Specific conductivity measured with the dielectric profiling (DEP) technique on the NEEM ice core (1493.30- 1757.310 m depth)@en

Dielectric Profiling (DEP) of the North Greenland Eemian (NEEM) core were recorded in the field during the 2008-2011field 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. The upper 100 m is measured on NEEM–2008–S1 core, which was the NEEM pilot core. For more information on the calibration procedure see Mojtabavi et al, 2020.北格陵兰埃姆间冰期（North Greenland Eemian, NEEM）冰芯的介电剖面分析（Dielectric Profiling, DEP）数据采集于2008至2011年的野外考察季，所用设备为Wilhelms等人（1998）描述的DEP装置。DEP数据的介电常数与电导率通过对应的密度及电导率（Wilhelms, 2005）计算得到。该数据集的深度分辨率为5毫米。因野外考察季的环境温度存在波动，DEP数据未在恒温条件下进行处理。冰芯顶部100米的测量数据取自NEEM–2008–S1试点冰芯，该冰芯为NEEM项目的先期试钻冰芯。有关校准流程的详细信息，请参阅Mojtabavi等人（2020）的研究。