{
    "@context": "https://schema.org",
    "@type": "Dataset",
    "@id": "http://portal.medin.org.uk/portal/json-ld/23eec7984c4d5f3cbeb2135e0b17b109.jsonld",
    "identifier": "23eec7984c4d5f3cbeb2135e0b17b109",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=23eec7984c4d5f3cbeb2135e0b17b109",
    "name": "The oceanographic dataset collected during the research cruise identified as CH57 on board the RRS Challenger",
    "description": "This dataset comprises 109 hydrographic data profiles, collected by a conductivity-temperature-depth (CTD) sensor package, during July - August 1989 from a pre-determined 123-station survey grid covering the southern North Sea (south of 56N). A complete list of all data parameters are described by the SeaDataNet Parameter Discovery Vocabulary (PDV) keywords assigned in this metadata record. The data were collected by the Proudman Oceanographic Laboratory as part of the North Sea Project water column survey.",
    "includedInDataCatalog": {
        "@id": "http://portal.medin.org.uk/portal/json-ld/catalog.jsonld"
    },
    "conditionsOfAccess": [
        "access: No limitations apply",
        "access: Data are freely available to all following agreement to the terms and conditions of the Open Government Licence. The licence terms and conditions are available via https://www.bodc.ac.uk/data/documents/nodb/267809/",
        "use: Usage restrictions are specified in the terms of the licence"
    ],
    "distribution": [
        {
            "@type": "DataDownload",
            "name": "BODC online data delivery service",
            "description": "Access the BODC 'all data series' National Oceanographic Database data delivery service; pre-filtered for the RRS Challenger Cruise CH57 data collection",
            "contentUrl": "https://www.bodc.ac.uk/data/bodc_database/nodb/cruise/3368/"
        }
    ],
    "temporalCoverage": "1989-07-24/1989-08-05",
    "keywords": [
        {
            "@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"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/N01/current/NDGO0003/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/N01/current/",
            "termCode": "NDGO0003",
            "name": "Natural Environment Research Council Designated Data Centres"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/NTRI/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "NTRI",
            "name": "Nitrite concentration parameters in the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/ACYC/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "ACYC",
            "name": "Reference numbers"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/TEMP/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "TEMP",
            "name": "Temperature of the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/ACFL/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "ACFL",
            "name": "Quality control flags"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/PHOS/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "PHOS",
            "name": "Phosphate concentration parameters in the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/CPWC/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "CPWC",
            "name": "Chlorophyll pigment concentrations in water bodies"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/DOXY/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "DOXY",
            "name": "Dissolved oxygen parameters in the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/VSRW/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "VSRW",
            "name": "Visible waveband radiance and irradiance measurements in the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/SIGT/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "SIGT",
            "name": "Density of the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/ATTN/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "ATTN",
            "name": "Transmittance and attenuance of the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/PHWC/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "PHWC",
            "name": "Phaeopigment concentrations in the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/NTRA/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "NTRA",
            "name": "Nitrate concentration parameters in the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/AMON/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "AMON",
            "name": "Ammonium and ammonia concentration parameters in water bodies"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/PSAL/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "PSAL",
            "name": "Salinity of the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/TSED/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "TSED",
            "name": "Concentration of suspended particulate material in the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/AHGT/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "AHGT",
            "name": "Vertical spatial coordinates"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/SLCA/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "SLCA",
            "name": "Silicate concentration parameters in the water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/L13/current/U1/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/L13/current/",
            "termCode": "U1",
            "name": "upper epipelagic water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/L13/current/NS/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/L13/current/",
            "termCode": "NS",
            "name": "water column boundary layer"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/L13/current/WC/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/L13/current/",
            "termCode": "WC",
            "name": "water column"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P22/current/1/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P22/current/",
            "termCode": "1",
            "name": "Coordinate reference systems"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P22/current/28/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P22/current/",
            "termCode": "28",
            "name": "Oceanographic geographical features"
        },
        {
            "@type": "DefinedTerm",
            "identifier": "http://vocab.nerc.ac.uk/collection/P22/current/10/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P22/current/",
            "termCode": "10",
            "name": "Elevation"
        }
    ],
    "spatialCoverage": {
        "@type": "Place",
        "geo": {
            "@type": "GeoShape",
            "box": "51.0462 -1.5493 55.5021 7.748"
        },
        "additionalProperty": [
            {
                "@type": "PropertyValue",
                "propertyID": "urn:ogc:def:cs:EPSG::6498",
                "value": "urn:ogc:def:crs:EPSG:6498"
            }
        ]
    },
    "author": [
        {
            "@type": "Organization",
            "name": "Proudman Oceanographic Laboratory",
            "description": "owner",
            "email": "inapplicable",
            "telephone": "+44 (0)151 653 8633",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Bidston Observatory, Bidston Hill",
                "postalCode": "CH43 7RA",
                "addressLocality": "Prenton",
                "addressRegion": "Merseyside",
                "addressCountry": "United Kingdom"
            }
        }
    ],
    "maintainer": [
        {
            "@type": "Organization",
            "name": "British Oceanographic Data Centre",
            "description": "custodian",
            "email": "enquiries@bodc.ac.uk",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Joseph Proudman Building, 6 Brownlow Street",
                "postalCode": "L3 5DA",
                "addressLocality": "Liverpool",
                "addressRegion": "Merseyside",
                "addressCountry": "United Kingdom"
            }
        }
    ],
    "producer": [
        {
            "@type": "Organization",
            "name": "Plymouth Marine Laboratory",
            "description": "originator",
            "email": "forinfo@pml.ac.uk",
            "telephone": "+44 (0)1752 633 100",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Prospect Place, The Hoe",
                "postalCode": "PL1 3DH",
                "addressLocality": "Plymouth",
                "addressRegion": "England",
                "addressCountry": "United Kingdom"
            }
        }
    ],
    "publisher": [
        {
            "@type": "Organization",
            "name": "British Oceanographic Data Centre",
            "description": "pointOfContact",
            "email": "enquiries@bodc.ac.uk",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Joseph Proudman Building, 6 Brownlow Street",
                "postalCode": "L3 5DA",
                "addressLocality": "Liverpool",
                "addressRegion": "Merseyside",
                "addressCountry": "United Kingdom"
            }
        }
    ],
    "provider": [
        {
            "@type": "Organization",
            "name": "British Oceanographic Data Centre",
            "description": "distributor",
            "email": "enquiries@bodc.ac.uk",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Joseph Proudman Building, 6 Brownlow Street",
                "postalCode": "L3 5DA",
                "addressLocality": "Liverpool",
                "addressRegion": "Merseyside",
                "addressCountry": "United Kingdom"
            }
        }
    ],
    "creator": [
        {
            "@type": "Organization",
            "name": "Proudman Oceanographic Laboratory",
            "description": "owner",
            "email": "inapplicable",
            "telephone": "+44 (0)151 653 8633",
            "address": {
                "@type": "PostalAddress",
                "streetAddress": "Bidston Observatory, Bidston Hill",
                "postalCode": "CH43 7RA",
                "addressLocality": "Prenton",
                "addressRegion": "Merseyside",
                "addressCountry": "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."
    }
}