@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 owl: <http://www.w3.org/2002/07/owl#> .
@prefix schema: <http://schema.org/> .
@prefix vcard: <http://www.w3.org/2006/vcard/ns#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

<https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40> a schema:DataDownload,
        schema:Dataset,
        dcat:Dataset,
        dcat:Distribution,
        foaf:Document ;
    dct:bibliographicCitation "Read the documentation, GEM terms of use and how to cite: https://data.g-e-m.dk/guides. Please get in touch with the GEM secretariat if you need help to cite correctly." ;
    dct:description "Repeated high precision differential GPS observations of stakes from 2008 to 2013" ;
    dct:identifier "https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40" ;
    dct:issued "2026-05-20T13:20:47.038699"^^xsd:dateTime,
        "2026-05-20T16:15:26.718204"^^xsd:dateTime ;
    dct:modified "2026-05-20T16:15:26.707560"^^xsd:dateTime,
        "2026-05-20T16:15:26.710488"^^xsd:dateTime ;
    dct:publisher [ a foaf:Agent ;
            foaf:homepage <https://data.g-e-m.dk> ;
            foaf:name "Greenland Ecosystem Monitoring" ],
        [ a foaf:Agent ;
            foaf:homepage <https://data.g-e-m.dk> ;
            foaf:name "Greenland Ecosystem Monitoring" ] ;
    dct:spatial [ a dct:Location ;
            locn:geometry "POLYGON ((-21.6000 74.6500, -21.6000 74.6500, -21.6000 74.6500, -21.6000 74.6500))"^^gsp:wktLiteral ] ;
    dct:temporal [ a dct:PeriodOfTime ;
            dcat:endDate "2013-04-28"^^xsd:date ;
            dcat:startDate "2008-04-01"^^xsd:date ],
        [ a dct:PeriodOfTime ;
            dcat:endDate "2013-04-28"^^xsd:date ;
            dcat:startDate "2008-04-01"^^xsd:date ] ;
    dct:title "GPS sites" ;
    schema:about [ a schema:Thing ;
            schema:name "zackenberg-research-station" ] ;
    schema:citation "Read the documentation, GEM terms of use and how to cite: https://data.g-e-m.dk/guides. Please get in touch with the GEM secretariat if you need help to cite correctly." ;
    schema:creator [ a schema:Organization ;
            schema:contactPoint [ a schema:ContactPoint ;
                    schema:contactType "customer service" ;
                    schema:name "University of Copenhagen (UCPH - Partner 3)" ;
                    schema:url "https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40" ] ;
            schema:name "University of Copenhagen (UCPH - Partner 3)" ] ;
    schema:dateModified "2026-05-20T16:15:26.707560" ;
    schema:datePublished "2020-01-01",
        "2020-01-01T00:00:00" ;
    schema:description "Repeated high precision differential GPS observations of stakes from 2008 to 2013" ;
    schema:distribution <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40> ;
    schema:identifier "https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40" ;
    schema:keywords "ARCTIC",
        "CLIMATE INDICATORS",
        "CRYOSPHERE",
        "ECOSYSTEMS",
        "GLACIAL MEASUREMENTS",
        "GLACIERS-ICE SHEETS",
        "GREENLAND" ;
    schema:license "https://creativecommons.org/licenses/by-sa/4.0/" ;
    schema:name "GPS sites" ;
    schema:publisher [ a schema:Organization ;
            schema:contactPoint [ a schema:ContactPoint ;
                    schema:contactType "customer service" ;
                    schema:name "Greenland Ecosystem Monitoring" ;
                    schema:url "https://data.g-e-m.dk" ] ;
            schema:name "Greenland Ecosystem Monitoring" ] ;
    schema:spatialCoverage [ a schema:Place ;
            schema:geo [ a schema:GeoShape ;
                    schema:polygon "{\"type\": \"Polygon\", \"coordinates\": [[[-21.600000381469727, 74.6500015258789], [-21.600000381469727, 74.6500015258789], [-21.600000381469727, 74.6500015258789], [-21.600000381469727, 74.6500015258789]]]}" ] ] ;
    schema:temporalCoverage "2008-04-01/2013-04-28" ;
    schema:url "https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40" ;
    schema:variableMeasured [ a schema:PropertyValue ;
            schema:description "Observed altitude of the surface as close to the stake as possible." ;
            schema:name "Altitude (m)" ;
            schema:propertyID <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Altitude+(m)> ;
            schema:unitText "M" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Altitude+(m)> ],
        [ a schema:PropertyValue ;
            schema:description "Name of the stake to compare the position from different years." ;
            schema:name "Stake name" ;
            schema:propertyID <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Stake+name> ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Stake+name> ],
        [ a schema:PropertyValue ;
            schema:description "time" ;
            schema:name "Time" ;
            schema:propertyID <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Time> ;
            schema:unitText "Date" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Time> ],
        [ a schema:PropertyValue ;
            schema:description "date" ;
            schema:name "Date" ;
            schema:propertyID <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Date> ;
            schema:unitText "Date" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Date> ],
        [ a schema:PropertyValue ;
            schema:description "Observed latitude of the stake" ;
            schema:name "Latitude" ;
            schema:propertyID <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Latitude> ;
            schema:unitText "Decimal degrees" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Latitude> ],
        [ a schema:PropertyValue ;
            schema:description "Observed latitude of the stake" ;
            schema:name "Longitude" ;
            schema:propertyID <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Longitude> ;
            schema:unitText "Decimal degrees" ;
            schema:url <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40#column=Longitude> ] ;
    schema:version "1" ;
    owl:versionInfo "1" ;
    dcat:accessURL <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40> ;
    dcat:contactPoint [ a vcard:Organization ;
            vcard:fn "[{\"author_name\": \"Greenland Ecosystem Monitoring\"}]" ] ;
    dcat:distribution <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40> ;
    dcat:keyword "ARCTIC",
        "CLIMATE INDICATORS",
        "CRYOSPHERE",
        "ECOSYSTEMS",
        "GLACIAL MEASUREMENTS",
        "GLACIERS-ICE SHEETS",
        "GREENLAND" ;
    dcat:landingPage <https://data.g-e-m.dk/datasets/10.17897/9YNG-0J40> ;
    dcat:theme "zackenberg-research-station" .