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    "identifier": "ba82e358e28a50f6b4cb65ae8f8fa9b9",
    "url": "http://portal.medin.org.uk/portal/?details&tpc=ba82e358e28a50f6b4cb65ae8f8fa9b9",
    "name": "Scanned images of historical (earliest data from 1870) tide gauge analogue charts and data ledgers from around the UK",
    "description": "The dataset comprises scanned images of historical analogue charts and data ledgers from eight tide gauge sites around the UK. The sites include: Sheerness, Belfast, and several sites around Liverpool managed by the Mersey Docks and Harbour Company namely, Eastham, Gladstone, Hilbre, Princes Pier, Tranmere and Waterloo. The Sheerness ledger data represents some of the earliest records of sea level data in the UK and cover the periods - January 1870 to December 1881, July 1882 to October 1894 and December 1929 to April 1941. Data availability for the other sites are: Belfast analogue charts - 27 November 1901 to 24 May 1902; Princes Pier ledgers: - 1941 to 1950, 1951 to 1960 and 1961 to 1970; Eastham, Gladstone, Hilbre, Princes Pier, Tranmere and Waterloo ledgers: - 1982 to 1988. The data recorded in some of the ledgers also describe meteorological measurements for example, air pressure, air temperature, wind speed and direction, and precipitation and evaporation. Funding to rescue these historical sea level data came from the Marine Environmental Data and Information Network (MEDIN) and the British Oceanographic Data Centre (BODC).These images have now been added to the National Oceanographic Database and are freely available to registered users (subject to licence agreement).",
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    },
    "conditionsOfAccess": [
        "access: No limitations apply",
        "access: Data are freely available to all following agreement to the terms and conditions of a Data Licence",
        "use: Usage restrictions are specified in the terms of the licence"
    ],
    "temporalCoverage": "1870-01-01/1988-12-31",
    "keywords": [
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            "termCode": "10",
            "name": "Elevation"
        },
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            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P22/current/",
            "termCode": "26",
            "name": "Atmospheric conditions"
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            "termCode": "CPRP",
            "name": "Precipitation and evaporation"
        },
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            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/ASLV/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "ASLV",
            "name": "Sea level"
        },
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            "identifier": "http://vocab.nerc.ac.uk/collection/P02/current/EWSB/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "EWSB",
            "name": "Wind strength and direction"
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            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/P02/current/",
            "termCode": "CAPH",
            "name": "Air pressure"
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            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/N01/current/",
            "termCode": "NDGO0003",
            "name": "Natural Environment Research Council Designated Data Centres"
        },
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            "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/L13/current/UK/",
            "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/L13/current/",
            "termCode": "UK",
            "name": "unknown"
        }
    ],
    "spatialCoverage": {
        "@type": "Place",
        "geo": {
            "@type": "GeoShape",
            "box": "51 -6 55 1"
        },
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                "@type": "DefinedTerm",
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                "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/C19/current/",
                "termCode": "1_2",
                "name": "North Sea"
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                "inDefinedTermSet": "http://vocab.nerc.ac.uk/collection/C19/current/",
                "termCode": "1_3",
                "name": "Inner Seas off the West Coast of Scotland"
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        "additionalProperty": [
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                "propertyID": "http://www.opengis.net/def/crs/OGC/1.3/CRS84",
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    "author": [
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            "name": "British Oceanographic Data Centre",
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                "streetAddress": "Joseph Proudman Building, 6 Brownlow Street",
                "postalCode": "L3 5DA",
                "addressLocality": "Liverpool",
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                "addressCountry": "United Kingdom"
            }
        }
    ],
    "maintainer": [
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            "description": "custodian",
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    "creator": [
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                "streetAddress": "Joseph Proudman Building, 6 Brownlow Street",
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                "addressRegion": "Merseyside",
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        "@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."
    }
}