5fa53736-11f5-417b-b160-9ac98bd012f5 eng utf8 dataset Environment Agency DSPcustomerforum@environment-agency.gov.uk pointOfContact 2025-07-25 Environment Agency Metadata Profile 1.1 http://www.opengis.net/def/crs/EPSG/0/27700 Multibeam Bathymetry 2010-02-09 creation 2023-12-15 revision 8a368a69-07b4-4136-846f-d85253d6b311 DSTR13297 Multibeam echo sounders, for Bathymetric survey, use sonar pulses to measure the distance between the survey vessel and the seabed. This instrument collects point data at a resolution of 25cm or better, depending on water depth, vessel speed and bed topography and produces a high resolution elevation dataset of the underwater terrain. The Environment Agency's Multibeam Bathymetric data archive includes digital elevation data derived from bathymetric surveys carried out for a range of applications and locations where surveys have been previously commissioned. Multibeam data is available at 50cm resolution and supplied as an ESRI ASCII Raster which contains height, relative to Ordnance Survey Newlyn datum. Data is available in 5km download zip files for each year of survey. Within each downloaded zip file are ASCII files aligned to the Ordinance Survey grid. The size of each tile is dependant upon the spatial resolution of the data. Elevation values are presented in metres. Please refer to the metadata index catalgoues for the survey date captured and spatial resolution of the imagery. Attribution statement: © Environment Agency copyright and/or database right 2019. All rights reserved. Environment Agency DSPcustomerforum@environment-agency.gov.uk https://environment.data.gov.uk/support Defra Data Services Forum pointOfContact biannually Bathymetry environment oceans elevation theme Elevation GEMET - INSPIRE themes, version 1.0 2008-06-01 publication geonetwork.thesaurus.external.theme.httpinspireeceuropaeutheme-theme mapping GEMET - Concepts, version 2.4 2010-01-13 publication geonetwork.thesaurus.external.theme.gemet remote sensing GEMET - Concepts, version 2.4 2010-01-13 publication geonetwork.thesaurus.external.theme.gemet mapping GEMET - Concepts, version 2.4 2010-01-13 publication geonetwork.thesaurus.external.theme.gemet sea bed GEMET - Concepts, version 2.4 2010-01-13 publication geonetwork.thesaurus.external.theme.gemet Open Government Licence otherRestrictions license copyright There are no public access constraints to this data. Use of this data is subject to the licence identified. otherRestrictions license copyright There are no public access constraints to this data. Use of this data is subject to the licence identified. vector eng utf8 environment oceans elevation true -5.7 1.8 50 55.8 2010-09-02 2021-01-04 Open format | Arc/Info ASCII Grid (AAIGrid) Not Applicable https://environment.data.gov.uk/api/file/download?fileDataSetId=26cade53-0482-4656-a2de-db68cdaa154e&fileName=Multibeam_Bathymetry.gdb.zip http Multibeam_Bathymetry.gdb.zip Multibeam_Bathymetry.gdb.zip download on Defra Data Services Platform https://environment.data.gov.uk/api/file/download?fileDataSetId=26cade53-0482-4656-a2de-db68cdaa154e&fileName=Multibeam_Bathymetry.geojson.zip http Multibeam_Bathymetry.geojson.zip Multibeam_Bathymetry.geojson.zip download on Defra Data Services Platform https://environment.data.gov.uk/api/file/download?fileDataSetId=26cade53-0482-4656-a2de-db68cdaa154e&fileName=Multibeam_Bathymetry.gpkg.zip http Multibeam_Bathymetry.gpkg.zip Multibeam_Bathymetry.gpkg.zip download on Defra Data Services Platform https://environment.data.gov.uk/api/file/download?fileDataSetId=26cade53-0482-4656-a2de-db68cdaa154e&fileName=Multibeam_Bathymetry.shp.zip http Multibeam_Bathymetry.shp.zip Multibeam_Bathymetry.shp.zip download on Defra Data Services Platform https://environment.data.gov.uk/DefraDataDownload/?Mode=survey http Survey Data - Download Download the survey data https://environment.data.gov.uk/explore/9f0fa3fc-a860-4729-adc9-47fe53f658d0 http Metadata Shapefile Index Catalogues - Download Download the coverage metadata files https://environment.data.gov.uk/spatialdata/survey-index-files/wms?request=GetCapabilities&service=WMS http Metadata Index Catalogues - WMS Coverage metadata files - Web Map Service https://environment.data.gov.uk/spatialdata/survey-index-files/wfs?request=GetCapabilities&service=WFS http Metadata Index Catalogues - WFS Coverage metadata files - Web Feature Service https://environment.data.gov.uk/support/faqs/275879146 http Survey Data Catalogue FAQs Survey Data Catalogue FAQs dataset Multibeam echo sounders, for Bathymetric survey, use sonar pulses to measure the distance between the survey vessel and the seabed. This instrument collects point data at a resolution of 25cm or better, depending on water depth, vessel speed and bed topography and produces a high resolution elevation dataset of the underwater terrain.