Water data sources in Germany

Undine flood information portal of the German Federal Institute of Hydrology providing comprehensive historical flood data and long-term hydrological time series for major German...

Free | National

Real-time and historical water level, discharge, and temperature data from over 500 gauging stations across Germany's federal waterways, operated by the Federal Institute of...

Free | National

Cross-network German portal linking to hydrological yearbooks (officially verified water level and discharge data and hydrological parameters) for nine major river basins, plus...

Free | Germany

German Weather Service water management system providing radar-based precipitation estimates, forecasts, and snowmelt data for flood forecasting authorities

Limited | Germany nationwide

North Rhine-Westphalia water information system displaying and evaluating data on wastewater, groundwater, surface water, drinking water and Water Framework Directive monitoring...

Free | North Rhine-Westphalia, Germany

GDI-DE Geonetwork metadata record for the WHYMAP Groundwater Resources of the World dataset, exposing the direct shapefile download (WHYMAP_GWR_v1.zip) and BGR geoservice for...

Free | Global

Umweltbundesamt water data and Wasserrahmenrichtlinie

Free | German federal water data

Joint federal-state flood information portal of Germany's regional flood forecasting centres, providing current water levels, flood warnings and gauge data across German river...

Free | Germany

Official Bavarian hydrological service portal with downloadable time series for river discharge, water level, river chemistry/biology, lake levels, groundwater levels, springs and...

Free | Bavaria, Germany

Bavaria's official hydrological service portal. Provides river water levels, discharge/runoff, water temperature, suspended sediment, lake levels, groundwater and meteorological...

Free | Bavaria, Germany

Bavaria's hydrological survey provides river, lake and groundwater chemical and biological water quality parameters plus water temperature and suspended sediment, with a download...

Free | Regional (Bavaria)

Global Precipitation Climatology Centre (GPCC, operated by DWD under WMO) open download gate for global monthly and daily gauge-based gridded precipitation products at 0.25-2.5...

Free | 1891-present, monthly/daily

BGR application providing current groundwater levels plus AI-supported short-term (3-month), medium-term (10-year) and long-term (to 2100) groundwater level forecasts for...

Free | National

Operational flood information service for Bavaria run by the LfU. Shows ~400 gauging stations across the Danube, Main, Inn, Isar, Regen and Naab river systems with current water...

Free | Bavaria, Germany

North Rhine-Westphalia flood and hydrology portal operated by LANUV. Displays real-time water level, water temperature and precipitation from flood-warning gauges, hydrological...

Free | North Rhine-Westphalia, Germany

Hydrometeorological 1 km gridded daily precipitation dataset for Germany (HYRAS-DE-PR), 1931-present, replacement for REGNIE, used for climate analysis, bias adjustment and...

Free | Germany

State Office (LANUK, formerly LANUV) of North Rhine-Westphalia water information systems entry point, including ELWAS-WEB for viewing, evaluating and exporting water-management...

Free | North Rhine-Westphalia, Germany

North Rhine-Westphalia State Office for Nature, Environment and Climate online groundwater data service providing groundwater level and quality measurements from the state...

Free | North Rhine-Westphalia, Germany

Baden-Württemberg State Institute using Sentinel 2/3 satellite data for water quality monitoring of 260+ water bodies

Free | Baden-Württemberg state (260 water bodies)

Lower Saxony water management agency gauge portal publishing 15-minute water levels and flood warning data for inland and tidal gauges on rivers such as the Aller, Leine, Oker...

Free | Lower Saxony, Germany

Open data release of quality-controlled water level (Wasserstände) time series from North Rhine-Westphalia's hydrological monitoring network, published on the State of NRW open...

Free | North Rhine-Westphalia, Germany

DWD radar-based reprocessed precipitation climatology for Germany on a 1 km polar-stereographic grid (gauge-adjusted RW and 5-min YW products), 2001-present.

Free | Germany

Lower Saxony environmental portal aggregating searchable environmental and hydrological datasets, including gauge water-level time series and groundwater data from state...

Free | Lower Saxony, Germany

North Rhine-Westphalia environmental portal flood and heavy-rain information showing online measurement data from flood-reporting gauges, hydrological gauges and precipitation...

Free | North Rhine-Westphalia, Germany

BGR's interactive World-wide Hydrogeological Mapping (WHYMAP) web viewer providing layers on groundwater resources, vulnerability, karst aquifers, river/groundwater basins and...

Free | Global

CAMELS-DE: hydro-meteorological observations and catchment attributes for 1,582 German catchments (5-15,000 km²), up to 70 years of daily meteorological and discharge data, plus...

Free | 1,582 catchments (Germany)

DOI-referenced deposit of the CAMELS-DE large-sample hydrology dataset (1582 German catchments, daily hydro-meteorological time series and catchment attributes) in RADAR4KIT, the...

Free | 1582 catchments, 1951-2020

Open processing-pipeline documentation for CAMELS-DE describing how the 1582-catchment German streamflow and water-level dataset is assembled from DWD meteorology and federal...

Free | 1582 German catchments, 1951-2020

National large-sample dataset for Germany: daily hydro-meteorological time series (up to 70 years, 1951-2020) and harmonised static catchment attributes (topography, soils, land...

