{ "@context": "https://schema.org", "@type": "Dataset", "@id": "http://portal.medin.org.uk/portal/json-ld/e1f6bfd052375bbb826a2a06e12d59a7.jsonld", "identifier": "e1f6bfd052375bbb826a2a06e12d59a7", "url": "http://portal.medin.org.uk/portal/?details&tpc=e1f6bfd052375bbb826a2a06e12d59a7", "name": "Data from the Surface Water Ocean Topography (SWOT-UK) project.", "description": "Satellite-derived data and data used for satellite data validation from the SWOT-UK project. Validation sea level elevation data are from tide gauges re-referenced to ETRS89 (WGS84) This data covers the Bristol Channel, Severn estuary and river Severn. The bulk of the data spans the period from the beginning of 2022 to the end of July 2023, but the data used for the validation of the Cryosat2 satellite goes back to 2012. These data came from the Environment Agency and National Network of Regional Coastal Monitoring Programmes (Channel Coastal Observatory) APIs, with three addition Global Navigation Satellite Systems Interferometric Reflectometry (GNSS-IR) systems installed by the project team. The data were transformed to ETRS89 (WGS84) Ellipsoid using a software utility provided by the Ordnance Survey, for comparison to satellite altimetry data. Stations measuring relative to chart or stage datum were corrected to ordnance datum before transformation to ETRS89 (WGS84). The data are supplied as water surface elevation (altitude) in metres, relative to ETRS89 (WGS84) Ellipsoid. These real-time in situ data have not been corrected for atmospheric pressure, to match the total water level measurements of the satellite.", "includedInDataCatalog": { "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld" }, "conditionsOfAccess": [ "access: No limitations apply", "access: Data are freely available to all following agreement to the terms and conditions of a Data Licence", "use: Usage restrictions are specified in the terms of the licence" ], "temporalCoverage": "2012-01-01/2023-07-10", "keywords": [ { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P22/current/2/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P22/current/", "termCode": "2", "name": "Geographical grid systems" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P22/current/10/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P22/current/", "termCode": "10", "name": "Elevation" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/ALAT/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "ALAT", "name": "Horizontal spatial co-ordinates" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/ASLV/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "ASLV", "name": "Sea level" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/N01/current/NDGO0001/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/N01/current/", "termCode": "NDGO0001", "name": "Marine Environmental Data and Information Network" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/N01/current/NDGO0003/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/N01/current/", "termCode": "NDGO0003", "name": "Natural Environment Research Council Designated Data Centres" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/N01/current/NDGO0005/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/N01/current/", "termCode": "NDGO0005", "name": "data.gov.uk" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/L13/current/UK/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/L13/current/", "termCode": "UK", "name": "unknown" } ], "spatialCoverage": { "@type": "Place", "geo": { "@type": "GeoShape", "box": "51.1 -4.3 51.85 -2.2" }, "additionalProperty": [ { "@type": "PropertyValue", "propertyID": "http://www.opengis.net/def/crs/OGC/1.3/CRS84", "value": "urn:ogc:def:crs:EPSG:4326" } ] }, "author": [ { "@type": "Organization", "name": "National Oceanography Centre (Liverpool)", "description": "owner", "email": "enquiries@noc.ac.uk", "telephone": "+44 (0)151 795 4800", "address": { "@type": "PostalAddress", "streetAddress": "Joseph Proudman Building, 6 Brownlow Street", "postalCode": "L3 5DA", "addressLocality": "Liverpool", "addressRegion": "Merseyside", "addressCountry": "United Kingdom" } } ], "maintainer": [ { "@type": "Organization", "name": "British Oceanographic Data Centre", "description": "custodian", "email": "enquiries@bodc.ac.uk", "address": { "@type": "PostalAddress", "streetAddress": "Joseph Proudman Building, 6 Brownlow Street", "postalCode": "L3 5DA", "addressLocality": "Liverpool", "addressRegion": "Merseyside", "addressCountry": "United Kingdom" } } ], "producer": [ { "@type": "Organization", "name": "National Oceanography Centre (Liverpool)", "description": "originator", "email": "enquiries@noc.ac.uk", "telephone": "+44 (0)151 795 4800", "address": { "@type": "PostalAddress", "streetAddress": "Joseph Proudman Building, 6 Brownlow Street", "postalCode": "L3 5DA", "addressLocality": "Liverpool", "addressRegion": "Merseyside", "addressCountry": "United Kingdom" } } ], "publisher": [ { "@type": "Organization", "name": "British Oceanographic Data Centre", "description": "pointOfContact", "email": "enquiries@bodc.ac.uk", "address": { "@type": "PostalAddress", "streetAddress": "Joseph Proudman Building, 6 Brownlow Street", "postalCode": "L3 5DA", "addressLocality": "Liverpool", "addressRegion": "Merseyside", "addressCountry": "United Kingdom" } } ], "provider": [ { "@type": "Organization", "name": "British Oceanographic Data Centre", "description": "distributor", "email": "enquiries@bodc.ac.uk", "address": { "@type": "PostalAddress", "streetAddress": "Joseph Proudman Building, 6 Brownlow Street", "postalCode": "L3 5DA", "addressLocality": "Liverpool", "addressRegion": "Merseyside", "addressCountry": "United Kingdom" } } ], "creator": [ { "@type": "Organization", "name": "National Oceanography Centre (Liverpool)", "description": "owner", "email": "enquiries@noc.ac.uk", "telephone": "+44 (0)151 795 4800", "address": { "@type": "PostalAddress", "streetAddress": "Joseph Proudman Building, 6 Brownlow Street", "postalCode": "L3 5DA", "addressLocality": "Liverpool", "addressRegion": "Merseyside", "addressCountry": "United Kingdom" } } ], "sdPublisher": { "@type": "Organization", "url": "https://portal.medin.org.uk/portal/", "name": "Marine Environmental Data and Information Network (MEDIN)", "description": "The MEDIN portal contains information about 19493 marine datasets from over 600 UK organisations. Metadata are an enduring resource and contact details are publicly available for a long time. \r\n\t\tPlease contact us (enquiries@medin.org.uk) if you find your contact details on the MEDIN portal and do not consent to this. \r\n\t\tYou can now use our GitHub repository to report issues or access related documents. Metadata records are updated daily and were last updated 2026-04-19. Record deletion takes place weekly and the latest occurred 2026-04-12." } }