• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Natural hazards and earth system sciences >The seismic signatures of the 2009 Shiaolin landslide in Taiwan
【24h】

The seismic signatures of the 2009 Shiaolin landslide in Taiwan

机译：台湾2009年Shiaolin滑坡的地震特征。

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The Shiaolin landslide occurred on 9 August 2009 after Typhoon Morakot struck Taiwan, claiming over 400 lives. The seismic signals produced by the landslide were recorded by broadband seismic stations in Taiwan. The time-frequency spectra for these signals were obtained by the Hilbert-Huang transform (HHT) and were analyzed to obtain the seismic characteristics of the landslide. Empirical mode decomposition (EMD) was applied to differentiate weak surface-wave signals from noise and to estimate the surface-wave velocities in the region. The surface-wave velocities were estimated using the fifth intrinsic mode function (IMF 5) obtained from the EMD. The spectra of the earthquake data were compared. The main frequency content of the seismic waves caused by the Shiaolin landslide were in the range of 0.5 to 1.5 Hz. This frequency range is smaller than the frequency ranges of other earthquakes. The spectral analysis of surface waves (SASW) method is suggested for characterizing the shear-wave velocities of the strata in the region.
机译：Shiaolin滑坡发生在2009年8月9日台风莫拉克袭击台湾后，造成400多人丧生。滑坡产生的地震信号由台湾的宽带地震台站记录。这些信号的时频谱是通过希尔伯特-黄变换（HHT）获得的，并进行了分析以获得滑坡的地震特征。应用经验模式分解（EMD）来区分微弱的表面波信号和噪声，并估计该区域的表面波速度。使用从EMD获得的第五本征模函数（IMF 5）估算表面波速度。比较了地震数据的频谱。 Shiaolin滑坡引起的地震波的主频率含量在0.5至1.5 Hz的范围内。该频率范围小于其他地震的频率范围。建议使用表面波谱分析（SASW）方法来表征该地区地层的横波速度。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号