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Sustainable access to river discharge data in a long-term perspective

Established in 1988 to support the research on global and climate change, and integrated water resources management, the GRDC has been acting for thirty years successfully as a facilitator between the producers of hydrologic data and the international research community. The Centre acts as a contact point for international organisations, programmes and projects as well as research centres and universities.

Currently the Global Runoff Database contains time series of daily and/or monthly river discharge data of nearly 9,500 stations from 160 countries, comprising around 415,000 station-years with an average record length of 44 years. The earliest data are from the year 1807, the most recent from the year 2018. The database is updated as soon as data are supplied by the national hydrological services, our primary data providers.

GRDC generates data products based on its data collection, for example the Long-term Mean Monthly Discharges and the Surface Freshwater Fluxes into the World's Oceans. We provide a number of GIS layers for generation of map products. All data, data products, and GIS layers can be obtained for non-commercial uses under the conditions of GRDC's data policy.

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