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BALTEX Hydrological Data

... a central feature of BALTEX (the Baltic Sea Experiment).

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.

map of stations in the Baltic Sea region GRDC Stations in the Baltic Sea region GRDC stations in the Baltic Sea region

Hydrological data relevant to BALTEX were collected at the BALTEX Hydrological Data Center (BHDC) operating at the Swedish Meteorological and Hydrological Institute (SMHI) since it's inception in 1995. Unitl 2015 BHDC collected data of daily and monthly discharges of around 600 stations in the Baltic Sea region. In 2015, the BALTEX Hydrological Dataset moved from SMHI to the GRDC in order to ensure sustainable operation and regular updates as an integral part of the Global Runoff Database. By release and on behalf of the National Hydrological Services, the former BALTEX stations and flow data are integrated in the Global Runoff Database.

GRDC currently holds river discharge time series data from 662 gauging stations in the Baltic Sea region with earliest records from 1807 and an average time series length of 49 years, with a range from 1 to 212 years. Access to data follows GRDC's data policy of free and unrestricted but identified access and is limited to non-commercial applications. Use the BALTEX Project Stations catalogue (original BALTEX project stations) to create your individual list of stations for download via GRDC Data Portal.

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