Dataset specification
- Title: GeoBasis Disko - Flux monitoring - Gas flux (EC1)
- Description: Eddy covariance flux measurements has taken place since 2012. The mast (2 m high) is located about 150 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 minute basis using EddyPro software. The station is running West Greenland Time (UTC-0300). Two major gaps in the data are caused by instrument failures where instruments had to be shipped out for repair. At the same site (10 meter north of the eddy covariance mast) there is an automatic weather station; AWS2 (data from this mast can be found under the sub programme-group: Meteorology) Flux monitoring:Flux monitoring GeoBasis Disko:The GeoBasis monitoring programme focuses on selected abiotic characteristics in order to describe the state of Greenlandic terrestrial environments and their potential feedback effects in a changing climate. Monitored plot data is up-scaled to a landscape level and is used to improve ecosystem models to be able to quantify these feedback mechanisms. The GeoBasis programme provides an active response to recommendations in international assessments such as ACIA and SWIPA; and is continuously being adapted based on AMAP and other international founded recommendations. Furthermore, the GeoBasis programme is directly involved in several international networks and research projects (e.g. the Circumpolar Active Layer Monitoring (CALM) programme, the Nordic Centre of Excellence DEFROST, the Danish Centre of Excellence CENPERM, the EU-projects PAGE21 and INTERACT, and the Arctic Research Centre at Aarhus University). The GeoBasis programme is divided into a number of sub-groups, including:
- DOI: 10.17897/1WSK-1298 - https://doi.org/10.17897/1WSK-1298
- Location/site: EC1 - -53.5141296386719, 69.2534866333008 (lon-lat wgs84)
- Date span of the dataset: 2012-11-13 - 2018-08-13
Data originator, license and how to download the dataset
The dataset is a product of the Greenland Ecosystem Monitoring program (GEM): https://grid.ac/institutes/grid.507580.f. It is free and open data, licensed with terms of use under the Creative Commons CC-BY-SA license: https://creativecommons.org/licenses/by-sa/4.0/ When downloading you will automatically get a terms of use document, describing how to cite the data and other important information.
Download the dataset via this link (registration needed): http://data.g-e-m.dk/log-in/data-tables?doi=10.17897/1WSK-1298
Variables measured / columns in dataset
| ID | Name | Unit | Data Type | Description |
|---|---|---|---|---|
| http://data.g-e-m.dk/datasets?doi=10.17897/1WSK-1298&column=Date | Date | YYYY-MM-DD | Date | |
| http://data.g-e-m.dk/datasets?doi=10.17897/1WSK-1298&column=Time | Time | HH:MM:SS | Time | West Greenland Time (UTC-3) |
| http://data.g-e-m.dk/datasets?doi=10.17897/1WSK-1298&column=CO2+flux_%c2%b5molm-2s-1 | CO2 flux_µmolm-2s-1 | µmol m-2 s-1 | Number | Eddy covariance measurement of land-atmosphere exchange of CO2 |
| http://data.g-e-m.dk/datasets?doi=10.17897/1WSK-1298&column=Sensible+heat+flux_Wm-2 | Sensible heat flux_Wm-2 | W m-2 | Number | Eddy covariance measurement of land-atmosphere exchange of sensible heat |
| http://data.g-e-m.dk/datasets?doi=10.17897/1WSK-1298&column=Latent+heat+flux_Wm-2 | Latent heat flux_Wm-2 | W m-2 | Number | Eddy covariance measurement of land-atmosphere exchange of latent heat |
| http://data.g-e-m.dk/datasets?doi=10.17897/1WSK-1298&column=Wind+direction_deg | Wind direction_deg | degree | Number | Measurement of wind direction degrees from North averaged over 30 minute bin |
| http://data.g-e-m.dk/datasets?doi=10.17897/1WSK-1298&column=Wind+speed+max_ms-1 | Wind speed max_ms-1 | m s-1 | Number | Maximum windspeed registered within this 30 minutes interval |