10982458-8479-4f63-841d-1e11cb8dde3f English HELCOM Secretariat data@helcom.fi 2023-11-10T14:20:43 EPSG:3035 Modelled bottom current (BALANCE) 2008 https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/10982458-8479-4f63-841d-1e11cb8dde3f Summary Model results of the annual mean bottom current velocity (m/s). Description This dataset shows model results of the annual mean bottom current velocity (m/s). Data source, NERI/Denmark. Currents in the sea can be generated by many different parameters, among which are: I. Tidal motion II. Wind stress III. Density difference due to differences in salinity or temperature IV. Seismic activity and motion of the earth In near shore regions, the wave-induced along shore currents are the dominating currents, whereas in offshore regions, a combination of tidal and meteorological forces is the dominating current generating parameters. Near the sea bottom the friction of the current flow forms a turbulent layer, termed boundary layer, over the seabed. The thickness of this layer ranges from few meters up to several tens of meters. Within this layer the current speed increases nonlinearly with the height above the seabed, being zero at the seabed and maximum at the top of the layer. The variation of the current speed with height above the seabed is called current velocity profile. HELCOM Secretariat data@helcom.fi Oceanographic geographical features GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme ocean water bottom ocean current GEMET 2018-08-16 geonetwork.thesaurus.external.theme.gemet-en Baltic Sea Continents, countries, sea regions of the world. 2015-07-17 geonetwork.thesaurus.external.place.regions MADS Use constraints: Free for non-commercial purposes. Reference to source (NERI, BALANCE) must be given. Access constraints: No limitations on public access. English environment 3.738932 36.213599 52.125852 66.910348 2007-01-01 TIFF https://maps.helcom.fi/website/MADS/download/?id=10982458-8479-4f63-841d-1e11cb8dde3f WWW:LINK-1.0-http--link Download dataset https://maps.helcom.fi/website/mapservice/?datasetID=10982458-8479-4f63-841d-1e11cb8dde3f WWW:LINK-1.0-http--link Open in Map Viewer Commission Regulation (EU) No 1089/2010 of 23 November 2010 implementing Directive 2007/2/EC of the European Parliament and of the Council as regards interoperability of spatial data sets and services 2010-12-08 This dataset shows model results for the annual mean bottom current velocity (m/s). The map has been produced by NERI/Denmark for the BSR INTERREG IIIB project BALANCE. The model results were based on monthly averaged values from January 2003 and for one year. The bottom velocities show the largest values in the Danish Straits as well as the Kattegat and in the southern entrance to the Bothnian Sea. In order to be displayed in the HELCOM Map Service, the map coordinate system and projection was changed from original WGS1984_UTM34N to ETRS_1989_LAEA. For details on the model and the data sources, please refer to Bendtsen, J., Söderkvist, J., Dahl, K., Hansen, J.L.S. & Reker, J. (2007): Model simulations of blue corridors in the Baltic Sea. BALANCE Interim Report no. 9. Available at http://balance-eu.org/xpdf/balance-interim-report-no-9.pdf.