Permittivity measured with the dielectric profiling (DEP) technique on the EGRIP ice core, 1383.84-2122.445 m depth

Dielectric Profiling (DEP) of the East GReenland Ice core Project (EGRIP) core were recorded in the field during the 2017, 2018 and 2019 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.

东格陵兰冰芯计划（East Greenland Ice core Project，EGRIP）冰芯的介电剖面法（Dielectric Profiling，DEP）数据，于2017、2018及2019年野外季，采用Wilhelms等人（1998年）所描述的DEP设备在野外现场采集获取。该DEP数据的介电常数与电导率，依据对应样品的密度与电导率计算得到（Wilhelms, 2005）。DEP数据的深度分辨率为5毫米间隔。由于各野外季的野外温度存在波动，本次DEP测量未在恒定温度条件下进行。有关校准流程的更多细节，请参阅Mojtabavi等人2020年的研究成果。