DSM complete synthetic seismograms : SH, spherically symmetric, case

DSM complete synthetic seismograms : SH, spherically symmetric, case
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DSM 完整合成地震图:SH,球对称,案例

DOI:
10.1029/gl021i007p00533
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发表时间:
1994
影响因子:
5.2
通讯作者:
N. Takeuchi
N. Takeuchi
中科院分区:
地球科学1区
文献类型:
--
作者:
P. Cummins;R. Geller;Tomohiko Hatori;N. Takeuchi

文献摘要

被引文献

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在之前的一篇论文中,[康明斯等人,1994,以下简称为DSMI],我们提出了理论和计算结果计算完整的SH(环形)合成地震记录的球对称,各向同性,媒体。我们现在将我们的处理扩展到波场的P-SV(球形)部分。不使用渐近近似,合成,其中包括体波和表面波,可以计算的频率范围很广。给出了IASP 91模式中600 km深源4- 5000 s周期合成剖面的实例。这种合成方法对从宽频带地震记录分析中确定地球结构有很大的帮助。
In a previous paper, [Cummins et al., 1994, hereafter referred to as DSMI], we presented theoretical and computational results for calculating complete SH (toroidal) synthetic seismograms for spherically symmetric, isotropic, media. We now extend our treatment to the P-SV (spheroidal) part of the wavefield. No asymptotic approximations are used, and the synthetics, which include both body and surface waves, can be computed for a broad range of frequencies. Examples of synthetic profiles are presented for a 600km deep source in the IASP91 model for the period range 4-5000s. Such synthetics can contribute greatly to the determination of earth structure from analyses of broadband seismograms.