Synthetic SH seismograms in a laterally varying medium by the discrete wavenumber method
Synthetic SH seismograms in a laterally varying medium by the discrete wavenumber method
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DOI：
10.1111/j.1365-246x.1985.tb05168.x
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发表时间：
1985-10
影响因子：
2.8
通讯作者：
M. Campillo;M. Bouchon
中科院分区：
文献类型：
--
作者：
M. Campillo;M. Bouchon
概括。我们提出了一种计算具有不规则埋藏界面的半空间中震源产生的 SH 波场的新方法。衍射界面由体力的分布表示。使用离散波数方法评估求解边界条件所需的格林函数。我们的方法依赖于在源介质配置中引入周期性以及以规则间距离散化界面。所开发的技术适用于任意形状的边界，并且在所有频率下都有效。一些简单配置的计算示例显示了该方法的功能。
Summary. We present a new method to calculate the SH wavefield produced by a seismic source in a half-space with an irregular buried interface. The diffractiog interface is represented by a distribution of body forces. The Green’s functions needed to solve the boundary conditions are evaluated using the discrete wavenumber method. Our approach relies on the introduction of a periodicity in the source-medium configuration and on the discretization of the interface at regular spacing. The technique developed is applicable to boundaries of arbitrary shapes and is valid at all frequencies. Some examples of calculation in simple configurations are presented showing the capabilities of the method.