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Book Chapter

Modeling the Magnetotelluric Field

January 01, 2001


In recent decades, the magnetotelluric (MT) method has been applied widely to geotectonics, oil and gas surveys, geothermal investigations, and earthquake prediction. Forward modeling for the 1-D MT problem is analytical. However, for the 2-D case one must use numerical methods. Presently, the most commonly used numerical method is the FEM (Silvester and Haslam, 1972; Reddy and Rakin, 1975; Xu and Zhao, 1985; Wannamaker et al., 1986, 1987; and Chouteau and Bouchard, 1988).

This chapter presents the application of the BEM to 2-D MT forward modeling. The BEM is most useful if there exists a single in-homogeneous body underground (Xu and Zhao, 1987) and, more importantly, for the study of 2-D and 3-D terrain effects on the MT field (Xu and Zhou, 1997; Xu et al., 1997). When the geological structure is complex, the FEM is obviously superior to the BEM

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Society of Exploration Geophysicists Geophysical Monograph Series

The Boundary Element Method in Geophysics

Shi-zhe Xu
Shi-zhe Xu
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January 01, 2001




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