@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 """M3 is one of six meteorological stations in the Zackenberg and Store Sødal Valley. Data from the station is found under meteorology (wind, temperature and relative humidity, short wave and long wave radiation, as well as NDVI), soil properties (soil moisture and soil heat flux) and snow properties (snow depth).\r M3 is located on a gently south-west facing slope, half way up the mountain Aucella, in an elevation of 420 meters. The station was installed in 2003 and data recorded every half hour, except snow depth and soil moisture which was recorded every 6th hour until august 2012.\r The vegetation underneath the mast is dominated by Salix Arctica.\r Data was iniatially recorded using a CR10x Campbell scientific data logger, but this was changed to a CR1000 data logger in August 2012. \r 2017: Wind vanes A100R (measuring wind speed and gust) and W200P (wind direction and standard deviation) were exchanged with Young Alpine wind monitor (05103-45 Wind monitor), as well as temperature and relative humidity, May 13th.\r Blank cells are missing data.""" ; dct:identifier "https://data.g-e-m.dk/datasets/10.17897/7JXY-VX51" ; dct:issued "2026-05-20T13:18:37.144182"^^xsd:dateTime, "2026-05-20T16:14:35.198680"^^xsd:dateTime ; dct:modified "2026-05-20T16:14:35.186235"^^xsd:dateTime, "2026-05-20T16:14:35.189087"^^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 ((-20.4594 74.5031, -20.4594 74.5031, -20.4594 74.5031, -20.4594 74.5031))"^^gsp:wktLiteral ] ; dct:temporal [ a dct:PeriodOfTime ; dcat:endDate "2024-09-09"^^xsd:date ; dcat:startDate "2003-08-26"^^xsd:date ], [ a dct:PeriodOfTime ; dcat:endDate "2024-09-09"^^xsd:date ; dcat:startDate "2003-08-26"^^xsd:date ] ; dct:title "M3" ; 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/10.17897/7JXY-VX51" ] ; schema:name "University of Copenhagen (UCPH - Partner 3)" ] ; schema:dateModified "2026-05-20T16:14:35.186235" ; schema:datePublished "2020-01-01", "2020-01-01T00:00:00" ; schema:description """M3 is one of six meteorological stations in the Zackenberg and Store Sødal Valley. Data from the station is found under meteorology (wind, temperature and relative humidity, short wave and long wave radiation, as well as NDVI), soil properties (soil moisture and soil heat flux) and snow properties (snow depth).\r M3 is located on a gently south-west facing slope, half way up the mountain Aucella, in an elevation of 420 meters. The station was installed in 2003 and data recorded every half hour, except snow depth and soil moisture which was recorded every 6th hour until august 2012.\r The vegetation underneath the mast is dominated by Salix Arctica.\r Data was iniatially recorded using a CR10x Campbell scientific data logger, but this was changed to a CR1000 data logger in August 2012. \r 2017: Wind vanes A100R (measuring wind speed and gust) and W200P (wind direction and standard deviation) were exchanged with Young Alpine wind monitor (05103-45 Wind monitor), as well as temperature and relative humidity, May 13th.\r Blank cells are missing data.""" ; schema:distribution ; schema:identifier "https://data.g-e-m.dk/datasets/10.17897/7JXY-VX51" ; schema:keywords "ARCTIC", "ATMOSPHERE", "CLIMATE INDICATORS", "ECOSYSTEMS", "GEOGRAPHY", "GREENLAND", "PHYSICAL GEOGRAPHY" ; schema:license "https://creativecommons.org/licenses/by-sa/4.0/" ; schema:name "M3" ; 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\": [[[-20.459354400634766, 74.50310516357422], [-20.459354400634766, 74.50310516357422], [-20.459354400634766, 74.50310516357422], [-20.459354400634766, 74.50310516357422]]]}" ] ] ; schema:temporalCoverage "2003-08-26/2024-09-09" ; schema:url "https://data.g-e-m.dk/datasets/10.17897/7JXY-VX51" ; schema:variableMeasured [ a schema:PropertyValue ; schema:description "Albedo measured in %" ; schema:name "Albedo %" ; schema:propertyID ; schema:unitText "%" ; schema:url ], [ a schema:PropertyValue ; schema:description "Average wind speed over 30 min, measured approximately 190 cm above the ground surface" ; schema:name "Wind speed m/s" ; schema:propertyID ; schema:unitText "m s-1" ; schema:url ], [ a schema:PropertyValue ; schema:description "Ground temperature measured in Kelvin" ; schema:name "Temp ground °K" ; schema:propertyID ; schema:unitText "K" ; schema:url ], [ a schema:PropertyValue ; schema:name "Time" ; schema:propertyID ; schema:unitText "HH:MM" ; schema:url ], [ a schema:PropertyValue ; schema:description "Outgoing shortwave radiation measured in watts per square meter" ; schema:name "Outgoing shortwave radiation W/m^2" ; schema:propertyID ; schema:unitText "W m-2" ; schema:url ], [ a schema:PropertyValue ; schema:description "Net radiation measured in watts per square meter" ; schema:name "Net Radiation W/m^2" ; schema:propertyID ; schema:unitText "W m-2" ; schema:url ], [ a schema:PropertyValue ; schema:description "Temperature corrected incoming longwave radiation, measured in watts per square meter" ; schema:name "Incoming longwave radiation corrected W/m^2" ; schema:propertyID ; schema:unitText "W m-2" ; schema:url ], [ a schema:PropertyValue ; schema:description "Net longwave radiation measured in watts per square meter" ; schema:name "Net longwave radiation W/m^2" ; schema:propertyID ; schema:unitText "W m-2" ; schema:url ], [ a schema:PropertyValue ; schema:description "Maximum wind speed measured within the 30 min measurement period, measured approximately 190 cm above the ground surface" ; schema:name "Wind gust m/s" ; schema:propertyID ; schema:unitText "m s-1" ; schema:url ], [ a schema:PropertyValue ; schema:description "Air temperature measured in degrees celcius" ; schema:name "Air temperature °C" ; schema:propertyID ; schema:unitText "°C" ; schema:url ], [ a schema:PropertyValue ; schema:description "Net shortwave radiation measured in watts per square meter" ; schema:name "Net shortwave radiation W/m^2" ; schema:propertyID ; schema:unitText "W m-2" ; schema:url ], [ a schema:PropertyValue ; schema:description "Standard deviation of the wind direction measurements, over 30 min, , measured approximately 190 cm above the ground surface" ; schema:name "Wind direction STDEV" ; schema:propertyID ; schema:unitText "-" ; schema:url ], [ a schema:PropertyValue ; schema:description "Wind direction measured in relation to geographic north, measured approximately 190 cm above the ground surface" ; schema:name "Wind direction degrees" ; schema:propertyID ; schema:unitText "°" ; schema:url ], [ a schema:PropertyValue ; schema:description "Sky temperature measured in Kelvin" ; schema:name "Temp sky °K" ; schema:propertyID ; schema:unitText "W m-2" ; schema:url ], [ a schema:PropertyValue ; schema:description "Normalised difference vegetation index, computed from (RVI1-1)/(RVI1+1), unitless" ; schema:name "NDVI" ; schema:propertyID ; schema:unitText "µmol m-2 s-1" ; schema:url ], [ a schema:PropertyValue ; schema:description "Incoming shortwave radiation measured in watts per square meter" ; schema:name "Incoming shortwave radiation W/m^2" ; schema:propertyID ; schema:unitText "W m-2" ; schema:url ], [ a schema:PropertyValue ; schema:description "Temperature corrected Outgoing longwave radiation, measured in watts per square meter" ; schema:name "Outgoing longwave radiation corrected W/m^2" ; schema:propertyID ; schema:unitText "W m-2" ; schema:url ], [ a schema:PropertyValue ; schema:description "Relative humidity measured in %, maximum values measured were 102 %. All values above 100 % have been set to 100 %" ; schema:name "Relative Humidity %" ; schema:propertyID ; schema:unitText "%" ; schema:url ], [ a schema:PropertyValue ; schema:name "Date" ; schema:propertyID ; schema:unitText "YYYY-MM-DD" ; 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", "ATMOSPHERE", "CLIMATE INDICATORS", "ECOSYSTEMS", "GEOGRAPHY", "GREENLAND", "PHYSICAL GEOGRAPHY" ; dcat:landingPage ; dcat:theme "zackenberg-research-station" .