Gas flux (EC1)

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)

Data and Resources

This dataset has no data

Additional Info

Field Value
Source https://data.g-e-m.dk/datasets/10.17897/1WSK-1298
Version 1
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Temporal coverage 1
Temporal coverage start
2012-11-13
Temporal coverage end
2018-08-13
Spatial coverage { "coordinates": [ [ [ -53.514129638671875, 69.25348663330078 ], [ -53.514129638671875, 69.25348663330078 ], [ -53.514129638671875, 69.25348663330078 ], [ -53.514129638671875, 69.25348663330078 ] ] ], "type": "Polygon" }
Station
Collaborator
Variable measured 1
Variable name
Date
Variable description
Variable unit
YYYY-MM-DD
Variable URL
https://data.g-e-m.dk/datasets/10.17897/1WSK-1298#column=Date
Variable measured 2
Variable name
Time
Variable description
UTC-3. Time stamp refer to the end of the 30 min averaging period
Variable unit
HH:MM:SS
Variable URL
https://data.g-e-m.dk/datasets/10.17897/1WSK-1298#column=Time
Variable measured 3
Variable name
CO2 flux_µmolm-2s-1
Variable description
Eddy covariance measurement of land-atmosphere exchange of CO2
Variable unit
µmol m-2 s-1
Variable URL
https://data.g-e-m.dk/datasets/10.17897/1WSK-1298#column=CO2+flux_%C2%B5molm-2s-1
Variable measured 4
Variable name
Sensible heat flux_Wm-2
Variable description
Eddy covariance measurement of land-atmosphere exchange of sensible heat
Variable unit
W m-2
Variable URL
https://data.g-e-m.dk/datasets/10.17897/1WSK-1298#column=Sensible+heat+flux_Wm-2
Variable measured 5
Variable name
Latent heat flux_Wm-2
Variable description
Eddy covariance measurement of land-atmosphere exchange of latent heat
Variable unit
W m-2
Variable URL
https://data.g-e-m.dk/datasets/10.17897/1WSK-1298#column=Latent+heat+flux_Wm-2
Variable measured 6
Variable name
Wind direction_deg
Variable description
Measurement of wind direction degrees from North averaged over 30 minute bin
Variable unit
degree
Variable URL
https://data.g-e-m.dk/datasets/10.17897/1WSK-1298#column=Wind+direction_deg
Variable measured 7
Variable name
Wind speed avg_ms-1
Variable description
Measurement of wind speed averaged over 30 minute bin
Variable unit
m s-1
Variable URL
https://data.g-e-m.dk/datasets/10.17897/1WSK-1298#column=Wind+speed+avg_ms-1
Variable measured 8
Variable name
Wind speed max_ms-1
Variable description
Maximum windspeed registered within this 30 minutes interval
Variable unit
m s-1
Variable URL
https://data.g-e-m.dk/datasets/10.17897/1WSK-1298#column=Wind+speed+max_ms-1
Measurement Technique
    Date published
    Status
    Publisher 1
    Publisher name
    Greenland Ecosystem Monitoring
    Publisher URL
    https://data.g-e-m.dk