b583d5ed-2526-4cd2-ab69-7a6b8915f59f Graeme Duncan Joint Nature Conservation Committee (JNCC) Marine Mapping Scientist Graeme.Duncan@jncc.gov.uk 2020-01-15T12:17:20 MEDIN Discovery metadata standard 2.3.4 urn:ogc:def:crs:EPSG::4326 West Shetland Shelf Area rule based top down benthic habitat map 2013 GB001248 2013-08-01 2013-06-27 2013-06-27 JNCC-MESH-GB001248-GB001249-GB001250 The objective of this project was to generate seabed habitat maps for locations with full coverage acoustic datasets to as detailed a hierarchical level as possible within the Marine Habitat Classification for Britain and Ireland (version 04.05), also known as MNCR classification, (Connor et al. 2004). The acoustic data were at various stages of processing and interpretation, therefore the mapping of habitats and biotopes in some areas have required a greater amount of work to reach the same level compared to other areas. The constituent polygons within the habitat/biotope maps are labelled to an appropriate level of the Habitat Classification and translated to the corresponding EUNIS code. In order to generate seabed habitat maps for the areas the data associated with each area were required to undergo some preliminary preparation and processing in order to ensure suitability and compatibly with the mapping methodologies employed. The data were then processed using several techniques: a top-down approach was adopted based on the methods developed by MESH and UKSeaMap and used by EUSeaMap, which utilised the updated seabed substrate information provided by BGS. In addition a bottom up approach was taken to utilise the recently acquired point sample data and bathymetry and backscatter data sets, and this process took an object based approach supplemented by supervised classification and categorisation. Three maps for each MPA proposal have been produced (the level of habitat detail which could be mapped was restricted to level 3 or 4 of the EUNIS classification and level 2 or 3 of the MNCR classification) with associated metadata and peripheral supplementary data to aid in future analysis and interpretation. A confidence assessment using the MESH confidence assessment method has been undertaken for each habitat map produced and certainty of classification maps accompany each habitat map also. Ian Sotheran Envision Mapping Ltd dassh.enquiries@mba.ac.uk Graeme Duncan Joint Nature Conservation Committee (JNCC) - Aberdeen Office Marine Mapping Scientist +44 (0)1733 866915 +44 (0)1733 555948 Monkstone House, City Road Peterborough PE1 1JY United Kingdom Graeme.Duncan@jncc.gov.uk Geographic Information System Marine Environmental Data and Information Network Habitats and biotopes GEMET - INSPIRE themes, version 1.0 2008-01-06 Habitats and biotopes INSPIRE THEMES 2011-02-16 Habitat extent SeaDataNet P021 parameter discovery vocabulary 2009-11-16 Data available under the Open Government License Data available under the Open Government License 50 biota Charting Progress 2 Sea Areas 2009-06-18 Scottish Continental Shelf ICES Rectangles 2009-05-01 46E5 ICES Rectangles 2009-05-01 47E5 International Hydrographic Bureau, Limits of Oceans and Seas 1954-01-01 North Atlantic Ocean SeaDataNet vertical extent keywords 2010-01-01 circalittoral SeaDataNet vertical extent keywords 2010-01-01 deep circalittoral -4.9219 -4.1968 58.8933 59.4227 2013-02-27 2013-08-01 Marine data JNCC Joint Nature Conservation Committee (JNCC) - Aberdeen Office +44 (0)1224 655704 +44 (0)1224-621488 Dunnet House, 7 Thistle Place, Aberdeen AB10 1UZ dassh.enquiries@mba.ac.uk https://files.emodnet-seabedhabitats.eu/data/EMODnetSBHsurvey_GB001248.zip WWW:LINK-1.0-http--link EMODnet Seabed Habitats download MCA Hydrgraphic project data provided backscatter and bathymetry data, point sample data were collated from marine recorder records and MPA survey data, EUSeaMap biozone and energy layers were updated with new parameters