NDLI: The implementation of an improved NPML absorbing boundary condition in elastic wave modeling

Content Provider	Springer Nature Link
Author	Qin, Zhen Lu, Minghui Zheng, Xiaodong Yao, Yao Zhang, Cai Song, Jianyong
Copyright Year	2009
Abstract	In elastic wave forward modeling, absorbing boundary conditions (ABC) are used to mitigate undesired reflections from the model truncation boundaries. The perfectly matched layer (PML) has proved to be the best available ABC. However, the traditional splitting PML (SPML) ABC has some serious disadvantages: for example, global SPML ABCs require much more computing memory, although the implementation is easy. The implementation of local SPML ABCs also has some difficulties, since edges and corners must be considered. The traditional non-splitting perfectly matched layer (NPML) ABC has complex computation because of the convolution. In this paper, based on non-splitting perfectly matched layer (NPML) ABCs combined with the complex frequency-shifted stretching function (CFS), we introduce a novel numerical implementation method for PML absorbing boundary conditions with simple calculation equations, small memory requirement, and easy programming.
Starting Page	113
Ending Page	121
Page Count	9
File Format	PDF
ISSN	16727975
Journal	Applied Geophysics
Volume Number	6
Issue Number	2
e-ISSN	19930658
Language	English
Publisher	Chinese Geophysical Society
Publisher Date	2009-06-26
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	PML absorbing boundary condition non-splitting forward modeling Applied Earth Sciences Geophysics/Geodesy
Content Type	Text
Resource Type	Article
Subject	Geophysics

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