DSM COMPLETE SYNTHETIC SEISMOGRAMS - SH, SPHERICALLY SYMMETRICAL, CASE

被引:23
作者
CUMMINS, PR [1 ]
GELLER, RJ [1 ]
HATORI, T [1 ]
TAKEUCHI, N [1 ]
机构
[1] UNIV TOKYO,FAC SCI,DEPT EARTH & PLANETARY PHYS,TOKYO 113,JAPAN
关键词
D O I
10.1029/GL021i007p00533
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
We present a new technique, based on the Direct Solution Method (DSM) [Geller et al., 1990; Hara et al., 1991; Geller and Ohminato, 1994], for calculating SH (toroidal) synthetic seismograms for spherically symmetric, isotropic, media. No asymptotic approximations are used and the synthetics, which fully include both body and surface waves, can be computed for a broad range of frequencies. Our algorithm accurately handles sources that require discontinuities in the vertically dependent part of the displacement. We use matrix operators that minimize the numerical error of the solutions. An example synthetic profile is presented for a 600km deep source in the IASP91 model for the period range 4-5000s.
引用
收藏
页码:533 / 536
页数:4
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