Dataset landingpage: GeoBasis Disko - Flux monitoring - Gas flux (EC1-Smart)

Dataset specification

  • Title: GeoBasis Disko - Flux monitoring - Gas flux (EC1-Smart)
  • Description: 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 RS enclosed gas analyzer and a Gill HS-50 sonic anemometer. Data were logged at 20 Hz and fluxes processed on a 30 minute basis using EddyPro software. The station is running West Greenland Time (UTC-3). This data-set runs from September 2019 onwards. In September 2019 a SmartFlux System was installed to synchronize measured gas concentrations and anomometer data. At the same site (10 meter north of the eddy covariance mast) there is an automatic weather station AWS2. Data from AWS2 are found under Meteorology (AWS2-Meteorology) and under Soil (AWS2-GroundTemperatureProfile1, Profile2, AWS2-SoilMoisture, AWS2-SoilHeatFlux) and under Snow (AWS2-SnowDepth, AWS2-SnowTemperature). 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: 10.17897/0D1B-2F33 - https://doi.org/10.17897/0D1B-2F33
  • Location/site: EC1-Smart - -53.514129, 69.253488 (lon-lat wgs84)
  • Date span of the dataset: 2019-09-06 - 2022-01-01

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=10.17897/0D1B-2F33

Variables measured / columns in dataset

ID Name Unit Data Type Description
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=Date Date YYYY-MM-DD Date
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=Time Time HH:MM Time West Greenland Time (UTC-3). Time stamp refer to the end of the 30 min averaging period
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=CO2_MIXING_RATIO_umol_mol-1 CO2_MIXING_RATIO_umol_mol-1 µmol mol-1 Number CO2-concentration (moles of gas per mole of dry air)
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=FC_umol_m-2_s-1 FC_umol_m-2_s-1 µmol m-2 s-1 Number CO2 flux
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=H2O_MIXING_RATIO_mmol_mol-1 H2O_MIXING_RATIO_mmol_mol-1 mmol mol-1 Number H2O-concentration (moles of gas per mole of dry air)
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=LE_W_m-2 LE_W_m-2 W m-2 Number Latent heat flux
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=H_W_m-2 H_W_m-2 W m-2 Number Sensible heat flux
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=FC_SSITC_TEST FC_SSITC_TEST Number Quality flag for CO2 gas flux: 0, 1, 2 (Mauder and Foken, 2004)
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=LE_SSITC_TEST LE_SSITC_TEST Number Quality flag for latent heat flux: 0, 1, 2 (Mauder and Foken, 2004)
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=H_SSITC_TEST H_SSITC_TEST Number Quality flag for sensible heat flux: 0, 1, 2 (Mauder and Foken, 2004)
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=USTAR_m_s-1 USTAR_m_s-1 m s-1 Number Friction velocity
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=WS_m_s-1 WS_m_s-1 m s-1 Number 30-minutes average wind speed
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=WD_deg WD_deg Deg Number 30-minutes average wind direction (true north)
http://data.g-e-m.dk/datasets?doi=10.17897/0D1B-2F33&column=WS_MAX_m_s-1 WS_MAX_m_s-1 m s-1 Number 30-minutes maximum wind speed