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3-D dc resistivity modelling based on spectral element method with unstructured tetrahedral grids

文献类型：期刊论文

作者Zhu, Jiao1; Yin, Changchun1; Liu, Youshan5; Liu, Yunhe1; Liu, Ling4; Yang, Zhilong3; Qiu, Changkai2
刊名GEOPHYSICAL JOURNAL INTERNATIONAL
出版日期2020-03-01
卷号220期号:3页码:1748-1761
关键词Electrical properties Electromagnetic theory Numerical approximations and analysis Numerical modelling
ISSN号0956-540X
DOI10.1093/gji/ggz534
英文摘要In this paper, we propose a spectral element method (SEM) based on unstructured tetrahedral grids for direct current (dc) resistivity modelling. Unlike the tensor-product of 1-D Gauss- Lobatto-Legendre (GLL) quadrature in conventional SEM, we use Proriol-Kooniwinder- Dubiner (PKD) polynomials to form the high-order basis polynomials on tetrahedral grids. The final basis functions are established by using Vandermonde matrix. Compared to traditional SEM, our method truly takes into account the high precision of spectral method and the flexibility of finite element method with unstructured grids for modelling the complex underground structures. After addressing the theory on the construction of basis functions and interpolation and integration nodes, we validate our algorithm using the analytical solutions for a layered earth model and the results from other methods for multiple geoclectrical models. We further investigate a dual-track scheme for improving the accuracy of our SEM by increasing the order of interpolation polynomials or by refining the grids.
WOS关键词DATA INCORPORATING TOPOGRAPHY ; FINITE-ELEMENTS ; WAVE-PROPAGATION ; INVERSION ; TRIANGLES ; ALGORITHM ; POINTS ; FLOW
资助项目National Natural Science Foundation of China[41774125] ; National Natural Science Foundation of China[41530320] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA14020102] ; Key National Research Project of China[2017YFC0601900] ; Key National Research Project of China[2016YFC0303100] ; S&T Program of Beijing[Z181100005718001]
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000525944600021
出版者OXFORD UNIV PRESS
资助机构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 ; Key National Research Project of China ; Key National Research Project of China ; S&T Program of Beijing ; S&T Program of Beijing ; 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 ; Key National Research Project of China ; Key National Research Project of China ; S&T Program of Beijing ; S&T Program of Beijing ; 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 ; Key National Research Project of China ; Key National Research Project of China ; S&T Program of Beijing ; S&T Program of Beijing ; 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 ; Key National Research Project of China ; Key National Research Project of China ; S&T Program of Beijing ; S&T Program of Beijing
源URL[http://ir.iggcas.ac.cn/handle/132A11/95549]  
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Yin, Changchun
作者单位1.Jilin Univ, Coll Geoexplorat Sci & Technol, Changchun, Peoples R China
2.China Geol Survey, Dev & Res Ctr, Beijing, Peoples R China
3.Fudan Univ, Key Lab Informat Sci Electromagnet Waves MoE, Shanghai, Peoples R China
4.Chengdu Branch Ctr, CAEP Software Ctr High Performance Numer Simulat, Chengdu, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, State Key Lab Lithospher Evolut, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Zhu, Jiao,Yin, Changchun,Liu, Youshan,et al. 3-D dc resistivity modelling based on spectral element method with unstructured tetrahedral grids[J]. GEOPHYSICAL JOURNAL INTERNATIONAL,2020,220(3):1748-1761.
APA Zhu, Jiao.,Yin, Changchun.,Liu, Youshan.,Liu, Yunhe.,Liu, Ling.,...&Qiu, Changkai.(2020).3-D dc resistivity modelling based on spectral element method with unstructured tetrahedral grids.GEOPHYSICAL JOURNAL INTERNATIONAL,220(3),1748-1761.
MLA Zhu, Jiao,et al."3-D dc resistivity modelling based on spectral element method with unstructured tetrahedral grids".GEOPHYSICAL JOURNAL INTERNATIONAL 220.3(2020):1748-1761.

入库方式： OAI收割

来源：地质与地球物理研究所

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