The aim of the GRDC is to facilitate and optimize the information exchange in surface water hydrology worldwide. The center works under the auspices of the World Meteorological Organization (WMO). The offered data are used in the field of climate research, water balances, regional and operational hydrology and issues of water quality and quantity. The GRDC works on the basis of an advanced database and processing facility, so that requests for data can be answered quickly and incoming data evaluated promptly. The GRDC database includes data from over 140 countries, from more than 3400 gauging stations in over 2900 river basins.
