THE TWO-DIMENSIONAL CSAMT MODELING WITH TOPOGRAPHY
ZHANG Bin1, TAN Han-dong2
1. China Non-ferrous Metals Resources Geological Survey, Beijing 100012, China; 2. School of Geophysics and Information Technology, China University of Geosciences, Beijing 100083, China
Abstract:In this paper, secondary field algorithm was used to study CSAMT two-dimensional forward problem. Forward modeling used finite-element method, and it employs compressed storage and conjugate gradient technique to accelerate the speed of forward algorithm. In addition, topography was added to the forward algorithm. Finally, the algorithm was tested by means of a synthetic model. The test shows promising results.
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