@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 """M2 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 M2 is located on a south facing slope in side the ZEROCALM-2 grid, in which active layer is monitored. The vegetation underneath the mast is dominated by salix arctica. \r Measurements at this station were initiated on the 5th of August 2003. \r The meteological data at M2 is recorded every half hour.\r Between 2003-2012 data was recorded using a CR10x campbell scientific data logger. In August 2012 this was changed to a CR1000 data logger.\r As the station is situated on a southfacing slope (dominating leeward side during winter in Zackenberg), the station has been covered in snow during several winters. E.g. during the winter 2014-15, whereafter the mast was tilted slightly towards the south. The tilt was corrected for on the 5th of August 2015 and we estimate that the tilt resulted in incoming shortwave radiation measurements of ~5 % more compared to earlier years. Unfortunately the tilt cannot be corrected for, as the correct inclination is unknown. \r Blank cells are missing values due to snow burial, power problems, broken sensors, data logger change, etc. \r Major data fall outs are:\r 2004: 2004.01.27 - 2004-02-08 and then every day until 2004.02.18 due to low battery voltage.\r 2005: 2005-01-06 - 2005.05.20 (except for two recordings in february), because the mast was out of level due to the weight of snow.\r 2006: 2006.02.11 - 2006.02.21 due to low battery voltage.\r 2008: 2008.02.10 - 2008.02.13 due to burial in snow and again from 2008.02.24 - 2008-05-13. During this burial the mast was compltely broken and all sensors that require the mast to be in level in order to give accurate measurements are missing until a new mast was installed 2008.08.13. Windsensors were also damaged during this burial, replaced in 2009.\r 2009: 2009.02.08 - 2009.03.24 daily dropouts due to low battery voltage.\r 2010: 2010-01-28 - 2010.05.29 due to dead internal battery.\r 2011: Several holes in October, due to batteryproblems, station dies 2011.11.17 due to low battery voltage, starts again 2012.04.14.\r 2012: 2011.11.17 - 2012.04.14 the station was also completely buried in snow and wind cup anemomter broken. Data from 2012.04.19 - 2012.05.02 is missing due to battery problems. And 2012.08.18 - 2012.08.25 due to data logger change.\r 2013: 2013.04.27 - 2013.04.30 due to problems with memorycard.\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, April 29th.\r 2018: 2018-02 - 2018-06: due to snow burial.""" ; dct:identifier "https://data.g-e-m.dk/datasets/10.17897/7WAM-6143" ; dct:issued "2026-05-20T13:18:35.575615"^^xsd:dateTime, "2026-05-20T16:14:34.376807"^^xsd:dateTime ; dct:modified "2026-05-20T16:14:34.368554"^^xsd:dateTime, "2026-05-20T16:14:34.371211"^^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 ((-20.5632 74.4655, -20.5632 74.4655, -20.5632 74.4655, -20.5632 74.4655))"^^gsp:wktLiteral ] ; dct:temporal [ a dct:PeriodOfTime ; dcat:endDate "2024-09-16"^^xsd:date ; dcat:startDate "2003-08-05"^^xsd:date ], [ a dct:PeriodOfTime ; dcat:endDate "2024-09-16"^^xsd:date ; dcat:startDate "2003-08-05"^^xsd:date ] ; dct:title "M2" ; 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/10.17897/7WAM-6143" ] ; schema:name "University of Copenhagen (UCPH - Partner 3)" ] ; schema:dateModified "2026-05-20T16:14:34.368554" ; schema:datePublished "2020-01-01", "2020-01-01T00:00:00" ; schema:description """M2 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 M2 is located on a south facing slope in side the ZEROCALM-2 grid, in which active layer is monitored. The vegetation underneath the mast is dominated by salix arctica. \r Measurements at this station were initiated on the 5th of August 2003. \r The meteological data at M2 is recorded every half hour.\r Between 2003-2012 data was recorded using a CR10x campbell scientific data logger. In August 2012 this was changed to a CR1000 data logger.\r As the station is situated on a southfacing slope (dominating leeward side during winter in Zackenberg), the station has been covered in snow during several winters. E.g. during the winter 2014-15, whereafter the mast was tilted slightly towards the south. The tilt was corrected for on the 5th of August 2015 and we estimate that the tilt resulted in incoming shortwave radiation measurements of ~5 % more compared to earlier years. Unfortunately the tilt cannot be corrected for, as the correct inclination is unknown. \r Blank cells are missing values due to snow burial, power problems, broken sensors, data logger change, etc. \r Major data fall outs are:\r 2004: 2004.01.27 - 2004-02-08 and then every day until 2004.02.18 due to low battery voltage.