41f4f5ca-4d07-4b76-b8ed-8ac2739d57a6 English HELCOM Secretariat data@helcom.fi 2023-11-10T14:21:07 EPSG:3035 Seabed sediments (BALANCE) 2008 https://metadata.helcom.fi/geonetwork/srv/eng/catalog.search#/metadata/41f4f5ca-4d07-4b76-b8ed-8ac2739d57a6 Summary Marine seabed sediment split into 5 categories in the Kattegat and Baltic Sea (compiled from sediment information from GEUS, GSF and SGU). Description Marine seabed sediment split into 5 categories in the Kattegat and Baltic Sea (compiled from sediment information from GEUS, GSF and SGU). The sediment composition of the seabed is considered essential in marine landscape production as it is one of the primary parameters influencing the biogeographic distribution of marine benthic species and a primary component in shaping the physical structure and function of marine habitats. The resulting classification scheme consists of five sediment classes, which can be extracted from existing data. The sediment classes applied in the mapping and modelling of the Baltic Sea marine landscapes are: I. Bedrock. II. Hard bottom complex, includes patchy hard surfaces and coarse sand (sometimes also clay) to boulders. III. Sand including fine to coarse sand (with gravel exposures). IV. Hard clay sometimes/often/possibly exposed or covered with a thin layer of sand/gravel. V. Mud including gyttja-clay to gyttja-silt. For more details see: BALANCE Interim Report no. 10 "Towards marine landscapes in the Baltic Sea": http://balance-eu.org/xpdf/balance-interim-report-no-10.pdf HELCOM Secretariat data@helcom.fi Bio-geographical regions GEMET - INSPIRE themes, version 1.0 2008-06-01 geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme environmental data ocean sediment sea bed GEMET 2018-08-16 geonetwork.thesaurus.external.theme.gemet-en MADS biota MADS geoscientificInformation Baltic Sea Europe Continents, countries, sea regions of the world. 2015-07-17 geonetwork.thesaurus.external.place.regions Use constraints: Free for non-commercial purposes. Reference must be made to data source (BALANCE). Access constraints: No limitations on public access. English environment 2.80654 41.807265 50.978554 68.340172 2007-01-01 TIFF https://maps.helcom.fi/website/MADS/download/?id=41f4f5ca-4d07-4b76-b8ed-8ac2739d57a6 WWW:LINK-1.0-http--link Download dataset https://maps.helcom.fi/website/mapservice/?datasetID=41f4f5ca-4d07-4b76-b8ed-8ac2739d57a6 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 was produced by the BSR INTERREG IIIB project BALANCE. In order to produce the marine landscapes for the whole Baltic Sea large amounts of seabed sediment data were needed. The existing data, national and international, is numerous, but very diverse. Seabed sediment data was derived using different field techniques during the past decades. The seabed sediment maps from offshore and coastal areas exist in a wide range of scales from local (1:20.000) to regional (up to 1:1.000.000). Terminology and classifications vary as well, since 9 different Baltic Sea nations (and Norway) have interpreted their own data according to different national classification schemes. National seabed sediment classification categories needed to be harmonized in order to produce one classification scheme, which had to be as simple as possible, but still takes into account biological importance. The resulting classification scheme consists of five sediment classes, which can be extracted from existing data. The sediment classes applied in the mapping and modelling of the Baltic Sea marine landscapes are: I. Bedrock. II. Hard bottom complex, includes patchy hard surfaces and coarse sand (sometimes also clay) to boulders. III. Sand including fine to coarse sand (with gravel exposures). IV. Hard clay sometimes/often/possibly exposed or covered with a thin layer of sand/gravel. V. Mud including gyttja-clay to gyttja-silt. 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 more details see: BALANCE Interim Report no. 10 "Towards marine landscapes in the Baltic Sea": http://balance-eu.org/xpdf/balance-interim-report-no-10.pdf