2.5-D modelling of elastic waves using the pseudospectral method

被引:50
作者
Furumura, T
Takenaka, H
机构
[1] KYUSHU UNIV,DEPT EARTH & PLANETARY SCI,FUKUOKA 81281,JAPAN
[2] HOKKAIDO UNIV,FAC EDUC,IWAMIZAWA,HOKKAIDO 068,JAPAN
关键词
explosion seismology; Hidaka Mountains; synthetic seismograms;
D O I
10.1111/j.1365-246X.1996.tb05640.x
中图分类号
P3 [地球物理学]; P59 [地球化学];
学科分类号
0708 ; 070902 ;
摘要
The pseudospectral method is a high-accuracy numerical modelling technique which requires less memory and CPU time than traditional numerical modelling techniques, such as finite difference. However, full 3-D modelling is still computationally intensive. As we must compromise between realism and computational efficiency, we have developed a 2.5-D pseudospectral scheme for calculating 3-D elastic wavefields in media varying in two dimensions. To demonstrate the feasibility of the scheme described in this paper, we use data from a refraction survey carried out in 1984 by the Explosion Seismology Group in the southeastern foothills of the Hidaka Mountains, Hokkaido, Japan.
引用
收藏
页码:820 / 832
页数:13
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