NDLI: Frequency domain wave equation forward modeling using gaussian elimination with static pivoting

Content Provider	Springer Nature Link
Author	Jian Yong, Song Xiao Dong, Zheng Yan, Zhang Ji Xiang, Xu Zhen, Qin Xue Juan, Song
Copyright Year	2011
Abstract	Frequency domain wave equation forward modeling is a problem of solving large scale linear sparse systems which is often subject to the limits of computational efficiency and memory storage. Conventional Gaussian elimination cannot resolve the parallel computation of huge data. Therefore, we use the Gaussian elimination with static pivoting (GESP) method for sparse matrix decomposition and multi-source finite-difference modeling. The GESP method does not only improve the computational efficiency but also benefit the distributed parallel computation of matrix decomposition within a single frequency point. We test the proposed method using the classic Marmousi model. Both the single-frequency wave field and time domain seismic section show that the proposed method improves the simulation accuracy and computational efficiency and saves and makes full use of memory. This method can lay the basis for waveform inversion.
Starting Page	60
Ending Page	68
Page Count	9
File Format	PDF
ISSN	16727975
Journal	Applied Geophysics
Volume Number	8
Issue Number	1
e-ISSN	19930658
Language	English
Publisher	Chinese Geophysical Society
Publisher Date	2011-03-31
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Gaussian elimination with static pivoting frequency-domain wave equation forward modeling single-frequency distributed parallel Applied Earth Sciences Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Geophysics

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