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Fig. 6. Soil model Type 2 cumulative sensitivity using the higher electrical conductivities sometimes detected in environmental investigations. Comparison of results of forward numerical model simulation results with the low-induction-number (LIN) approximation: (A) horizontal (HCP) and (B) vertical (VCP) coplanar coil orientation. Relative depth is the depth divided by the intercoil separation. The first number in brackets is the upper layer electrical conductivity, the second number is the lower layer electrical conductivity, both in mS m–1.
