Dataset landingpage: GeoBasis Zackenberg - Snow properties - Snow density (snow pit)

Dataset specification

  • Title: GeoBasis Zackenberg - Snow properties - Snow density (snow pit)
  • Description: Snow density is measured manually in snow pits, various places in the Zackenberg valley, during snow covered periods. In this dataset every position is given with its UTM coordinates (WGS 84, UTM Zone 27N) and with the name of the location, where measurements are conducted in the vicinity of existing plots. The densities are never sampled within the existing plots (unless otherwise stated), but in a radius of at least 10 meters from the plot, in an area in which the conditions and characteristics of the snowpack are similar to the given plot. The positions of all the locations are given here in UTM coordiantes (WGS 84, UTM Zone 27N). From 2017 the hand hardness of each layer in the snow pit is also recorded, with the five different categories: fist, 4f (four fingers), 1f (one finger), p (pencil), and k (knife). Snow properties:Snow properties GeoBasis Zackenberg: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: 10.17897/1EHD-DV51 - https://doi.org/10.17897/1EHD-DV51
  • Location/site: Zackenberg_valley - -20.57, 74.47 (lon-lat wgs84)
  • Date span of the dataset: 2000-06-04 - 2019-04-24

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=10.17897/1EHD-DV51

Variables measured / columns in dataset

ID Name Unit Data Type Description
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Date Date YYYY-MM-DD Date
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Time Time HH:MM Time
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Location Location - Text Name of location, where densities are taken near existing plots
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Altitude_m_a_s_l Altitude_m_a_s_l M Number Altitude above sea level, given in meters
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Northing_mN Northing_mN M Number Positions are given in UTM coordinates (WGS 84, UTM Zone 27N)
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Easting_mE Easting_mE M Number Positions are given in UTM coordinates (WGS 84, UTM Zone 27N)
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Sampling_method Sampling_method - Text Equipment used to take sample
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Total_snow_depth_cm Total_snow_depth_cm Cm Number Snow depth measured manually in cm
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Length_of_snow_core_cm Length_of_snow_core_cm Cm Number Length of the snow core measured manually in cm
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Height_above_ground_top_cm Height_above_ground_top_cm Cm Number Vertical position of the equipment used for sampling in the snow pit, top
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Height_above_ground_bottom_cm Height_above_ground_bottom_cm Cm Number Vertical position of the equipment used for sampling in the snow pit, bottom
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Density_g_cm-3 Density_g_cm-3 g cm-3 Number Computed density of the snow sampled in grams per cubic centimeter
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Height_above_ground_for_temperature_measurement_cm Height_above_ground_for_temperature_measurement_cm Cm Number Vertical height above ground, in which the temperature of the snow pack is measured
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Snow_temperature_%c2%b0C Snow_temperature_°C °C Number Temperature of the snow pack
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Hand_hardness Hand_hardness - Text Measure of the hardness of the snow
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Remarks Remarks - Text General remarks about the condition of the snowpack, any comments about the sampling, etc.
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Altitude_m+a.s.l. Altitude_m a.s.l. M Number Altitude above sea level, given in meters
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Density_g%2fcm3_rep1 Density_g/cm3_rep1 g cm-3 Number Computed density of the snow sampled in grams per cubic centimeter, replicate 1
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Density_g%2fcm3_rep2 Density_g/cm3_rep2 g cm-3 Number Computed density of the snow sampled in grams per cubic centimeter, replicate 2, if it exists
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Density_g%2fcm3_rep3 Density_g/cm3_rep3 g cm-3 Number Computed density of the snow sampled in grams per cubic centimeter, replicate 3, if it exists
http://data.g-e-m.dk/datasets?doi=10.17897/1EHD-DV51&column=Hand+Hardness Hand Hardness - Text Measure of the hardness of the snow