Three-dimensional finite difference method for the magnetotelluric secondary field with coupled PML boundary conditions | |
Xue Shuai1,2; Bai Deng-Hai1; Tang Jing1,2; Ma Xiao-Bing1 | |
刊名 | CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION |
2017 | |
卷号 | 60期号:1页码:337-348 |
关键词 | Magnetotelluric Secondary Field Staggered-grid Difference Method Absorbing Boundary Conditions |
ISSN号 | 0001-5733 |
DOI | 10.6038/cjg20170128 |
文献子类 | Article |
英文摘要 | A new staggered-grid finite difference algorithm has been developed for computing the magnetotelluric responses of three-dimensional (3D) models using the secondary field method. The use of the secondary field allows us to apply the anisotropic Perfectly Matched Layer (PML) absorbing boundary conditions based on absorbing factors. To ensure the stability and efficiency, the quasi-minimum residual (QMR) method and divergence correction of magnetic induction vector are used to solve the linear system of equations. Two different 3D models are simulated to validate the effectiveness of this algorithm. The modelling responses are in a good agreement with the solutions from other methods. The comparison of different absorbing factors shows that the PML absorbing boundary conditions can reduce the outer boundaries and improve the efficiency of magnetotelluric forward modeling. |
WOS关键词 | PERFECTLY MATCHED LAYER ; QINGHAI-TIBET PLATEAU ; DIVERGENCE CORRECTION ; ELEMENT-METHOD ; EQUATIONS ; INVERSION ; PROFILE ; CRUST |
WOS研究方向 | Geochemistry & Geophysics |
语种 | 英语 |
出版者 | SCIENCE PRESS |
WOS记录号 | WOS:000392040800028 |
内容类型 | 期刊论文 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/53158] |
专题 | 地质与地球物理研究所_岩石圈演化国家重点实验室 |
通讯作者 | Xue Shuai |
作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Grad Univ, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Xue Shuai,Bai Deng-Hai,Tang Jing,et al. Three-dimensional finite difference method for the magnetotelluric secondary field with coupled PML boundary conditions[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2017,60(1):337-348. |
APA | Xue Shuai,Bai Deng-Hai,Tang Jing,&Ma Xiao-Bing.(2017).Three-dimensional finite difference method for the magnetotelluric secondary field with coupled PML boundary conditions.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,60(1),337-348. |
MLA | Xue Shuai,et al."Three-dimensional finite difference method for the magnetotelluric secondary field with coupled PML boundary conditions".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 60.1(2017):337-348. |
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