Regularized Inversion for Three-dimensional Magnetotelluric Data
The magnetotelluric inverse problem is ill-posed,and therefore unstable and non-unique.This means that different geo-electrical models could fit the observed data with the same accuracy.A stable solution of an ill-posed inverse problem can be obtained by utilizing the regularization methods in the objective functional subjected to minimum.On the other hand,three-dimensional magnetotelluric inversion required powerful higher-end workstations or supercomputers.Thus,we have formulated a three-dimensional inverse solution for the magnetotelluric problem using regularized technique and approximate sensitivities method.The synthetic examples show that three-dimensional regularized inversion method are feasible and give reasonably accurate results for simple three-dimensional models.
magnetotelluric three-dimensional regularized inversion smoothness-constrained
Tong Xiaozhong Liu Jianxin Guo Rongwen Zhang Lianwei
School of Geosciences and Info-physics, Central South University, Changsha 410083, China;Key Laborat School of Geosciences and Info-physics, Central South University, Changsha 410083, China The Third Survey and Design Institute of China Railway, Tianjin 300251, China
国际会议
长沙
英文
103-109
2012-06-15（万方平台首次上网日期，不代表论文的发表时间）