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30 years of connecting producers and users of hydrologic data

The exchange of hydrological data and information on a global scale is the principal reason for operating GRDC. The primary objective consists in supporting water and climate related programmes and projects of the United Nations, its specialised agencies and the scientific research community through the collection and dissemination of hydrological data across national borders in a long-term perspective. More : 30 years of connecting producers and users of hydrologic data

30th Anniversary of GRDC on 14 November 2018

GRDC stations with monthly data, indicated by time series end GRDC stations with monthly data, indicated by time series endGRDC stations with monthly data, indicated by time series end

On the day 30 years ago the Global Runoff Data Centre (GRDC) was established at the German Federal Institute of Hydrology (BfG).

River discharge data collected by the World Meteorological Organization (WMO) in the framework of the “First Global Atmospheric Research Program Global Experiment” in the ‘70s and early ‘80s and a compilation of monthly discharge data collected by UNESCO constituted the initial dataset of approximately 3500 stations.

Operating under the auspices of WMO the database of quality controlled “historical” mean daily and monthly discharge data continued to grow steadily and currently comprises river discharge data of more than 9500 stations from 161 countries.
The exchange of hydrological data and information on a global scale is the principal reason for operating GRDC. National Hydrological and Hydro-Meteorological Services as primary providers of river discharge data and associated metadata and the scientific research community utilising this unique data collection are partners connected by GRDC.

Increasing data supplies and rising numbers of data requests are reflecting a sound relation with data providers and users. This is a good basis for looking ahead with confidence to the continued operation of GRDC in a challenging environment.The GRDC is an international archive of data up to 200 years old, and fosters multinational and global long-term hydrological studies. Originally established three decades ago, the aim of the GRDC is to help earth scientists analyse global climate trends and assess environmental impacts and risks. Positioned as a facilitator for exchanges between data providers and data users, the GRDC has become a focal point for international cooperation. Researchers, universities and other organisations make use of the facilities available for research programmes and projects.

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