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    "identifier": "8ecb0c35-e313-49c0-95a1-b5335d3e88ef",
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    "name": "2008, EMU, Skerries Tidal Site, Marine Geophysical Survey",
    "description": "Emu Ltd was commissioned by SeaGeneration (Wales) Ltd to undertake a geophysical survey\r\nof the proposed tidal energy farm, located in The Skerries, off the north west coast of\r\nAnglesey.\r\n\r\nThe aim of the survey was to determine and report on the subsurface and seabed conditions in\r\norder to facilitate the construction of the tidal energy farm. The survey was performed using\r\nswath bathymetry, sidescan sonar imaging, magnetometor, shallow seismic (boomer) and the\r\ncollection of seabed samples for ground truthing.\r\n\r\nSurvey lines were run using a line plan which amounted to approximately 90 line kilometres.\r\nThe survey was carried out using the vessel FPV Morven between the 12th and the 22nd\r\nAugust 2008 utilising:\r\n\r\n\u2022 A fully motion aided Reson 8101 multibeam echosounder\r\n\u2022 An SES Sonar Mag digital sidescan sonar system and Edgetech 4200 digital sidescan\r\nsonar system, positioned with a Sonardyne Scout USBL\r\n\u2022 A Geometrics G-882 marine caesium vapour magnetometer\r\n\u2022 An Applied Acoustics AA200 boomer system\r\n\u2022 A stainless steel Shipek grab.\r\n\r\nBathymetry data were reduced to Chart Datum at Holyhead using GPS tidal elevations\r\nrecorded on board the survey vessel. The site of the proposed tidal energy farm has variable\r\ndepths over the surveyed area. Depths range from 0 m to 50 m below Chart Datum (CD).\r\n\r\nDepth variations across the site appeared to correspond not only to exposed bedrock but also\r\nfingers of mobile and static sediment within the area.\r\n\r\nCoarse sand and bedrock dominated the central and western region of the surveyed area.\r\nSurrounding this area were regions that contained cobbled silt, gravelly pebbly cobbles, sandy\r\ngravel and cobbly sand. Bedforms with a maximum wave height of 2 m have been identified\r\nin the surveyed area and have their long axis generally orientated NNW-SSE.\r\n\r\nPockets of sediment infilling the surface topography of the bedrock were clearly identified in\r\nthe seismic data. The distribution and thickness of these sediment deposits have been mapped.\r\nAs expected very little seismic penetration into the bedrock was achieved.",
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    "conditionsOfAccess": [
        "http://www.marinedataexchange.co.uk/pages/terms-of-use.aspx",
        "restricted: PROPRIETARY & CONFIDENTIAL INFORMATION. This document and the information set forth herein (the \"information\") are confidential and proprietary to Marine Current Turbines Ltd (\"MCT\"), constitute trade secrets and derive independent economic value, actual or potential, from not being generally known. In consideration of you receiving this document you agree (i) to keep the information secret, (ii) only to use the information for your owns needs to accomplish the task(s) agreed with MCT, (iii) not to disclose any part of the information to any third party and (iv) not to make copies or reproductions thereof by whatsoever means."
    ],
    "temporalCoverage": "2008-08-12/2008-08-22",
    "keywords": [
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            "termCode": "MD007",
            "name": "Bathymetry and Seafloor topography"
        },
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            "name": "Bathymetry and Elevation"
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            "name": "Magnetics"
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            "name": "Side-scan sonar"
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            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "SRFL",
            "name": "Seismic reflection"
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            "name": "Seismic refraction"
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            "box": "53.4152 -4.5909 53.4228 -4.5645"
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        "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."
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