\r 2005: 2005-01-06 - 2005.05.20 (except for two recordings in february), because the mast was out of level due to the weight of snow.\r 2006: 2006.02.11 - 2006.02.21 due to low battery voltage.\r 2008: 2008.02.10 - 2008.02.13 due to burial in snow and again from 2008.02.24 - 2008-05-13. During this burial the mast was compltely broken and all sensors that require the mast to be in level in order to give accurate measurements are missing until a new mast was installed 2008.08.13. Windsensors were also damaged during this burial, replaced in 2009.\r 2009: 2009.02.08 - 2009.03.24 daily dropouts due to low battery voltage.\r 2010: 2010-01-28 - 2010.05.29 due to dead internal battery.\r 2011: Several holes in October, due to batteryproblems, station dies 2011.11.17 due to low battery voltage, starts again 2012.04.14.\r 2012: 2011.11.17 - 2012.04.14 the station was also completely buried in snow and wind cup anemomter broken. Data from 2012.04.19 - 2012.05.02 is missing due to battery problems. And 2012.08.18 - 2012.08.25 due to data logger change.\r 2013: 2013.04.27 - 2013.04.30 due to problems with memorycard.\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, April 29th.\r 2018: 2018-02 - 2018-06: due to snow burial.""" ; schema:distribution ; schema:identifier "https://data.g-e-m.dk/datasets/10.17897/7WAM-6143" ; schema:keywords "ARCTIC", "ATMOSPHERE", "CLIMATE INDICATORS", "ECOSYSTEMS", "GEOGRAPHY", "GREENLAND", "PHYSICAL GEOGRAPHY" ; schema:license "https://creativecommons.org/licenses/by-sa/4.0/" ; schema:name "M2" ; 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\": [[[-20.563194274902344, 74.46549224853516], [-20.563194274902344, 74.46549224853516], [-20.563194274902344, 74.46549224853516], [-20.563194274902344, 74.46549224853516]]]}" ] ] ; schema:temporalCoverage "2003-08-05/2024-09-16" ; schema:url "https://data.g-e-m.dk/datasets/10.17897/7WAM-6143" ; schema:variableMeasured [ 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 "-" ; schema:name "Date" ; schema:propertyID ; schema:unitText "YYYY-MM-DD" ; 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 "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:description "Maximum wind speed measured within the 30 min measurement period, measured approximately 250 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 "Sky temperature measured in Kelvin" ; schema:name "Temp sky °K" ; schema:propertyID ; schema:unitText "W m-2" ; 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 "Albedo measured in %" ; schema:name "Albedo %" ; schema:propertyID ; schema:unitText "%" ; schema:url ], [ a schema:PropertyValue ; schema:description "Wind direction measured in relation to geographic north, , measured approximately 250 cm above the ground surface" ; schema:name "Wind direction degrees" ; schema:propertyID ; schema:unitText "°" ; 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 "Air temperature measured in degrees celcius" ; schema:name "Air temperature °C" ; schema:propertyID ; schema:unitText "°C" ; 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 "-" ; schema:name "Time" ; schema:propertyID ; schema:unitText "HH:MM" ; 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 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 "Ground temperature measured in Kelvin" ; schema:name "Temp ground °K" ; schema:propertyID ; schema:unitText "K" ; schema:url ], [ a schema:PropertyValue ; schema:description "Standard deviation of the wind direction measurements, over 30 min, , measured approximately 250 cm above the ground surface" ; schema:name "Wind direction STDEV" ; schema:propertyID ; schema:unitText "-" ; schema:url ], [ a schema:PropertyValue ; schema:description "Normalised difference vegetation index, computed from (RVI2-1)/(RVI2+1), unitless" ; schema:name "NDVI" ; schema:propertyID ; schema:unitText "-" ; schema:url ], [ a schema:PropertyValue ; schema:description "Average wind speed over 30 min, measured approximately 250 cm above the ground surface" ; schema:name "Wind speed m/s" ; schema:propertyID ; schema:unitText "m s-1" ; 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" .