The sediments layer portrays the type of sea floor you can find in the sea area.
The sediments layer is a static layer, it can help in decision making to plan for wind farms or other structures fixed to the sea floor. It can also assist in identifying potentially important areas for protection.
In this tab you can see the information that applies concretely to the North Sea edition of the MSP Challenge.
Biogenic substrate
Coarse substrate: 80% or more of gravel or 5% or more gravel with 90% or more sand.
Fine mud: Self-explanatory name.
Fine mud or Sandy mud or Muddy sand
Limaria hians beds
Mixed sediment
Modiolus modiolus beds
Muddy sand
Mussel beds
Mytilus edulis beds
Ostrea edulis beds
Rock or other hard substrata
Sabellaria spinulosa reefs
Sand: Self-explanatory name.
Sandy mud
Sea bed
Sediment
Worm reefs
EMODnet Seabed Habitats dataportal.
EUSeaMap (2021) Broad-Scale Predictive Habitat Map - Substrate type (a habitat descriptor)
“Classified seabed substrate types for European seas. Produced by EMODnet Seabed Habitats as an input layer for the 2021 EUSeaMap broad-scale habitat model, based on a combination of EMODnet Geology seabed substrate products and biological substrates extracted from individual habitat maps from surveys around European seas.”
“Biological substrates were included in the 2021 version of EUSeaMap to assist in the classification of biogenic habitats for the 2019 version of EUNIS. The Folk 5 classification of substrate is adopted because it is compatible with both the 2007-11 and 2019 versions of EUNIS, both of which have been applied in EUSeaMap 2021.”
Description retrieved from http://gis.ices.dk/geonetwork/srv/eng/catalog.search#/metadata/dd52a1a4-842c-4306-9e03-c322c5028c2d, on 2021-11-11
2021-09-24
The geometries within the North Sea areas were selected and values were attributed to each sediment type present in the area. Then the attributes values were used to rasterise the data. The raster data layer was then reprojected to Lambert's Azimuthal Equal Area (EPSG:3035) projection.
DHI, EuSeaMap, BALANCE, retrieved from HELCOM on 2017-10-09.
Seabed sediment polygon (BALANCE)
"The dataset was created to be used in the HELCOM Baltic Sea Impact Index (BSII). It represents benthic biotope complexes in the Baltic Sea, based on a combination of geological sediment data and light availability data. The dataset contains the following six classes: 1 = Photic sand 2 = Non-photic sand 3 = Photic mud and clay 4 = Non-photic mud and clay 5 = Photic hard bottom 6 = Non-photic hard bottom The sediment data used in this dataset has been produced within the EU Interreg IIIB project BALANCE (www.balance-eu.org). The light availability data has been produced withing the EUSeaMap project (unpublished data) and was reported on request to HELCOM Secreteriat by DHI."
Description retrieved from HELCOM's metadata page for this resource (2021-07-19)
Not available. Revision date: 2010-10-01.Updated in 2017.
This layer was adapted for MSP Challenge integration. The photic and non-photic zones were merged to obtain just the sediments' classes: sand, mud and clay, and hard bottom.
Not applicable.
This layer is not available in the Clyde Marine Region Edition.
This layer is not available in the Adriatic Sea Edition.
Co-funded by the European Union.