Free | 1582 catchments, 1951-2020

Global river hydrochemistry database with 1.27 million samples at ~17,000 sampling locations, covering major ions, nutrients (N, P, Si), organic/inorganic carbon, alkalinity, pH...

Free | Global

Direct download center for the MIRCA2000 global monthly irrigated/rainfed crop area grids, condensed crop calendars, and harvested area grids for hydrological and agricultural...

Free | Global

HydroSat provides geometric quantities of the global water cycle from spaceborne geodetic sensors: water level from altimetry, surface water extent from imagery, terrestrial water...

Free | Global

Integrated Climate Data Center curated access to many precipitation products (GPCC, GPCP, IMERG, MSWEP, PERSIANN, RADOLAN, TAMSAT, OceanRAIN) with OPeNDAP and visualization.

Free | Global

University of Hamburg Integrated Climate Data Center hub for satellite land/water datasets: ASCAT, AMSR-E, SMOS and ESA-CCI soil moisture, GlobSnow snow water equivalent, and lake...

Free | Global

Integrated Climate Data Center (University of Hamburg) access page for JMA's JRA-55 global reanalysis (1958-2023) including precipitation and surface variables, with documentation...

Free | 1958-2023

University of Hamburg ICDC mirror and documentation of TAMSAT African daily/pentadal/monthly satellite rainfall estimates with direct file access for hydrometeorological...

Free | 1983-present

Integrated Climate Data Center global ASCAT (MetOp) C-band surface soil moisture (top 2-5 cm) at ~0.1 degree resolution, 2007-2024, as daily 5-day composites and monthly...

Free | Global

Goethe University Frankfurt global dataset of monthly irrigated and rainfed crop areas around year 2000 at 5-arc-minute resolution for 26 crop classes, with condensed crop...

Free | Global

Alfred Wegener Institute sea-ice portal serving CryoSat-2 radar-altimetry-derived sea-ice freeboard, thickness and snow depth products plus combined ICESat-2/CryoSat-2 datasets...

Free | Polar / Global

Comprehensive hydro-meteorological dataset for 1555 streamflow gauges with 70-year time series (1951-2020), addressing Germany's decentralized data management

Free | Germany nationwide - 1555 catchments

Authoritative G3P release from GFZ Potsdam: gridded global groundwater, TWS, glacier, snow, soil moisture and surface water anomalies (0.5 deg, monthly, Apr 2002-Sep 2023) as...

Free | Global (excl. Greenland/Antarctica)

GFZ Helmholtz Centre portal serving GRACE/GRACE-FO Level-3 mass-anomaly products: groundwater, soil moisture, snow water equivalent, surface water and terrestrial water storage...

Free | Global

Global river discharge data center with 8000+ stations worldwide, established at German Federal Institute of Hydrology

Free | Global (operated from Germany)

GFZ Information System and Data Center (ISDC) open file repository hosting the gridded NetCDF files of the Global Gravity-based Groundwater Product (G3P v1.12), monthly global...

Free | Global

Global Peatland Database hosting the Global Peatland Map 2.0 (5.8 million km2 peatlands, freely downloadable 1x1 km grid) and the European Wetland Map (vector geodatabase +...

Free | Global

Globally seamless 90 m hydrographic network derived from MERIT Hydro, with stream channels, topographic and topological attributes.

Free | Global (hosted in Europe)

W5E5 v2.0 global daily 0.5 degree bias-adjusted climate forcing dataset (WFDE5 over land merged with ERA5 over ocean, 1979-2019), the observational input for ISIMIP3a, distributed...

Free | 1979-2019, 0.5 degree daily

GFZ International Centre for Global Earth Models provides comprehensive gravity field models from GRACE, GRACE-FO and other missions, with tools for computing geoid heights and...

Free | Global

Compilation of historical streamflow records from multiple national agencies providing daily discharge time series for thousands of stations with many records exceeding 100 years.

Registration Required | Global

Dataset of continental freshwater discharge to the world's oceans derived from GRDC station data, providing monthly estimates for major river basins and coastal segments globally.

Free | Global

Computed long-term mean monthly discharge statistics from GRDC stations worldwide, useful for water availability assessments and hydrological modeling without requiring...

Free | Global

Compiles results from over 3,000 scientific publications on marine litter and microplastics, presented in interactive global maps and infographics.

Free | Global, 3,000+ publications, 1,472 taxa affected

NFDI4Earth Living Handbook showcase documenting the CAMELS-DE German hydrometeorological dataset, its FAIR data-publication workflow, structure and access to daily discharge and...

Free | 1555-1582 German catchments

The world's largest archive of river discharge data from over 10,000 stations in 161 countries. Hosted at the German Federal Institute of Hydrology in Koblenz.

Registration Required | Global

WMO/GCOS Global Terrestrial Network for Hydrology coordinating and linking global hydrological data products, including satellite-based water level (altimetry), soil moisture...

Free | Global

German Association of Energy and Water Industries statistics and 'Profile of the German Water Sector' reports covering drinking water supply, wastewater, prices and the VEWA...

Free | Germany

DLR free 90 m global Digital Elevation Model derived from TanDEM-X radar interferometry, including a Water Indication Mask (WAM) layer identifying water bodies during processing...

Free | Global