Finite element analysis of controlled‐source electromagnetic induction for near‐surface geophysical prospecting
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© 2002 Society of Exploration Geophysicists. A three-dimensional finite element solution to the coupled-potential (A; ψ) formulation of Maxwell's di®u-sive equations has been developed for controlled-source electromagnetic prospecting in the near-surface region. The solution is formulated in terms of the secondary (As;ψs) potentials, and is calculated over a simple rectangular tetrahedral mesh. Electric and magnetic fields are recovered with a simple finite di®erence. The results have been tested against known analytic solutions with very promising results, and is currently being tested against other available solutions for more complex conductivity distributions.
author list (cited authors)
Stalnaker, J. L., & Everett, M. E.