中国有色金属学报(英文版)
Transactions of Nonferrous Metals Society of China
| Vol. 24 No. 2 February 2014 |
（1. School of Geosciences and Info-physics, Central South University, Changsha 410083, China;
2. Key Laboratory of Nonferrous Resource and Geological Hazard Detection of Hunan Province,
Central South University, Changsha 410083, China）
Abstract:How to get the rapid and stable inversion results and reconstruct the clear subsurface resistivity structures is a focus problem in current magnetotelluric inversion. A stable solution of an ill-posed inverse problem was obtained by the regularization methods in which some desired structures were imposed to stabilize the inverse problem. By the smoothness-constrained model and approximate sensitivity method, the stable subsurface resistivity structures were reconstructed. The synthetic examples show that the smoothness-constrained regularized inversion method is effective and can be reasonable to reconstruct three-dimensional subsurface resistivity structures.
Key words: magnetotelluric; regularized inversion; approximate sensitivity; smoothness-constrained model
