Rasmussen, Sune Olander; Vinther, Bo Møllesøe; Freitag, Johannes; Kipfstuhl, Sepp (2023): A standardized EGRIP density profile, true depth and ice-equivalent depth [dataset]. PANGAEA, https://doi.org/10.1594/PANGAEA.962758, In: Rasmussen, SO et al. (2023): EastGRIP snow-pack and ice-core densities (measured and modelled) [dataset bundled publication]. PANGAEA, https://doi.org/10.1594/PANGAEA.962754
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Abstract:
We here report measured densities from a combination of records from the EastGRIP ice-core site. The data come from a trench and two ice cores: the shallow EGRIP-S6 core and the deep main core of the project. Based on these data, we parametrize the density as a function of depth, allowing us to provide a standard transfer function between true depth and ice-equivalent depth which is consistent with the EGRIP density measurements. EGRIP density data are only available to 117 m depth, at which depth the density is about 900 kg/m^3 and the difference between true depth and ice-equivalent depth is about 22 m. The density and overburden profiles have been extended below this depth and all the way to 1200 m in order to provide a convenient, continuous and (mostly) smooth transfer function between true depth and ice-equivalent depth. See PDF file provided under 'Documentation' for full description of data and parametrization.
Documentation:
Rasmussen, Sune Olander; Vinther, Bo Møllesøe; Freitag, Johannes; Kipfstuhl, Sepp (2023): A standardized EGRIP density profile and transfer function between true depth and ice-equivalent depth. Centre for Ice and Climate, Section for the Physics of Ice, Climate and Earth, Niels Bohr Institute, University, Notes_on_EGRIP_density_fitting.pdf
Project(s):
East Greenland Ice-core Project (EGRIP)
Coverage:
Latitude: 75.630000 * Longitude: -36.000000
Date/Time Start: 2016-06-01T00:00:00 * Date/Time End: 2018-06-27T00:00:00
Minimum DEPTH, ice/snow: 0.00 m * Maximum DEPTH, ice/snow: 1200.00 m
Event(s):
EGRIP_2016_snow_trench (EastGRIP 2016 snow trench) * Latitude: 75.630000 * Longitude: -36.000000 * Date/Time Start: 2016-06-01T00:00:00 * Date/Time End: 2016-08-31T00:00:00 * Elevation: 2704.0 m * Location: Greenland * Method/Device: Snow trench (SNOWTRE) * Comment: Snow sampling in tubes
Parameter(s):
# | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
---|---|---|---|---|---|---|
1 | DEPTH, ice/snow | Depth ice/snow | m | Rasmussen, Sune Olander | Geocode – true depth | |
2 | Depth ice equivalent | Depth i.e. | m | Rasmussen, Sune Olander | Calculated according to Rasmussen et al.(2023) | calculated |
3 | Density, ice | Density ice | kg/m3 | Rasmussen, Sune Olander | Calculated according to Rasmussen et al.(2023) | calculated |
Status:
Curation Level: Enhanced curation (CurationLevelC) * Processing Level: PANGAEA data processing level 3 (ProcLevel3)
Size:
48002 data points
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