Data related to Low-frequency Polarization of Blank Ice Features in Solid Rocks

In the paper mentioned above the data are presented in Figure 1. 02 - Time-lapse In the folder "02_time_lapse.zip" we present spectral induced polarization time-lapse data collected in the sample SB01 during the formation of ice in the hole drilled in the rock sample. The data were collected along two different quadrupoles (Q1 and Q2). The files are labelled as follows: sample_monitoring_quadrupole_id.csv.

The id is associated with the frequency as follows: 1.00 Hz 3.98 Hz 15.85 Hz 63.10 Hz 251.19 Hz The files contain 6 columns: TimeStamp(s): Time of the measurement relative to time of water injection App.Conductivity_real(μS/cm): Apparent conductivity real part in µS/cm App.Conductivity_imaginary(μS/cm): Apparent conductivity imaginary part in µS/cm App.Conductivity_phase(mrad): Apparent conductivity phase in mrad Impedance_magnitude(Ohm): Impedance magnitude in Ohm Impedance_phase(rad): Impedance phase in rad Additionally, the geometric factors for all quadrupoles are given in the subfolder "geometric_factors".

In the paper mentioned above the data are presented in Figure 2. 03 - Imaging In the folder "03_imaging.zip" we present spectral induced polarization imaging data collected in the sample SB01 with an ice-filled hole. The data were collected along 138 quadrupoles, are given in the .ohm format and are split up by the frequency. The files are labelled as follows: sample_frequency.ohm.

The frequency is given in mHz. The file is structured as follows: < Number of electrodes > #x y z … < Number of quadrupoles > #a b m n r ip … The column names stand for the following parameters: x, y, z ... Coordinates of the electrodes in m a, b, m, n ...

Electrode numbers used for current injection (a and b) and potential measurements (m and n) r ... impedance magnitude (Ohm) ip ... impedance phase (mrad) *-1 Additionally, the mesh, which has been used for the inversion of the data, is given in the subfolder "mesh". In the paper mentioned above the data are presented in Figure 3.