Three-dimensional Modeling of Frequency Sounding in Layered Anisotropic Earth Using Integral Equation Method

CHINESE JOURNAL OF COMPUTATIONAL PHYSICS ›› 2010, Vol. 27 ›› Issue (2): 274-280.

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Three-dimensional Modeling of Frequency Sounding in Layered Anisotropic Earth Using Integral Equation Method

CHEN Guibo¹, WANG Hongnian¹, YAO Jingjin², HAN Ziye²

1. Center of Theoretical Physics, School of Physics, Jilin University, Changchun 130021, China;
2. Institute of Geophysical and Geochemical Exploration, Geological Academe of China, Langfang 065000, China

Received:2008-09-17 Revised:2009-02-17 Online:2010-03-25 Published:2010-03-25

Abstract

Abstract: We carry out three-dimensional(3-D) modeling of frequency electromagnetic sounding in layered anisotropic earth using integral equation method. A integral equation formulation is derived based on modified Green's operator with norm less or equal to one. The integral equation is convergent for any conductivity distribution and frequency if iterative solvers are used. An optimal choice method on initial guess for iterative solvers is introduced. It improves computational efficiency of 3-D modeling of frequency electromagnetic sounding significantly. Apparent resistivity responses of 3-D axial frequency electromagnetic sounding are considered in multilayered anisotropic earth.

Key words: 3-D electromagnetic modeling, anisotropy, integral equation method, frequency sounding

CLC Number:

P631

CHEN Guibo, WANG Hongnian, YAO Jingjin, HAN Ziye. Three-dimensional Modeling of Frequency Sounding in Layered Anisotropic Earth Using Integral Equation Method[J]. CHINESE JOURNAL OF COMPUTATIONAL PHYSICS, 2010, 27(2): 274-280.

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Three-dimensional Modeling of Frequency Sounding in Layered Anisotropic Earth Using Integral Equation Method

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