Barentswatch
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Thickness of the sedimentary cover on the bedrock (Quaternary sediments) and thickness of sediments accumulated after the last ice age (Holocene sediments).
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Sediment genesis. Seabed sediments on the Norwegian Continental Shelf classified by genesis (quaternary geology).
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Sediment particle size. Grain size composition of the top layer of the seabed sediments in the marine areas of Norway. Data is obtained from many different mapping projects, hence the varying details on the map layers (overview, regional and detailed).
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Bottom reflectivity. Acoustic baskscatter. The strength of the acoustic signal reflected back from the seabed. It gives an indication of the nature of the seabed (soft or hard). Data aquired with differend equipment (multibeam echosounders and 3D-seismic technology).
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Name of marine areas, banks, shallows and depths in Norwegian sea areas.
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The map layer places the names of Barents Sea, Norwegian Sea and North Sea.
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The map layer shows the thickness of the upper part of the sediment cover, deposited after the end of last ice age, ca 11000 - 12000 years ago.
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Verdinivået for fisk indikerer viktigheten av området for økosystemet som helhet. Fremstillingen kan filtreres på tid og art. Arten med størst verdiutslag (max verdi) representerer gruppen som helhet. Vurderingsgrunnlaget for hver enkelt art er basert på: • Unikhet/nøkkelarter • Livshistorisk viktige områder og perioder • Tetthet • Viktighet for produktivitet Dataen er innhentet av Havforskningsinstituttet (HI).
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Sea Ice Frequency charts display the percentage of days with more than 15 % ice coverage for each month over a 30 years periode.
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Acoustic backscatter. Bottom reflectivity mapped with multibeam echosounder, 50 m grid. The strength of the acoustic signal reflected back from the seabed.