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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 : Connecting producers and users of hydrologic data

In-situ river discharge data with a few mouse clicks

The GRDC Data Download portal is for web-based selection and download of river discharge data collected by GRDC on behalf of the World Meteorological Organization (WMO). Calibrate your hydrological model, evaluate model results, or validate remote sensing data with in-situ data. With your data request and download you accept GRDC's Terms of Use and Data Sharing Conditions.

Map views support the usual zoom functions and selection tools. Hoover boxes, filters and search fields will help you find suitable stations. Table views with configurable columns allow a more detailed selection. Selection of several items is summarized into one download. Disable your previous selection before starting a new one.

To start a data download, select your subregion or stations of interest, click on the download button, complete the form, choose your preferred export format and agree to the terms of use and data sharing conditions. You will receive a confirmation and a request ID. A download link will be sent within 24 hours to the email address you entered. Please mention the request ID when making any inquiries about your download.

River discharge data are given in:

  • GRDC Export format (ASCII text),
  • WaterML2 format (XML, standard exchange format for hydrological time-series),
  • ZRXP exchange format (ASCII text, used between WISKI Systems).

Primary values and long-term statistics are given in GRDC Statistics format (ASCII text). Catchment polygons are provided as GeoJSON files. With your data request and download you accept GRDC's Terms of Use and Data Sharing Conditions.

GRDC Data Download

Contact GRDC: grdc@bafg.de

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