@prefix dcat: . @prefix dct: . @prefix foaf: . @prefix gsp: . @prefix locn: . @prefix owl: . @prefix schema: . @prefix vcard: . @prefix xsd: . 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 "Eddy covariance flux measurements started in 2012. The mast (2 m high) is located about 100 m east of Arctic Station in a moist tundra site called Østerlien. It is a gentle south sloping area covered by low vegetation/dwarf shrubs. The system consist of a LICOR 7200 IRGA and Gill HS50 sonic anemometer. Data were logged at 10 Hz and fluxes processed on a 30 minutes basis using EddyPro software. The time stamp refer to UTC-3. This data-set holds data from 2012-2018. Two major gaps in the data are caused by instrument failures where instruments were shipped out for repair. A continuation of the flux measurements are found in the file: Gas flux EC1-Smart. At the same site (10 meter north of the eddy covariance mast) there is an automatic weather station; AWS2 (data from this mast are found under the sub-programme-groups: Meteorology, Soils, Snow)" ; dct:identifier "https://data.g-e-m.dk/datasets/10.17897/1WSK-1298" ; dct:issued "2026-05-20T13:17:03.968566"^^xsd:dateTime, "2026-05-20T16:13:58.804500"^^xsd:dateTime ; dct:modified "2026-05-20T16:13:58.795192"^^xsd:dateTime, "2026-05-20T16:13:58.797998"^^xsd:dateTime ; dct:publisher [ a foaf:Agent ; foaf:homepage ; foaf:name "Greenland Ecosystem Monitoring" ], [ a foaf:Agent ; foaf:homepage ; foaf:name "Greenland Ecosystem Monitoring" ] ; dct:spatial [ a dct:Location ; locn:geometry "POLYGON ((-53.5141 69.2535, -53.5141 69.2535, -53.5141 69.2535, -53.5141 69.2535))"^^gsp:wktLiteral ] ; dct:temporal [ a dct:PeriodOfTime ; dcat:endDate "2018-08-13"^^xsd:date ; dcat:startDate "2012-11-13"^^xsd:date ], [ a dct:PeriodOfTime ; dcat:endDate "2018-08-13"^^xsd:date ; dcat:startDate "2012-11-13"^^xsd:date ] ; dct:title "Gas flux (EC1)" ; schema:about [ a schema:Thing ; schema:name "arctic-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/10.17897/1WSK-1298" ] ; schema:name "University of Copenhagen (UCPH - Partner 3)" ] ; schema:dateModified "2026-05-20T16:13:58.795192" ; schema:datePublished "2020-01-01", "2020-01-01T00:00:00" ; schema:description "Eddy covariance flux measurements started in 2012. The mast (2 m high) is located about 100 m east of Arctic Station in a moist tundra site called Østerlien. It is a gentle south sloping area covered by low vegetation/dwarf shrubs. The system consist of a LICOR 7200 IRGA and Gill HS50 sonic anemometer. Data were logged at 10 Hz and fluxes processed on a 30 minutes basis using EddyPro software. The time stamp refer to UTC-3. This data-set holds data from 2012-2018. Two major gaps in the data are caused by instrument failures where instruments were shipped out for repair. A continuation of the flux measurements are found in the file: Gas flux EC1-Smart. At the same site (10 meter north of the eddy covariance mast) there is an automatic weather station; AWS2 (data from this mast are found under the sub-programme-groups: Meteorology, Soils, Snow)" ; schema:distribution ; schema:identifier "https://data.g-e-m.dk/datasets/10.17897/1WSK-1298" ; schema:keywords "ARCTIC", "ARCTIC TUNDRA", "CARBON FLUX", "CLIMATE INDICATORS", "ECOSYSTEMS", "GEOGRAPHY", "GREENLAND", "PHYSICAL GEOGRAPHY" ; schema:license "https://creativecommons.org/licenses/by-sa/4.0/" ; schema:name "Gas flux (EC1)" ; 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\": [[[-53.514129638671875, 69.25348663330078], [-53.514129638671875, 69.25348663330078], [-53.514129638671875, 69.25348663330078], [-53.514129638671875, 69.25348663330078]]]}" ] ] ; schema:temporalCoverage "2012-11-13/2018-08-13" ; schema:url "https://data.g-e-m.dk/datasets/10.17897/1WSK-1298" ; schema:variableMeasured [ a schema:PropertyValue ; schema:name "Date" ; schema:propertyID ; schema:unitText "YYYY-MM-DD" ; schema:url ], [ a schema:PropertyValue ; schema:description "Measurement of wind direction degrees from North averaged over 30 minute bin" ; schema:name "Wind direction_deg" ; schema:propertyID ; schema:unitText "degree" ; schema:url ], [ a schema:PropertyValue ; schema:description "Eddy covariance measurement of land-atmosphere exchange of sensible heat" ; schema:name "Sensible heat flux_Wm-2" ; schema:propertyID ; schema:unitText "W m-2" ; schema:url ], [ a schema:PropertyValue ; schema:description "Maximum windspeed registered within this 30 minutes interval" ; schema:name "Wind speed max_ms-1" ; schema:propertyID ; schema:unitText "m s-1" ; schema:url ], [ a schema:PropertyValue ; schema:description "Measurement of wind speed averaged over 30 minute bin" ; schema:name "Wind speed avg_ms-1" ; schema:propertyID ; schema:unitText "m s-1" ; schema:url ], [ a schema:PropertyValue ; schema:description "Eddy covariance measurement of land-atmosphere exchange of CO2" ; schema:name "CO2 flux_µmolm-2s-1" ; schema:propertyID ; schema:unitText "µmol m-2 s-1" ; schema:url ], [ a schema:PropertyValue ; schema:description "Eddy covariance measurement of land-atmosphere exchange of latent heat" ; schema:name "Latent heat flux_Wm-2" ; schema:propertyID ; schema:unitText "W m-2" ; schema:url ], [ a schema:PropertyValue ; schema:description "UTC-3. Time stamp refer to the end of the 30 min averaging period" ; schema:name "Time" ; schema:propertyID ; schema:unitText "HH:MM:SS" ; schema:url ] ; schema:version "1" ; owl:versionInfo "1" ; dcat:accessURL ; dcat:contactPoint [ a vcard:Organization ; vcard:fn "[{\"author_name\": \"Greenland Ecosystem Monitoring\"}]" ] ; dcat:distribution ; dcat:keyword "ARCTIC", "ARCTIC TUNDRA", "CARBON FLUX", "CLIMATE INDICATORS", "ECOSYSTEMS", "GEOGRAPHY", "GREENLAND", "PHYSICAL GEOGRAPHY" ; dcat:landingPage ; dcat:theme "arctic-station" .