{
    "@context": "https://schema.org",
    "@type": "Dataset",
    "@id": "http://portal.medin.org.uk/portal/json-ld/NRW_DS125640.jsonld",
    "identifier": "NRW_DS125640",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=NRW_DS125640",
    "name": "Findings of drop down video and stills imagery from an area of drumlins off Northwest Anglesey, July 2019",
    "description": "This data contains the raw products of a seabed survey of an area of drumlins off north west Anglesey. The images and video was taken by a Natural Resources Wales owned drop down camera system to provide a better understanding of the seabed structure and biological communities at the survey sites and to investigate the presence of non-native species. The data contains Video (.asf) (and still images (.JPG) The data was collected on the 11th July 2019. The a copy of the MR snapshot produced after data analysis by the contractor is also supplied here. The analysis of the video and stills imagery followed guidelines provided by NRW, Marine EcoSol\u2019s in-house standard operating procedures, and JNCC/NMBAQC recommendations. The video camera showed a swath of seabed approximately 0.3m wide, while still images showed an area estimated as about 0.13m2. All images were reviewed using appropriate high-quality imaging equipment capable of playing and displaying full HD video at 1920p x 1080p resolution. \r\n\r\nThe video and set of stills from each tow were reviewed prior to detailed assessment and recording, and the boundaries between biotopes or biotope complexes noted by recording the time and positional coordinates at which major changes in seabed and habitat type occurred. The species and substratum in each habitat \u2018sample\u2019 (tow section) was then recorded, and biotopes assigned. Discrete habitat tow sections or \u2018samples\u2019 as defined above were determined using a combination of video and stills images. The lower quality video imagery was then linked to the \u2018sample\u2019 in terms of data recording using the time stamp on the video playback. Higher quality stills images were used to identify and quantify substrates and taxa, with abundances pooled to assess the abundance of the taxa over each sample.",
    "includedInDataCatalog": {
        "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld"
    },
    "conditionsOfAccess": [
        "access: There are no access restrictions on this data. NRW may release, publish or disseminate it freely.",
        "access: no limitations",
        "use: \u00a9 CNC/NRW Data may be re-used under the terms of the Open Government Licence providing it is done so, acknowledging both the source and NRW's copyright. It is the recipient's responsibility to ensur",
        "use: Contains Natural Resources Wales information \u00a9 Natural Resources Wales and Database Right. All rights Reserved.",
        "use: https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/"
    ],
    "temporalCoverage": "2019-07-11",
    "keywords": [
        {
            "@type": "DefinedTerm",
            "identifier": "http://inspire.ec.europa.eu/theme/hb",
            "name": "Habitats and biotopes"
        },
        {
            "@type": "DefinedTerm",
            "name": "Drumlins"
        },
        {
            "@type": "DefinedTerm",
            "name": "towed video"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/SBPH/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "SBPH",
            "name": "Seabed photography"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/HBEX/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "HBEX",
            "name": "Habitat extent"
        },
        {
            "@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"
        }
    ],
    "spatialCoverage": {
        "@type": "Place",
        "geo": {
            "@type": "GeoShape",
            "box": "53.1262 -4.7004 53.4301 -4.0394"
        },
        "name": {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/C19/current/1_4/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/C19/current/",
            "termCode": "1_4",
            "name": "Irish Sea"
        },
        "additionalProperty": [
            {
                "@type": "PropertyValue",
                "propertyID": "http://www.opengis.net/def/crs/OGC/1.3/CRS84",
                "value": "urn:ogc:def:crs:EPSG:4326"
            }
        ]
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    "author": [
        {
            "@type": "Organization",
            "name": "Natural Resources Wales (NRW)",
            "description": "owner",
            "email": "enquiries@naturalresourceswales.gov.uk",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Maes-y-Ffynnon, Penrhosgarnedd, Bangor, Gwynedd, LL57 2DW, Wales"
            }
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    "maintainer": [
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        "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."
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}