This dataset contains the findings from the analyses of data gathered during a seabed survey of Scanner Pockmark SCI. The pockmark and unit pockmark features present are a series of crater-like depressions on the seafloor. These structures consist of large blocks, pavements, slabs and smaller fragments of carbonate rock, including methane-derived authigenic carbonate (MDAC). The features are classified as the Directives Annex I habitat Submarine structures made by leaking gases even in the absence of MDAC as the qualifying feature has been recorded in the past, and the presence of leaking gases is inferred from high reflectance backscatter data.
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Denominator
46704
Language
English
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Reference System Information
Unique resource identifier
http://www.opengis.net/def/crs/EPSG/0/3857
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Statement
The data was projected into WGS 1984. Topology corrections were made to eliminate small errors and define the boundaries between individual pockmark features. Site lead for Scanner Pockmark SCI was consulted in how to classify the pockmark and unit pockmark features according to the Habitats Directive. This map was then formatted by JNCC to meet the Data Exchange Format v4.1 required for EMODnet uploads in February 2023.