Water Data Portals: An Annotated List

	A	B	C	D	E	F
1	Name	Scale	Scope	Link	Description	Data types
2	CEH Data			http://www.ceh.ac.uk/data	Long‐term, national‐scale data provided by the Centre forEcology and Hydrology (UK)
3	CUAHSI Data Services	National	US	https://www.cuahsi.org/dataservices	Data provided by the Consortium of Universities for the Advancement of Hydrologic Science (US)
4	eartH2Observe Water Cycle Integrator(WCI)			https://wci.earth2observe.eu/	The WCI portal takes data that you select and plots it on amap to help you analyse, export and share it.
5	Eawag NADUF	National	CH	http://www.eawag.ch/en/department/wut/main‐focus/chemistry‐of‐water‐ resources/naduf/	Long term data series collected as part of the program“National Long‐Term Surveillance of Swiss Rivers” (NADUF).
6	European Environment Agency Water Data Centre	Regional	EU	http://www.eea.europa.eu/themes/water/dc	European entry point for water related data as part of theWater Information System for Europe (WISE).
7	FAO Aquastat	Global		http://www.fao.org/nr/water/aquastat/main/index.stm	FAO’s global water information system, developed by theLand and Water Division
8	Freshwater Information Platform	Global		http://www.freshwaterplatform.eu/	A platform offering links to data, maps, tools and otherresources relating to freshwater resources and their biodiversity.
9	GEOSS portal	Global		http://www.geoportal.org/	Entry point for earth observation data implemented andoperated by the European Space Agency. (Note that most data are not water‐related.)
10	Global Environmental Monitoring System– Water	Global		http://web.unep.org/gemswater/	GEMS/Water works to: ensure water quality data flows from a world‐wide network, maintain the global water quality database (GEMStat), and enable countries to deliver authoritative data through capacity development.
11	Global Mercury Observation System	Global		http://www.gmos.eu/sdi/	The GMOS Spatial Data Infrastructure (SDI) was developedin order to assure a timely and up‐to‐date sharing of information on mercury in the environment, including humans. (Note that most data are not water‐related.)
12	Global Rivers Observatory	Global		http://www.globalrivers.org/	The Global Rivers Observatory (led by the Woods Hole Research Center and the Woods Hole Oceanographic Institution) investigates river chemistry in Earth’s most significant river systems. It is active in 18 watersheds around the world and measures the chemical composition of rivers near their entry points to the ocean.
13	Groundwater Assessment Platform	Global		http://www.gapmaps.org/gap.protected/	Mapping and information platform for geogenic groundwater contamination
14	HydroBASINS	Global		http://www.hydrosheds.org/page/hydrobasins	Global river basin/catchment dataset, derived from HydroSHEDS and codified using Pfaffstetter. Two versions (one with lakes, one without) available.
15	HydroLAKES	Global		http://www.hydrosheds.org/page/hydrolakes	A database provided by WWF that seeks to provideshoreline polygons for all global lakes with a surface area of at least 10 ha with some ancillary data.
16	HYdrological Predictions for theEnvironment (HYPE)			http://hypeweb.smhi.se/	Modeled Open Data for inspection and free download from multi‐basin and large‐scale applications of the HYPE model world‐wide provided by the Swedish Meteorological and Hydrological Institute.
17	HydroSHEDS (Hydrological data andmaps basedonSHuttleElevationDerivatives atmultipleScales)	Global		http://www.hydrosheds.org/	HydroSHEDS is a mapping product that provideshydrographic information for regional and global‐scale applications in a consistent format. It offers a suite of geo‐ referenced data sets (vector & raster) at various scales, including river networks, watershed boundaries, drainage directions, and flow accumulations. HydroSHEDS is based on high‐resolution elevation data obtained during a SpaceShuttle flight for NASA's Shuttle Radar Topography Mission.
18	International Hydrological Programme’sWater Information Network System			http://ihp‐wins.unesco.org/	Entry point to water resources and data from UNESCO’sInternational Hydrological Programme
19	IWMI Water Data Portal			http://waterdata.iwmi.org/	Entry point provided by the International WaterManagement Institute for a large amount of data related to water and agriculture, including meteorological, hydrological, socio‐economic, spatial data layer, satellite images as well as hydrological model setups.
