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3-D Magnetotelluric Inversion and Application Using the Edge-Based Finite Element With Hexahedral Mesh

文献类型：期刊论文

作者Xie, Jingtao1; Cai, Hongzhu1; Hu, Xiangyun1; Long, Zhidan1; Xu, Shan1; Fu, Changmin2; Wang, Zhongxing2; Di, Qingyun2
刊名IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING
出版日期2021-05-23
页码11
关键词Mathematical model Computational modeling Conductivity Solid modeling Convergence Data models Memory management 3-D inversion finite element (FE) Luntai area magnetotelluric (MT)
ISSN号0196-2892
DOI10.1109/TGRS.2021.3079420
英文摘要Three-dimensional (3-D) inversion technique has become an important and practical approach for magnetotelluric (MT) data interpretation. In this article, we developed a 3-D parallelized MT inversion scheme using the edge-based finite element method and applied the developed method to the newly collected MT data in the Xinjiang Luntai area. The distorted hexahedral element is adopted to incorporate topography into the forward modeling and inversion for complicated scenarios. We use the Gauss-Newton optimization method to minimize the objective functional for MT inversion. The developed algorithm is parallelized using MPI over frequencies and parallel direct solvers when solving the forward and adjoint problems for each frequency. We compare the performance of the least-square QR (LSQR) factorization and preconditioned conjugate gradient (PCG) solvers for the model update within each Gauss-Newton iteration and found that the LSQR solver is more stable. The developed inversion algorithm is validated using several synthetic models. Finally, we applied the inversion algorithm to the subsurface resistivity imaging in the Luntai area. The recovered geoelectric model from full 3-D inversion fits well with the known geological and geophysical information. The recovered model shows a low resistivity layer which may be caused by the salt strata. Besides, the inversion results reveal the movement tectonic in this survey area within a depth of 9 km.
WOS关键词ELECTROMAGNETIC DATA ; SOLUTION STRATEGIES ; SYSTEM BENEATH ; TABEI UPLIFT ; TARIM BASIN ; CSEM DATA ; FREQUENCY ; ACCUMULATION ; ORIGIN ; CHINA
资助项目National Natural Science Foundation of China[41974089] ; National Natural Science Foundation of China[41874088] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14050100]
WOS研究方向Geochemistry & Geophysics ; Engineering ; Remote Sensing ; Imaging Science & Photographic Technology
语种英语
WOS记录号WOS:000732764100001
出版者IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
资助机构National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences ; Strategic Priority Research Program of the Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/103918]  
专题地质与地球物理研究所_深部资源勘探装备研发
通讯作者Cai, Hongzhu; Di, Qingyun
作者单位1.China Univ Geosci, Inst Geophys & Geomat, Wuhan 430074, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Xie, Jingtao,Cai, Hongzhu,Hu, Xiangyun,et al. 3-D Magnetotelluric Inversion and Application Using the Edge-Based Finite Element With Hexahedral Mesh[J]. IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,2021:11.
APA Xie, Jingtao.,Cai, Hongzhu.,Hu, Xiangyun.,Long, Zhidan.,Xu, Shan.,...&Di, Qingyun.(2021).3-D Magnetotelluric Inversion and Application Using the Edge-Based Finite Element With Hexahedral Mesh.IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING,11.
MLA Xie, Jingtao,et al."3-D Magnetotelluric Inversion and Application Using the Edge-Based Finite Element With Hexahedral Mesh".IEEE TRANSACTIONS ON GEOSCIENCE AND REMOTE SENSING (2021):11.

入库方式： OAI收割

来源：地质与地球物理研究所

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