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Seismic waveform simulation in oceanic area

Seismic waveform simulation in oceanic area
海洋区域地震波形模拟
批准号:
21740334
负责人:
NAKAMURA Takeshi
金额:
$1.33万
依托单位国家:
日本
项目类别:
Grant-in-Aid for Young Scientists (B)
财政年份:
2009
资助国家:
日本
项目状态:
已结题
起止时间:
2009 至 2010

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项目成果

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相关文献

中文摘要
翻译
我们提出了一个负责任的FDM解决方案,以计算地震波传播的模型与陆地和海底地形。利用有限差分程序和构造模型模拟了2009年骏河湾地震震源区周围的三维地震波传播。合成波形的总体特征与观测波形吻合较好。本文还发现,高阶有限差分法可能会引起数值误差,不适合于复杂水深结构的计算。
英文摘要
We proposed a responsible FDM solution in order to compute seismic wave propagation in models with both land and ocean-bottom topographies. We simulated 3D seismic wave propagation around the source region of the 2009 Suruga Bay earthquake employing the FDM code and the constructed structure model. The overall features of the synthetic waveforms fit well with the observed ones. We also found that the high order finite difference may cause the numerical error and be unsuitable to apply the calculation for a complex bathymetric structure.
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