devon and makes this available to both Rothamsted staff and the wider research community. The Farm Platform is globally unique in that it can provide access to a range of in situstate-of-the-art instrumentation in hydrologically isolated catchments to better address key issues in sustainable agriculture.
Transboundary Waters Assessment Programme (TWAP) Data Portal
site owner: United Nations Environment Program (UNEP)
Geographical Scope: selected regions (global)
A tool to showcase and visualize the main indicator results of the Global Environment Facility Transboundary Waters Assessment Programme (GEF TWAP). It harvests the results and indicators from the water-system specific databases and provides access to the meta-data information.
USGS Water Data for the Nation
site owner: US Geological Survey (USGS)
Geographical Scope: USA
Entry point provided by the US Geological Survey for data on water flow and levels, water quality and water use data in the US.
USGS Water Services
site owner: US Geological Survey (USGS)
Geographical Scope: USA
Complementing the USGS Water Data for the Nation site, but serving water data via automated means with the REST protocol. Services include groundwater levels, water quality, streamflow and more.
Water Data Centre
site owner: European Environment Agency
Geographical Scope: Europe
European entry point for water related data as part of the Water Information System for Europe (WISE).
Water Data Online
site owner: Commonwealth of Australia, Bureau of Meteorology (BOM)
Geographical Scope: Australia
Australian Bureau of Meteorology online water data.
Water Isotope System for Data Analysis, Visualization, and Electronic Retrieval
site owner: International Atomic Energy Agency (IAEA)
Geographical Scope: global
WISER is a self-service platform for data of the Global Networks of Isotopes in Precipitation (GNIP) and Rivers (GNIR), hosted within the IAEA's repository for technical resources (NUCLEUS).