{
    "@context": "https://schema.org",
    "@type": "Dataset",
    "@id": "http://portal.medin.org.uk/portal/json-ld/aba64100-c152-4de3-e044-0003ba6f30bd.jsonld",
    "identifier": "aba64100-c152-4de3-e044-0003ba6f30bd",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=aba64100-c152-4de3-e044-0003ba6f30bd",
    "name": "2005 Strategic Environmental Assessment SEA6 Technical Report - Underwater Ambient Noise (Irish Sea)",
    "description": "This report is a contribution to the Strategic Environmental Assessment (SEA6) conducted by the Department of Trade and Industry (now Department of Energy and Climate Change). This report reviews the many different sources of underwater noise, both natural and anthropogenic, that combine to provide the background noise levels in which marine organisms need to survive throughout the SEA6 region. The sources of sound combine together in a complex manner resulting in significant spatial and temporal variations in the noise field. A map of the dominant noise sources in the Irish Sea is shown, indicating that man-made noise is the dominant source of noise over about 70% of the area. Shipping noise is likely to be dominant across large parts of the SEA6 area.\r\n\r\nTo fully characterise the ambient noise field in the SEA6 area would require multiple measurements at a large number of locations over a period of a year. However, a considerably lower cost approach would be to characterise each sound source and to use this with occurrence statistics for each source to model the ambient noise field across the region. The advantages and disadvantages of the acoustic modelling approach are discussed.",
    "includedInDataCatalog": {
        "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld"
    },
    "distribution": [
        {
            "@type": "DataDownload",
            "name": "Strategic Environmental Assessment (SEA) data portal",
            "contentUrl": "http://www.bgs.ac.uk/data/sea/home.html"
        }
    ],
    "temporalCoverage": "2005-01-01",
    "keywords": [
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.ndg.nerc.ac.uk/term/N010/0",
            "name": "NDGO0001"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.ndg.nerc.ac.uk/term/P021/64/TRAN",
            "name": "Transport activity"
        },
        {
            "@type": "DefinedTerm",
            "name": "Production and industrial facilities"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.ndg.nerc.ac.uk/term/L131/3/CR",
            "name": "crust"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.ndg.nerc.ac.uk/term/L131/3/SD",
            "name": "sediment"
        }
    ],
    "spatialCoverage": {
        "@type": "Place",
        "geo": {
            "@type": "GeoShape",
            "box": "51.7 -6 55.3 -4"
        },
        "additionalProperty": [
            {
                "@type": "PropertyValue",
                "propertyID": "http://www.opengis.net/def/crs/OGC/1.3/CRS84",
                "value": "urn:ogc:def:crs:EPSG:4326"
            }
        ]
    },
    "maintainer": [
        {
            "@type": "Organization",
            "name": "British Geological Survey (BGS)",
            "description": "custodian",
            "email": "offshoredata@bgs.ac.uk",
            "telephone": "+44 (0)131 667 1000",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Murchison House, West Mains Road",
                "postalCode": "EH9 3LA",
                "addressLocality": "Edinburgh",
                "addressCountry": "UK"
            }
        }
    ],
    "producer": [
        {
            "@type": "Organization",
            "name": "Department for Energy and Climate Change (DECC)",
            "description": "originator",
            "email": "enquiries@decc.gsi.gov.uk",
            "telephone": "+44 0300 060 4000",
            "faxNumber": "+44 (0) 1823 284077",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Admiralty Way",
                "postalCode": "SW1A 2HD",
                "addressLocality": "London",
                "addressCountry": "UK"
            }
        }
    ],
    "publisher": [
        {
            "@type": "Organization",
            "name": "British Geological Survey (BGS)",
            "description": "pointOfContact",
            "email": "offshoredata@bgs.ac.uk",
            "telephone": "+44 (0)131 667 1000",
            "faxNumber": "+44 (0)131 668 4140",
            "address": {
                "@type": "PostalAddress"
            }
        }
    ],
    "creator": [
        {
            "@type": "Organization",
            "name": "Department for Energy and Climate Change (DECC)",
            "description": "originator",
            "email": "enquiries@decc.gsi.gov.uk",
            "telephone": "+44 0300 060 4000",
            "faxNumber": "+44 (0) 1823 284077",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Admiralty Way",
                "postalCode": "SW1A 2HD",
                "addressLocality": "London",
                "addressCountry": "UK"
            }
        }
    ],
    "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."
    }
}