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Special Datasets

Arctic Region Discharge Data

GRDC currently holds river discharge time series from 2625 gauging stations in the Arctic region with earliest records from 1877 and an average time series length of 41 years, with a range from 1 to 138 years.

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BALTEX Hydrological Data

BALTEX (the Baltic Sea Experiment) was launched in 1992 as a Continental-scale Experiment (CSE) of the Global Energy and Water Exchanges Project (GEWEX) within the World Climate Research Program (WCRP). The research focus of BALTEX was primarily on the hydrological cycle and the exchange of energy between the atmosphere and the surface of the Earth. The study region of BALTEX is the Baltic Sea and its huge catchment region.

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European Water Archive (EWA) of EURO-FRIEND-Water

The European Water Archive (EWA) has been a central feature of the EURO-FRIEND-Water Programme since it's inception in 1985 until October 2014. In October 2014 the EURO-FRIEND-Water meeting in Montpellier concluded that the EWA will no longer be updated and will be "frozen at its current state".

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Southern Africa Flow Database of SA FRIEND

The Southern Africa Flow Database, established between 1992 and 1997 to support rainfall-runoff modelling, contains flow time series data from about 815 stations across Southern Africa (SA). Initially hosted at the University of Dar es Salaam during the SA FRIEND Phase I and maintained by CEH in Wallingford in Phase II, the SA Flow Database is operated by GRDC since November 2010.

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Climate Sensitive Stations Dataset (Pristine River Basins)

The Climate Senstive Stations dataset comprises daily discharge data of more than 1,200 gauging stations identified by the National Hydrological Services as "climate sensitive" ones. The obtained data are considered appropriate for climate studies.

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Global Terrestrial Network for River Discharge (GTN-R)

The Global Terrestrial Network for River Discharge (GTN-R) is a 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 the mouth of the World's major rivers.

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GRDC Reference Dataset

The GRDC refeence dataset compiles time series of river discharge data of 718 stations of the GRDC database longer than 20 years, each capturing a basin area greater than 10,000 km² and representing a cell in a 2,5° grid cell coverage. The time series are updated regularly.

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