Wilhelms, Frank; Stoll, Nicolas; Jansen, Daniela; Freitag, Johannes; Heiser, Yannick; Wahl, Sonja; Painer, Florian; Hvidberg, Niels; Lauritzen, Mikkel; Nymand, Niels; Westhoff, Julien; Svensson, Anders M; Vinther, Bo Møllesøe; Kipfstuhl, Sepp; Dahl-Jensen, Dorthe; Weikusat, Ilka: Conductivity and permittivity measured with the dielectric profiling (DEP) technique on the EGRIP ice core, 2120.850-2656.995 m depth [dataset]. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.971616 (dataset in review)
Abstract:
Dielectric Profiling (DEP) of the East GReenland Ice core Project (EGRIP) core were recorded in the field during the 2022 and 2023 field seasons with the DEP device described by Wilhelms et al. (1998). The permittivity and conductivity of DEP data are calculated by their respective densities and conductivities (Wilhelms, 2005). The resolution of DEP data is 5 mm depth intervals. The DEP was not processed at a consistent temperature due to the varying temperature in the field seasons. For more information on the calibration procedure see Mojtabavi et al, 2020.
References:
Mojtabavi, Seyedhamidreza; Wilhelms, Frank; Cook, Eliza; Davies, Siwan M; Sinnl, Giulia; Skov Jensen, Mathias; Dahl-Jensen, Dorthe; Svensson, Anders M; Vinther, Bo Møllesøe; Kipfstuhl, Sepp; Karlsson, Nanna Bjørnholt; Faria, Sergio Henrique; Gkinis, Vasileios; Kjær, Helle Astrid; Erhardt, Tobias; Berben, Sarah M P; Nisancioglu, Kerim H; Koldtoft, Iben; Rasmussen, Sune Olander (2020): A first chronology for the East GReenland Ice-core Project (EGRIP) over the Holocene and last glacial termination. Climate of the Past, 16, 2359-2380, https://doi.org/10.5194/cp-16-2359-2020
Wilhelms, Frank (2005): Explaining the dielectric properties of firn as a density-and-conductivity mixed permittivity (DECOMP). Geophysical Research Letters, 32, L16501, https://doi.org/10.1029/2005GL022808
Wilhelms, Frank; Kipfstuhl, Sepp; Miller, Heinz; Heinloth, K; Firestone, J (1998): Precise dielectric profiling of ice cores: a new device with improved guarding and its theory. Journal of Glaciology, 44(146), 171-174, https://doi.org/10.3189/S002214300000246X
Coverage:
Latitude: 75.630000 * Longitude: -35.980000
Minimum DEPTH, ice/snow: 2120.850 m * Maximum DEPTH, ice/snow: 2656.995 m
Event(s):
Parameter(s):
| # | Name | Short Name | Unit | Principal Investigator | Method/Device | Comment |
|---|---|---|---|---|---|---|
| 1 | DEPTH, ice/snow | Depth ice/snow | m | Wilhelms, Frank | Geocode | |
| 2 | Permittivity, relative | Permittivity rel | Wilhelms, Frank | Dielectric profiling, DEP | ||
| 3 | Conductivity, specific | Cond | µS/m | Wilhelms, Frank | Dielectric profiling, DEP |
License:
Creative Commons Attribution 4.0 International (CC-BY-4.0) (License comes into effect after moratorium ends)
Status:
Curation Level: Enhanced curation (CurationLevelC)
Size:
176546 data points
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