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| | Abstract | | In this research, we show the effects of static distortion by heterogeneous surface in 3-D MT inversion results, and propose an improved 3-D MT inversion method that can remove the effects of static distortion. We use WSINV3DMT (Siripunvaraporn et al., 2005) to estimate synthetic MT response and obtain inversion results. First we confirmed 3-D MT forward calculation can express static distortion on MT response. Second we applied WSINV3DMT to synthetic some MT responses that are basically same, but some are distorted and the others are not. As a result we conformed distinct difference between 3-D MT inversion results. We also applied improved 3-D MT inversion code, which based on WSINV3DMT. As a result we got reasonable inversion result. Based on our results, we think this improved inversion method can reveal more reasonable resistivity structure of the underground. |
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