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  • This dataset shows dumping areas in the Baltic Sea. The data from German territorial waters and EEZ was withheld from the dataset. This dataset was created and approved for publication by the HELCOM Expert Group on Environmental Risks of Hazardous Submerged Objects (EG Submerged). EG Submerged works to compile and assess information about all kinds of hazardous objects and assess the associated risks. The dataset was provided by Gunnar Möller (Mine Warfare Data Center (C MWDC), 4th Naval Warfare Flottilla, Berga, Sweden).

  • This dataset shows hazardous wrecks in the Baltic Sea. The data from German territorial waters and EEZ was withheld from the dataset. This dataset was created and approved by the HELCOM Expert Group on Environmental Risks of Hazardous Submerged Objects (EG Submerged). EG Submerged works to compile and assess information about all kinds of hazardous objects and assess the associated risks. The dataset was provided for the HELCOM Maritime Assessment published in 2018.

  • This dataset shows sea bottom risk areas for mines sunk in the World War II. The big areas in Danish and German areas as well as in the Gdansk Bay are British flight mine areas. This dataset was created by the HELCOM Expert Group on Environmental Risks of Hazardous Submerged Objects (SUBMERGED). SUBMERGED works to compile and assess information about all kinds of hazardous objects and assess the associated risks. The dataset was provided by Gunnar Möller (Mine Warfare Data Center (C MWDC), 4th Naval Warfare Flottilla, Berga, Sweden) for the HELCOM Maritime Assessment published in 2018.

  • The data represents the seabed slope of the Baltic Sea and has been derived from a bathymetry dataset. Both datasets have been produced by the BSR INTERREG IIIB project BALANCE. For more information see also the metadata file on bathymetry.

  • 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