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Global Terrestrial Network for River Discharge (GTN-R)

...in support of GCOS and GTN-H

The Global Terrestrial Network for River Discharge (GTN-R) is the river discharge component of the Global Terrestrial Network - Hydrology (GTN-H) to support the Global Climate Observing system (GCOS) and the Hydrology and Water Resources Programme of the WMO (HWRP). The basic idea of the GTN-R project is to draw together the already available real-time discharge data provided by the National Hydrological Services (NHS) and to redistribute it in a standardised way. Core component is the GCOS Baseline River Network of gauging stations located near to the mouth of the World's major rivers. In cooperation with the Hydrological Services of the WMO Member States this network is constantly being extended by confirmation of additional stations. The GCOS Baseline River Network is a project in progress with a current status as of December 2014 of 245 gauging stations worldwide.

The GRDC contributes to the GTN-H by collection of discharge data and the operation of the GTN-R service. The GTN-R Web service was established to provide discharge data of the so-called GTN-R stations via the Geoportal of the German Federal Institute for Hydrology (BfG). As a first step, for the period 2000-2012 the daily means of river discharge at GRDC stations corresponding to the GCOS Baseline River Network are provided using a standard Sensor Observation Service (SOS).

map of gtnr stations provided for the GEOSS GTN-R Stations provided for the GEOSSGRDC Stations of the GCOS Baseline River Network provided for the GEOSS

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