@prefix dcat: <http://www.w3.org/ns/dcat#> .
@prefix dct: <http://purl.org/dc/terms/> .
@prefix foaf: <http://xmlns.com/foaf/0.1/> .
@prefix gsp: <http://www.opengis.net/ont/geosparql#> .
@prefix locn: <http://www.w3.org/ns/locn#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://ckan.publishing.service.gov.uk/dataset/815ed635-4923-4073-ab5a-b4589bf67735> a dcat:Dataset ;
    dct:description "This is part of an ongoing long-term monitoring dataset of surface temperature, surface oxygen, water clarity, water chemistry and phytoplankton chlorophyll a from fortnightly sampling at Blelham Tarn in Cumbria, England that began in 1945 for some variables. The data have been collected by the UK Centre for Ecology & Hydrology (UKCEH). The data available to download comprise surface temperature (TEMP) in degree Celsius, surface oxygen saturation (OXYG) in % air-saturation, Secchi depth (SECC) in metres, alkalinity (ALKA) in µg per litre as CaCO3 and pH. Ammonium (NH4N), nitrate (NO3N), soluble reactive phosphate (PO4P), total phosphorus (TOTP), dissolved reactive silicon expressed as SiO2 (SIO2) and phytoplankton chlorophyll a (TOCA) are all given in µg per litre. Water samples are based on a sample integrated from 0 to 5 m. All data are from January 2019 until the end of 2020. Full details about this dataset can be found at https://doi.org/10.5285/dd35316a-cecc-4f6d-9a21-74a0f6599e9e" ;
    dct:identifier "dd35316a-cecc-4f6d-9a21-74a0f6599e9e" ;
    dct:issued "2024-05-13T14:07:56.369708"^^xsd:dateTime ;
    dct:modified "2026-04-16T10:12:38.421475"^^xsd:dateTime ;
    dct:publisher <https://ckan.publishing.service.gov.uk/organization/866f4088-ae4f-43b8-ba8c-6d3141a327f2> ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-2.9730 54.3930, -2.9850 54.3930, -2.9850 54.3990, -2.9730 54.3990, -2.9730 54.3930))"^^gsp:wktLiteral,
                "{\"type\": \"Polygon\", \"coordinates\": [[[-2.973, 54.393], [-2.985, 54.393], [-2.985, 54.399], [-2.973, 54.399], [-2.973, 54.393]]]}"^^<https://www.iana.org/assignments/media-types/application/vnd.geo+json> ] ;
    dct:title "Surface temperature, surface oxygen, water clarity, water chemistry and phytoplankton chlorophyll a data from Blelham Tarn, 2019-2020" ;
    dcat:distribution <https://ckan.publishing.service.gov.uk/dataset/815ed635-4923-4073-ab5a-b4589bf67735/resource/26205c7a-3be6-4331-8219-b3b8a553b17d>,
        <https://ckan.publishing.service.gov.uk/dataset/815ed635-4923-4073-ab5a-b4589bf67735/resource/61fc6058-a4c4-4e60-9aea-204cde733cac> ;
    dcat:keyword "Environmental Monitoring Facilities",
        "Lake District",
        "Secchi depth",
        "algae",
        "lake monitoring",
        "lake water chemistry",
        "lake water temperature" .

<https://ckan.publishing.service.gov.uk/dataset/815ed635-4923-4073-ab5a-b4589bf67735/resource/26205c7a-3be6-4331-8219-b3b8a553b17d> a dcat:Distribution ;
    dct:description "Download a copy of this data" ;
    dct:issued "2026-04-16T10:12:38.493549"^^xsd:dateTime ;
    dct:modified "2026-04-16T10:12:38.430303"^^xsd:dateTime ;
    dct:title "Download the data" ;
    dcat:accessURL <https://data-package.ceh.ac.uk/data/dd35316a-cecc-4f6d-9a21-74a0f6599e9e> .

<https://ckan.publishing.service.gov.uk/dataset/815ed635-4923-4073-ab5a-b4589bf67735/resource/61fc6058-a4c4-4e60-9aea-204cde733cac> a dcat:Distribution ;
    dct:description "Supporting information available to assist in re-use of this dataset" ;
    dct:format "ZIP" ;
    dct:issued "2026-04-16T10:12:38.493552"^^xsd:dateTime ;
    dct:modified "2026-04-16T10:12:38.430378"^^xsd:dateTime ;
    dct:title "Supporting information" ;
    dcat:accessURL <https://data-package.ceh.ac.uk/sd/dd35316a-cecc-4f6d-9a21-74a0f6599e9e.zip> ;
    dcat:mediaType "application/zip" .

<https://ckan.publishing.service.gov.uk/organization/866f4088-ae4f-43b8-ba8c-6d3141a327f2> a foaf:Organization ;
    foaf:name "Environmental Information Data Centre" .