{ "@context": "https://schema.org", "@type": "Dataset", "@id": "http://portal.medin.org.uk/portal/json-ld/69aee89cfbd254d5b6bea2013a46a5da.jsonld", "identifier": "69aee89cfbd254d5b6bea2013a46a5da", "url": "http://portal.medin.org.uk/portal/?details&tpc=69aee89cfbd254d5b6bea2013a46a5da", "name": "2008, Metoc, Sherigham Shoal Offshore Wind Farm, Cable Landfall Erosion Study", "description": "StatoilHydro is planning to install two export cables to connect its Sheringham Shoal\r\nOffshore Wind Farm to the UK National Grid. The landfall will be at Weybourne on the North\r\nNorfolk coast. This desk study was commissioned to identify the optimum burial depth of the\r\ncables at the landfall by investigating the surface geology. Design requirements are:\r\n1) The overburden must never reduce below 1.5 m, which is the safety margin deemed to\r\nprevent the cables being exposed; and\r\n2) Subject to requirement 1, the overburden should be kept to a minimum to permit\r\neffective dissipation of heat from the cable.\r\nThe target of the present study is thus to determine the minimum burial depth that will\r\npreserve both the above conditions throughout the lifetime of the scheme, taking account of\r\nfuture erosion and climate change deliberations.\r\nThe storm beach at the landfall is actively mobile and is migrating alongshore in a westward\r\ndirection; it is also retreating landward due to coastal erosion with an average landward\r\nerosion rate of around 1 m per year. Additionally, there is a risk that beach material may be\r\ntemporarily denuded at times of severe storm surge such as those of 1953 and 1997; events\r\nof this severity would be likely to expose the cables if simply buried in the beach material.\r\nTherefore, it is strongly advisable to bury the cables in the rock underlying the beach rather\r\nthan in the beach material itself.\r\nDue to the complex geology at this location, it is not possible to prescribe a burial depth\r\nprofile that will guarantee to satisfy both of the above design requirements. The precise\r\nnature of the underlying rock is uncertain; there are several candidate formations ranging\r\nfrom firm chalk to loose glacial material. The Project has provided some geotechnical survey\r\ndata at locations offshore of the landfall. However, in order to answer the above questions,\r\nmore geotechnical and geophysical data will be needed at the landfall itself (e.g. subsurface\r\nradar and deep boreholes). Also, a site visit is recommended to improve understanding of\r\nthe beach profile and to help to identify the underlying geology.\r\nThis desktop study has been based on literature in the public domain; survey charts provided\r\nby StatoilHydro; and experience of similar projects in the region. There is potential to\r\nprogress this work further with follow-up studies as more survey data become available.", "includedInDataCatalog": { "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld" }, "conditionsOfAccess": [ "no conditions apply" ], "temporalCoverage": "2008-06-02", "keywords": [ { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/M03/current/M0303/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/M03/current/", "termCode": "M0303", "name": "Cable Landfall" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/M04/current/M0403/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/M04/current/", "termCode": "M0403", "name": "Pre-Construction monitoring" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/HEAV/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "HEAV", "name": "Wave height estimates" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/COGE/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "COGE", "name": "Coastal geomorphology" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/MNGS/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "MNGS", "name": "Sediment grain size parameters" }, { "@type": "DefinedTerm", "identifier": "http://vocab.ndg.nerc.ac.uk/term/N010/4/NDGO0001", "name": "Marine Environmental Data and Information Network" }, { "@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" } ], "spatialCoverage": { "@type": "Place", "geo": { "@type": "GeoShape", "box": "53.096122217091 1.0742216214591 53.174333255759 1.2244886798664" }, "additionalProperty": [ { "@type": "PropertyValue", "propertyID": "http://www.opengis.net/def/crs/EPSG/0/021", "value": "urn:ogc:def:crs:EPSG:021" } ] }, "maintainer": [ { "@type": "Organization", "name": "Scira Offshore Energy Ltd", "description": "custodian", "email": "info@scira.co.uk", "telephone": "0044 (0) 203 204 3200", "faxNumber": "N/A", "address": { "@type": "PostalAddress", "streetAddress": "One Kingdom Street, London, W2 6BD, United Kingdom" } } ], "producer": [ { "@type": "Organization", "name": "Scira Offshore Energy Ltd", "description": "originator", "email": "info@scira.co.uk", "telephone": "0044 (0) 203 204 3200", "faxNumber": "N/A", "address": { "@type": "PostalAddress", "streetAddress": "One Kingdom Street, London, W2 6BD, United Kingdom" } } ], "publisher": [ { "@type": "Organization", "name": "Scira Offshore Energy Ltd", "description": "pointOfContact", "email": "info@scira.co.uk", "telephone": "0044 (0) 203 204 3200", "faxNumber": "N/A", "address": { "@type": "PostalAddress", "streetAddress": "One Kingdom Street, London, W2 6BD, United Kingdom" } } ], "creator": [ { "@type": "Organization", "name": "Scira Offshore Energy Ltd", "description": "originator", "email": "info@scira.co.uk", "telephone": "0044 (0) 203 204 3200", "faxNumber": "N/A", "address": { "@type": "PostalAddress", "streetAddress": "One Kingdom Street, London, W2 6BD, 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." } }