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Modeling of frequency-domain elastic-wave equation with a general optimal scheme
Li, Aman1,2,3; Liu, Hong1,2,3; Yuan, Yuxin1,2,3; Hu, Ting1,2,3; Guo, Xuebao1,2,3,4
2018-12-01
Source PublicationJOURNAL OF APPLIED GEOPHYSICS
ISSN0926-9851
Volume159Pages:1-15
AbstractFrequency-domain numerical modeling is an important foundation of frequency-domain full waveform inversion.However, the conventional 9-point scheme for frequency-domain 2D elastic-wave equation requires lots of sampling grid points but with limited precision. In this paper, we develop a general optimal 9-point scheme for frequency-domain 2D elastic-wave equation to reduce sampling grid points and improve the accuracy.The numerical dispersion analysis shows that this scheme can effectively reduce the grid point of per wavelength. The new scheme can be applied to equal and unequal spatial sampling intervals, which is convenient for their applications in practice Accuracy analysis demonstrates that the results of the optimal nine-point scheme are in better agreement with the analytic solutions relative to the conventional 9-point scheme.We deduce the perfectly matched layer (PML) absorbing boundary condition to eliminate the artificial boundary influence.Two numerical examples are used to demonstrate the effectiveness of the general optimal scheme for frequency-domainelastic-wave equation. (C) 2018 Elsevier B.V. All rights reserved.
KeywordElastic wave Frequency-domain modeling Optimization
DOI10.1016/j.jappgeo.2018.07.014
Funding OrganizationMajor State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS KeywordFINITE-DIFFERENCE ; INVERSION ; SCALAR ; SPACE
Language英语
Funding ProjectMajor State Research Development Program of China[2016YFC0601101] ; National Natural Science Foundation of China[41630319]
Funding OrganizationMajor State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Major State Research Development Program of China ; Major State Research Development Program of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China
WOS Research AreaGeology ; Mining & Mineral Processing
WOS SubjectGeosciences, Multidisciplinary ; Mining & Mineral Processing
WOS IDWOS:000453644600001
PublisherELSEVIER SCIENCE BV
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/90298
Collection油气资源研究院重点实验室
Corresponding AuthorLi, Aman
Affiliation1.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Petr Resources Res, Beijing 100029, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing 100029, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Northeast Petr Univ, Sch Earth Sci, Daqing 163318, Peoples R China
Recommended Citation
GB/T 7714
Li, Aman,Liu, Hong,Yuan, Yuxin,et al. Modeling of frequency-domain elastic-wave equation with a general optimal scheme[J]. JOURNAL OF APPLIED GEOPHYSICS,2018,159:1-15.
APA Li, Aman,Liu, Hong,Yuan, Yuxin,Hu, Ting,&Guo, Xuebao.(2018).Modeling of frequency-domain elastic-wave equation with a general optimal scheme.JOURNAL OF APPLIED GEOPHYSICS,159,1-15.
MLA Li, Aman,et al."Modeling of frequency-domain elastic-wave equation with a general optimal scheme".JOURNAL OF APPLIED GEOPHYSICS 159(2018):1-15.
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