Wave transforms of transient electromagnetic field in conductive earth

G. A. Gretskov; M. I. Epov; E. Yu Antonov

doi:10.1016/j.rgg.2016.09.031

Wave transforms of transient electromagnetic field in conductive earth

G. A. Gretskov, M. I. Epov, E. Yu Antonov

Geophysics Section

Research output: Contribution to journal › Article › peer-review

Abstract

The study aims at finding a stable method for transformation of time-domain electromagnetic diffusion field to an electromagnetic wavefield. Two ways of transformation are considered: singular-value decomposition (SVD) and Tikhonov's regularizations. Transformation is applied to TEM responses of a conductive half-space, a conductive S film, and to a series of horizontally layered models. The wave transforms are used to plot travel-time curves and to estimate the velocity of EM field propagation.

Original language	English
Pages (from-to)	744-751
Number of pages	8
Journal	Russian Geology and Geophysics
Volume	58
Issue number	6
DOIs	https://doi.org/10.1016/j.rgg.2016.09.031
Publication status	Published - 1 Jun 2017

Keywords

regularization
TEM soundings
wave transform

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10.1016/j.rgg.2016.09.031

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