Figure 5

Color maps of the Pearson correlation coefficients between time series recorded at different depths, in meters, within the four representative boreholes (a–d). Note that the color scale is different for N05 (b).

Color maps of the Pearson correlation coefficients between time series recorded at different depths, in meters, within the four representative boreholes (a–d). Note that the color scale is different for N05 (b).