Wave equation dispersion inversion using a difference approximation to the dispersion-curve misfit gradient

doi:10.1016/j.jappgeo.2016.07.019

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 > 中国科学院页岩气与地质工程重点实验室

	Wave equation dispersion inversion using a difference approximation to the dispersion-curve misfit gradient
	Zhang, Zhen-dong 1; Schuster, Gerard 1; Liu, Yike 2; Hanafy, Sherif M.1; Li, Jing 1
刊名	JOURNAL OF APPLIED GEOPHYSICS
	2016-10-01
卷号	133 页码:9-15
关键词	Surface wave Dispersion curve Wave equation Inversion
DOI	10.1016/j.jappgeo.2016.07.019
文献子类	Article
英文摘要	We present a surface-wave inversion method that inverts for the S-wave velocity from the Rayleigh wave dispersion curve using a difference approximation to the gradient of the misfit function. We call this wave equation inversion of skeletonized surface waves because the skeletonized dispersion curve for the fundamental-mode Rayleigh wave is inverted using finite-difference solutions to the multi-dimensional elastic wave equation. The best match between the predicted and observed dispersion curves provides the optimal S-wave velocity model. Our method can invert for lateral velocity variations and also can mitigate the local minimum problem in full waveform inversion with a reasonable computation cost for simple models. Results with synthetic and field data illustrate the benefits and limitations of this method. (C) 2016 Elsevier B.V. All rights reserved.
WOS关键词	RAYLEIGH-WAVES
WOS研究方向	Geology ; Mining & Mineral Processing
语种	英语
WOS记录号	WOS:000383937300002
资助机构	KAUST ; KAUST ; CSIM ; CSIM ; National Nature Science Foundation of China(41430321) ; National Nature Science Foundation of China(41430321) ; KAUST ; KAUST ; CSIM ; CSIM ; National Nature Science Foundation of China(41430321) ; National Nature Science Foundation of China(41430321)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/53349]
专题	地质与地球物理研究所_中国科学院页岩气与地质工程重点实验室
作者单位	1.King Abdullah Univ Sci & Technol, Dept Phys Sci & Engn, Thuwal 239556900, Saudi Arabia 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Zhen-dong,Schuster, Gerard,Liu, Yike,et al. Wave equation dispersion inversion using a difference approximation to the dispersion-curve misfit gradient[J]. JOURNAL OF APPLIED GEOPHYSICS,2016,133:9-15.
APA	Zhang, Zhen-dong,Schuster, Gerard,Liu, Yike,Hanafy, Sherif M.,&Li, Jing.(2016).Wave equation dispersion inversion using a difference approximation to the dispersion-curve misfit gradient.JOURNAL OF APPLIED GEOPHYSICS,133,9-15.
MLA	Zhang, Zhen-dong,et al."Wave equation dispersion inversion using a difference approximation to the dispersion-curve misfit gradient".JOURNAL OF APPLIED GEOPHYSICS 133(2016):9-15.