{ "@context": "https://schema.org", "@type": "Dataset", "@id": "http://portal.medin.org.uk/portal/json-ld/4d90a359ec4f58178b21ffb49e74fbec.jsonld", "identifier": "4d90a359ec4f58178b21ffb49e74fbec", "url": "http://portal.medin.org.uk/portal/?details&tpc=4d90a359ec4f58178b21ffb49e74fbec", "name": "Greater Haig Fras autonomous underwater vehicle seafloor survey - mosaicked image tiles used to assess benthic assemblages and seabed types (2012)", "description": "Seafloor visual images were acquired during a survey within the Greater Haig Fras Marine Conservation Zone (MCZ), central Celtic Sea, in 2012. This was the first in a series of similar surveys to be conducted in this location. A camera system mounted on the autonomous underwater vehicle (AUV) Autosub6000 was deployed during RRS Discovery cruise 377/8 (D377/8), and images were collected from four 4.7 km transect lines. Images were mosaicked in \"tiles\" consisting of five consecutive images (each tile representing approximately 7.3 m2 of seabed). Images were orthorectified and scaled to a common altitude per tile. The mosaicked tiles are provided in this collection. The aim of the survey was to undertake high-resolution acoustic seabed mapping and visual imagery in a Marine Protected Area, in order to highlight the capability of AUV technology for offshore seabed mapping and benthic assemblage assessment. The work was initially undertaken as part of a Defra-funded project \"Investigating the feasibility of utilizing AUV and Glider technology for mapping and monitoring of the UK MPA network (MB0118)\", Case study 2: Shallow-water AUV mapping off SW UK (https://nora.nerc.ac.uk/id/eprint/500733/), and the Natural Environment Research Council (NERC) funded Autonomous Ecological Surveying of the Abyss project (NE/H021787/1), involving scientists from the National Oceanography Centre (NOC), UK.", "includedInDataCatalog": { "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld" }, "conditionsOfAccess": [ "access: No limitations apply", "access: Data are freely available", "use: No conditions apply" ], "distribution": [ { "@type": "DataDownload", "name": "Published dataset - doi:10.5285/093edbc7-3552-3d35-e063-6c86abc099d5", "description": "Benoist N., Bett B.J., Morris K., Ruhl H. (2023). Greater Haig Fras autonomous underwater vehicle seafloor survey - mosaicked image tiles used to assess benthic assemblages and seabed types (2012). NERC EDS British Oceanographic Data Centre NOC doi: 10.5285/093edbc7-3552-3d35-e063-6c86abc099d5", "contentUrl": "https://www.bodc.ac.uk/data/published_data_library/catalogue/10.5285/093edbc7-3552-3d35-e063-6c86abc099d5/" } ], "temporalCoverage": "2012-07-26", "keywords": [ { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P22/current/31/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P22/current/", "termCode": "31", "name": "Habitats and biotopes" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P22/current/32/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P22/current/", "termCode": "32", "name": "Species distribution" }, { "@type": "DefinedTerm", "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/HBCH/", "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/", "termCode": "HBCH", "name": "Habitat characterisation" }, { "@type": "DefinedTerm", "identifier": 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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 2026-04-21. Record deletion takes place weekly and the latest occurred 2026-04-19." } }