Datasets
92 hydrological datasets from 54 providers. Every entry links to the provider's own files and terms.
Global Discharge Stations
Daily and monthly river discharge from more than 10,000 stations
GRACE and GRACE-FO Mascons
Monthly terrestrial water storage anomalies since 2002
ASTER Global Water Bodies Database
30 m water body map produced with ASTER GDEM
DAHITI Water Levels
Satellite altimetry water levels for lakes, reservoirs and rivers
ESA CCI Soil Moisture
Daily 0.25° soil moisture from merged satellites since 1978
FLUXNET2015
Energy, water and carbon fluxes from 212 sites
G-REALM
Altimetry water level variations for large lakes and reservoirs
GHCN-Daily
Daily station observations from more than 100,000 stations
GLEAM v4
Daily 0.1° evaporation and its components since 1980
GPM IMERG Final Run
Half-hourly 0.1° precipitation from the GPM constellation
GSIM Global Streamflow Indices and Metadata
Streamflow indices and catchment boundaries for 30,959 gauges
Hydroweb.next
Altimetry water levels for rivers and lakes
IGRAC Global Groundwater Information System
Groundwater monitoring and transboundary aquifers
International Soil Moisture Network
Harmonised soil moisture from more than 70 networks
JRC Global Surface Water
30 m surface water occurrence and change since 1984
Landsat Collection 2 Level-2
30 m imagery since 1982 for long-term change
MODIS Snow Cover (MOD10A1)
Daily 500 m snow cover since 2000
ResOpsUS
Daily storage, inflow and release for 679 reservoirs
SMAP L3 Soil Moisture
Daily surface soil moisture from L-band radiometry
SWOT River and Lake Products
Water surface elevation, width and slope from wide-swath altimetry
Sentinel-2 Level-2A
10 m multispectral imagery every 5 days
USGS Water Data for the Nation
Real-time and historical streamflow for the United States