Carbondioxide flux

Carbon fluxes are measured weekly. The vegetation in the CO2 flux plots is dominated by Empetrum nigrum heath with Salix glauca as subdominant species. Soil moisture is measured in all plots. Temperature is recorded by wireless GeoPrecision mini data loggers. For further details, please refer to the newest BioBasis manual available at the website.

Data and Resources

This dataset has no data

Additional Info

Field	Value
Source	https://data.g-e-m.dk/datasets/10.17897/46HF-DC31
Version	1
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	Temporal coverage 1 Temporal coverage start 2008-06-06 Temporal coverage end 2024-10-03
Spatial coverage	{ "coordinates": [ [ [ -51.38, 64.13 ], [ -51.38, 64.13 ], [ -51.38, 64.13 ], [ -51.38, 64.13 ] ] ], "type": "Polygon" }
Station
Collaborator
	Variable measured 1 Variable name Date Variable description Date of measurement Variable unit Date Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Date Variable measured 2 Variable name Time Variable description Time of measurement (local time). Prior to 2023-10-28 West Greenland time zone was UTC -03:00 (UTC -02:00 during day light savings, aka summer time, which is from the last sunday in March to the last sunday in October). After 2023-10-28 West Greenland changed time zone to UTC -02:00 (UTC -02:00 during day light savings aka summer time) Variable unit Hour Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Time Variable measured 3 Variable name Plot Variable description Plot number Variable unit Text Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Plot Variable measured 4 Variable name Treatment Variable description C, SG, LG = control, S = shading by hessian tents, T = increased temperature using ITEX Plexiglas hexagons. Variable unit Text Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Treatment Variable measured 5 Variable name Latitude Variable description Latitude of plot Variable unit Number Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Latitude Variable measured 6 Variable name Longitude Variable description Logitude of plot Variable unit Number Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Longitude Variable measured 7 Variable name Light Variable description L: light measurement using transparent chamber, D: dark measurement using darkened chamber (text). Variable unit Text Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Light Variable measured 8 Variable name CO2_flux_mgCO2m-2h-1 Variable description Calculated CO2 fluxes (mg CO2/m2/h) by using linear fit (2008, 2010 and onwards) and quadratic fit (2009). Fitting of curve is optimized by maximizing r2 values (numeric). Variable unit mgCO2/m2/h Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=CO2_flux_mgCO2m-2h-1 Variable measured 9 Variable name Cloud_cover Variable description Estimated cloud cover ranging 0 (clear skies) to 8 (overcast) Variable unit X/8 Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Cloud_cover Variable measured 10 Variable name PAR_Âµmolm-2s-1 Variable description Mean amount of incoming photosynthetic active radiation (Âµmol/m2/s) from inside chamber during measurement (numeric) Variable unit Âµmol/m2/s Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=PAR_%C2%B5molm-2s-1 Variable measured 11 Variable name Air_temperature_degC Variable description Mean air temperature (deg C) from inside chamber during measurement (numeric) Variable unit Celcius Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Air_temperature_degC Variable measured 12 Variable name Soil_moisture_% Variable description Mean soil moisture content (%) based on three measurements (numeric) Variable unit % Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Soil_moisture_%25 Variable measured 13 Variable name Air_pressure_hPa Variable description Mean air pressure (hPa) from inside chamber during measurement (numeric) Variable unit hPa Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Air_pressure_hPa Variable measured 14 Variable name Gas_analyzer Variable description Gas analyzer Variable unit Text Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Gas_analyzer Variable measured 15 Variable name Remarks Variable description Remarks Variable unit Text Variable URL https://data.g-e-m.dk/datasets/10.17897/46HF-DC31#column=Remarks
Measurement Technique
Date published
Status
	Publisher 1 Publisher name Greenland Ecosystem Monitoring Publisher URL https://data.g-e-m.dk