Three dimensional magnetotelluric modeling. Final: volume 77-15

Technical Report · Sat Jul 01 00:00:00 EDT 1978

DOI:https://doi.org/10.2172/5628172· OSTI ID:5628172

Hohmann, G W; Ting, S C

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). Earth Science Lab.
• OSTI ID: 5628172
• Report Number(s): IDO-77.3.1
• Country of Publication: United States
• Language: English

Related Subjects

15 GEOTHERMAL ENERGY
150301* -- Geothermal Exploration & Exploration Technology-- Geophysical Techniques & Surveys
COMPUTER CALCULATIONS
ELECTRICAL SURVEYS
ELECTROMAGNETIC SURVEYS
EQUATIONS
GEOPHYSICAL SURVEYS
Geothermal Legacy
INTEGRAL EQUATIONS
MAGNETOTELLURIC SURVEYS
MATHEMATICAL MODELS
THREE-DIMENSIONAL CALCULATIONS