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U.S. Department of Energy
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Three dimensional magnetotelluric modeling

Technical Report ·
DOI:https://doi.org/10.2172/6563090· OSTI ID:6563090
A three-dimensional (3D) volume integral equation solution was refined and adapted to magnetotelluric (MT) modeling. The refinement, incorporating an integro-difference scheme, increases the accuracy somewhat without increasing the computer time. Utilizing the two symmetry planes for a plane wave source decreases the computer storage by a factor of 8 and greatly reduces the computer time. Convergence checks and comparisons with other solutions show that our results are valid. Because of space charges at resistivity boundaries, low-frequency 3D responses are much different from 1D and 2D responses. Hence 3D models are required for interpreting MT data in the complex geothermal environment.
Research Organization:
Utah Univ., Salt Lake City (USA). Research Inst.
OSTI ID:
6563090
Report Number(s):
IDO-1601-4
Country of Publication:
United States
Language:
English