20	IWRM Data Portal (UNEP‐DHI)			http://iwrmdataportal.unepdhi.org/	This data portal offers a comprehensive collection of national IWRM implementation progress data drawn from two global country IWRM progress surveys.
21	Joint Research Centre Water Portal		EU	http://water.jrc.ec.europa.eu/waterportal
22	Jupiter (Denmark's geological and hydrological database)	National	DK	http://www.geus.dk/UK/data‐maps/jupiter/Pages/default.aspx	Jupiter is GEUS’ nationwide database for groundwater, drinking water, raw materials, environmental and geotechnical data. The database is the common public database within the field and is part of Denmark's Environment Portal.
23	Open Water Data Initiative	National	US	https://www.fgdc.gov/initiatives/open‐water‐data‐initiative	Maintained by the US Federal Geographic Data Committee,the OWDI seeks to integrate currently fragmented water information into a connected, national water data framework by leveraging existing systems, infrastructure and tools to underpin innovation, modeling, data sharing, and solution development.
24	Swiss Federal Office of the Environment(FOEN) – topic water	National	CH	https://www.bafu.admin.ch/bafu/en/home/topics/water.html	Entry point for information on flow, monitoring data, statusof water bodies, groundwater data
25	Swiss Federal Office of the Environment(FOEN) – Water: Monitoring Data	National	CH	https://www.bafu.admin.ch/bafu/en/home/topics/water/state/data.html	Entry point for information on monitoring data and statistics
26	USGS Water Data for the Nation	National	US	https://waterdata.usgs.gov/nwis	Entry point provided by the US Geological Survey for dataon water flow and levels, water quality and water use data in the US.
27	Water Information System for Europe	Regional	EU	http://water.europa.eu/data‐and‐themes	The Water Data Centre, hosted at the European Environment Agency (EEA), provides a central access point to several web‐services: interactive maps, data viewers, European datasets and indicators. The WaterStatistics website, hosted at Eurostat, gives access to the results of the reporting from countries to the Eurostat/OECD Joint Questionnaire on Inland Waters.
28	Water Isotope System for Data Analysis,Visualization, and Electronic Retrieval			http://www‐naweb.iaea.org/napc/ih/IHS_resources_isohis.html	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).
29	WHO/UNICEF Joint MonitoringProgramme for Water Supply andSanitation	Global		https://www.wssinfo.org/	Entry point for data files and country reports for datacollected to support the MDGs on water and sanitation and for data to be collected for SDG 6.1 and 6.2.
30	WMO Hydrological Observing System	Global		http://www.wmo.int/pages/prog/hwrp/chy/whos/	WHOS is the portal to the online holdings of NationalHydrological Services (NHS) around the world that publish their historical (OBS) and/or real‐time (RT) data without restrictions or cost. It represents the hydrological component of the WMO Integrated Global Observing System (WIGOS).
31	World Hydrological Cycle Observing System	Global		http://www.whycos.org/whycos/	WHYCOS is a framework programme of the WMO dedicated to improving basic observation activities, strengthening international cooperation and promoting the free exchange of data in the field of hydrology.
32	UNESCO IHP Water Information Network System	Global		http://ihp-wins.unesco.org/	A recently launched map-focused data portal providing access to global water data sets
33	BOM Water Data Online	National	AU	http://www.bom.gov.au/waterdata/	Water level and discharge data for Australia
34	WMO Global Runoff Data Centre	Global		http://www.bafg.de/GRDC/EN/Home/homepage_node.html	Data centre under the auspices of the WMO collecting river discharge data from more than 9000 gauging stations worldwide; data only accessible on written request for non-commercial scientific use
35	UNESCO/WMO IGRAC Global Groundwater Information System	Global		https://www.un-igrac.org/global-groundwater-information-system-ggis	Groundwater information system of the International Groundwater Resources assessment Centre	Groundwater
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