Three-dimensional finite difference method for the magnetotelluric secondary field with coupled PML boundary conditions

doi:10.6038/cjg20170128

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 岩石圈演化国家重点实验室

	Three-dimensional finite difference method for the magnetotelluric secondary field with coupled PML boundary conditions
	Xue Shuai 1,2; Bai Deng-Hai 1; Tang Jing 1,2; Ma Xiao-Bing 1
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.