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Rasmussen, Sune Olander; Abbott, Peter M; Blunier, Thomas; Bourne, Mark; Brook, Edward J; Buchardt, Susanne L; Buizert, Christo; Chappellaz, Jérôme A; Clausen, Henrik Brink; Cook, Eliza; Dahl-Jensen, Dorthe; Davies, Siwan M; Guillevic, Myriam; Kipfstuhl, Sepp; Laepple, Thomas; Seierstad, Inger K; Severinghaus, Jeffrey P; Steffensen, Jørgen Peder; Stowasser, Christopher; Svensson, Anders M; Vallelonga, Paul T; Vinther, Bo M; Wilhelms, Frank; Winstrup, Mai (2013): Specific conductivity measured with the dielectric profiling (DEP) technique on the NGRIP ice core. PANGAEA, https://doi.org/10.1594/PANGAEA.831523, In supplement to: Rasmussen, SO et al. (2013): A first chronology for the North Greenland Eemian Ice Drilling (NEEM) ice core. Climate of the Past, 9(6), 2713-2730, https://doi.org/10.5194/cp-9-2713-2013

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Source data set:
Wilhelms, Frank; Kipfstuhl, Sepp (2013): NGRIP ice core DEP data. World Data Center for Paleoclimatology, Boulder and NOAA Paleoclimatology Program, ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/summit/ngrip/ngrip2013dep.txt
Coverage:
Latitude: 75.100000 * Longitude: -42.320000
Date/Time Start: 1996-07-01T00:00:00 * Date/Time End: 1996-07-01T00:00:00
Minimum DEPTH, ice/snow: 1298.705 m * Maximum DEPTH, ice/snow: 2930.325 m
Event(s):
NGRIP * Latitude: 75.100000 * Longitude: -42.320000 * Date/Time: 1996-07-01T00:00:00 * Elevation: 2925.0 m * Campaign: NGRIP * Basis: Sampling/drilling ice * Device: Ice drill (ICEDRILL)
Comment:
The dielectrical stratigraphy of the NGRIP core was recorded in the field with the dielectric profiling (DEP) technique (Wilhelms et al., 1998). Ice core sections of 1.65 m were usually analysed no more than one day after drilling.
Due to missing measurements of the cable stray capacitance and conductance, the data has not been corrected for cable stray conductance, and the dataset still contains a periodic variation with amplitude of up to 2% of the baseline conductivity and a wavelength of 1.65 m.
The DEP data sets is provided in processed form without correction for the temperature variation in the science trench or in the core-buffer. Therefore, care should be taken when interpreting the absolute levels between sections.
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1DEPTH, ice/snowDepth ice/snowmGeocode
2Conductivity, specificCondµS/mWilhelms, FrankDielectric profiling, DEP (Wilhelms et al., 1998)not temperature corrected
Size:
243563 data points

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