SHALLOW ELECTROMAGNETIC SOUNDING: NUMERICAL ANALYSIS OF RESPONSES FOR GEOECOLOGICAL AND ENGINEERING-GEOPHYSICAL APPLICATIONS
V.N. Glinskikh and M.I. Epov
Institute of Geophysics, Siberian Branch of the RAS, 3 prosp. Akad. Koptyuga, Novosibirsk, 630090, Russia
Keywords: Forward problem, approximate approaches, phase difference, relative amplitude, shallow EM sounding
Pages: 759-768
Abstract
New approximate solutions to forward 3D shallow EM problem and software for fast processing of electromagnetic responses are applicable to detection of geoelectric targets (underground pipelines, engineering structures, zones of flooding and petroleum leakage, near-surface cavities, etc.) by recording the high-frequency components of the magnetic field. The new algorithms were tested in complex 3D numerical models of real geoecological and engineering settings and showed practically suitable accuracy and high performance.
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