МРНТИ 39.01.77, 37.01.77                                                                     №2 (2020г.)

Mirgalikyzy T., Mukanova B.G., Turarova M.K., Modin I.N.

The aim of this work is to develop an alternative method for eliminating distortion by the ground surface relief when interpreting electrical resistivity
tomography data. One of the important issues is the influence of the ground surface relief on the results of the inversion of electrical resistivity tomography data, which gives false anomalies. This work presents the developed method for eliminating data distortion by the ground surface relief, the test results and acceptable parameters of the applicability of this method for a two-layer model of media with a ground surface relief. The curves of the apparent resistivity of the medium are simulated using the numerical implementation of the method of integral equations, which is efficient in using computing resources and accurate in taking into account the shape of the relief. Application of the proposed method helps to eliminate anomalies from the topography of the surface of more complex geological media for further interpretation of data in 2D inversion programs.
Keywords: interpretation, ground surface relief, integral equation method, apparent resistivity, electrical resistivity tomography.