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    Based on DHI operational Hydrodynamic 3D Model DKBS2hd model run results, a point dataset describing for each year the probability of a certain seabed location in the Baltic Sea being located below the deep halocline has been created. The spatial coverage is the Baltic Sea. The spatial resolution is 5km. The temporal coverage is 20 years (2001-2020). The dataset is a point shapefile, the attribute table of which contains the following columns - 20 columns whose name is in the form p[yyyy] (e.g; p2001), where yyyy is the year: for the year yyyy, probability of the point location being located below the deep halocline - column ‘mean’: probability average (i.e. average of the 20 yearly probabilities) - column ‘std’: probability standard deviation across the 20 years The development of the original point dataset was funded by the EMODnet lot ‘Seabed Habitats’ for use in the development of the EUSeaMap product, more specifically in modeling the spatial distribution of the biological zones ‘circalittoral’ and ‘offshore circalittoral’. According to the EUNIS habitat classification, in the Baltic Sea the circalittoral is above the halocline/pycnocline, while the offshore circalittoral is below.

  • Categories  

    EUNIS 2007-11 habitat map created from data collected on the CEND2213 2013/11/04 survey to North Norfolk Sandbank and Saturn Reef. Sublittoral sediments defined using acoustic and groundtruth data. Survey Techniques: 40 transects. Sidescan sonar and multibeam echosounder, dropcam video tows and still photography. Infaunal sample and particle size analysis (PSA) carried out on 0.1m2 Hamon grab samples. The habitat map was produced using EUNIS classes obtained from PSA data and interpretations from still images, to inform the semi-automated object-based imagery analysis (OBIA). The OBIA divides the bathymetry and backscatter data into meaningful objects based on their spectral and spatial characteristics, which can then be classified using the ground-truthed data.

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    This dataset shows broad marine habitats in Broadhaven Bay. The map was made from an interpretation of multibeam acoustic imagery and groundtruthed using sediment samples. The MBES data and sediment samples were collected as part of the Irish national seabed mapping programme - INFOMAR.

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    This dataset shows broad marine habitats in Kinsale Harbour and outer coastal area. The map was made from an interpretation of multibeam acoustic imagery and groundtruthed using sediment samples. The MBES data and sediment samples were collected as part of the Irish national seabed mapping programme - INFOMAR.

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    This dataset shows broad marine habitats in Cork Harbour. The map was made from an interpretation of multibeam acoustic imagery and groundtruthed using sediment samples. The MBES data and sediment samples were collected as part of the Irish national seabed mapping programme - INFOMAR.

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    Habitat map created from data collected on the NLV Polestar 2012 survey to Stanton Banks. Sublittoral sediments defined using acoustic and groundtruth data. Initially classified in the MNCR system and subsequently translated in to EUNIS 20017-11. Survey Techniques: Multibeam echosounder, dropcam video tows and still photography. Infaunal sample and particle size analysis (PSA) carried out on 0.1m2 Day grab samples. The habitat map was produced using EUNIS classes obtained from PSA data and interpretations from still images.

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    Habitat map created from data collected on the RV Cefas Endeavour CEND19x12 2012 survey to Braemar Pockmarks SAC. Sublittoral sediments defined using acoustic and groundtruth data. Classified in EUNIS 20017-11. Survey Techniques: Multibeam echosounder, sidescan sonar, dropcam video tows and still photography. Infaunal sample and particle size analysis (PSA) carried out on 0.1m2 Day and Hamon grab samples. The habitat map was produced using EUNIS classes obtained from PSA data and interpretations from still images.

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    Habitat map created from data collected on the RV Cefas Endeavour CEND19x12 2012 survey to Scanner Pockmark SAC. Sublittoral sediments defined using acoustic and groundtruth data. Classified in EUNIS 20017-11. Survey Techniques: Multibeam echosounder, sidescan sonar, dropcam video tows and still photography. Infaunal sample and particle size analysis (PSA) carried out on 0.1m2 Day and Hamon grab samples. The habitat map was produced using EUNIS classes obtained from PSA data and interpretations from still images.

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    Energy class layer produced by EMODnet Seabed Habitats as an input layer for the 2021 EUSeaMap broad-scale habitat model. The extent of the mapped area includes the Baltic Sea, and areas of the North Eastern Atlantic and Arctic extending from the Canary Islands in the south to Norway in the North. The map of energy classes was produced using underlying wave and current data and thresholds derived from statistical analyses or expert judgement on known conditions. This layer is the same as the input used in EUSeaMap 2019. A report on the methods used in the 2021 version of EUSeaMap (Vasquez et al., 2021) and reports on previous versions (v2016 and V2019) are linked in Online Resources.

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    This layer shows the current known extent of biogenic substrate in European waters, collated by EMODnet Seabed Habitats in 2021. The purpose was to produce a data product that would add a new class of substrate into the EUSeaMap substrate layer for EUSeaMap 2021. This was required in order to classify the EUSeaMap broad-scale habitat map according to the 2019 version of the EUNIS habitat classification system, which includes a biogenic substrate category.