Keywords
plane electromagnetic field
gradient media
Section
Abstract
The solution of forward problems of magnetotelluric sounding for a case of one-dimensional piecewise gradient environments is received. Two problems are considered: the problem of calculating the impedance on the Earth’s surface for a gradient model of the upper half-space (Earth's atmosphere) and the problem of determining the magnetotelluric impedance for layered, piecewise-gradient models of the geological medium, which allow mathematical modeling of the magnetotelluric response functions and study the interaction of electromagnetic field and gradient models of lithosphere media. Such models extend the possibilities of development of the theory and practice of magnetotelluric research, first of all, when solving inverse problems, which is associated with the advantage of analytical solutions over numerical solutions of inverse problems of geophysics in terms of sharp reduction of their dimensionality. The main focus of the work is on the study of geodynamic processes in passive electromagnetic monitoring, the foundations of which are laid in the article (Alexandrov, Rybin, Zabinyakova, 2018).
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