Dataset specification
- Title: BioBasis Nuuk - Vegetation - Carbon flux measurements
- Description: 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. Vegetation:Vegetation BioBasis Nuuk:The BioBasis programme monitors the dynamics of organisms and biological processes in the terrestrial and limnic ecosystems at Zackenberg and Nuuk. The BioBasis programme plays a central role in the development and implementation of the Circumpolar Biodiversity Monitoring Programme (CBMP) http://www.caff.is/monitoring across the Arctic.
- DOI: 10.17897/46HF-DC31 - https://doi.org/10.17897/46HF-DC31
- Location/site: Permanent plots - -51.38, 64.13 (lon-lat wgs84)
- Date span of the dataset: 2008-06-06 - 2021-09-29
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=10.17897/46HF-DC31
Variables measured / columns in dataset
| ID | Name | Unit | Data Type | Description |
|---|---|---|---|---|
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Date | Date | Date | Date | Date of measurement |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Time | Time | Hour | Time | Time of measurement (UTC) |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Plot | Plot | Text | Text | Plot number (numeric) |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Treatment | Treatment | Text | Text | C = control, SG = addition of snow in spring, LG = removal of snow in spring, S = shading by hessian tents, T = increased temperature using ITEX Plexiglas hexagons (text). |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Light | Light | Text | Text | L: light measurement using transparent chamber, D: dark measurement using darkened chamber (text). |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=CO2_flux_mgCO2m-2h-1 | CO2_flux_mgCO2m-2h-1 | mgCO2/m2/h | Number | 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). |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Cloud_cover | Cloud_cover | X/8 | Number | Estimated cloud cover ranging 0 (clear skies) to 8 (overcast) |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Air_temperature_degC | Air_temperature_degC | Celcius | Number | Mean air temperature (deg C) from inside chamber during measurement (numeric) |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Soil_moisture_%25 | Soil_moisture_% | % | Number | Mean soil moisture content (%) based on three measurements (numeric) |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Air_pressure_hPa | Air_pressure_hPa | hPa | Number | Mean air pressure (hPa) from inside chamber during measurement (numeric) |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Remarks | Remarks | Text | Text | Remarks from the field observer(s) |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=PAR_%c2%b5molm-2s-1 | PAR_µmolm-2s-1 | µmol/m2/s | Number | Mean amount of incoming photosynthetic active radiation (µmol/m2/s) from inside chamber during measurement (numeric) |
| http://data.g-e-m.dk/datasets?doi=10.17897/46HF-DC31&column=Flux_instrument | Flux_instrument | Text | Text | Type of flux measuring instrument |