| 水平层状介质视波速比响应特性的数值模拟 |
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| 引用本文： | 钱家栋,虞雪君,曹爱民,李劭秾.水平层状介质视波速比响应特性的数值模拟[J].中国地震研究,2013,27(4):427-439. |
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| 作者姓名： | 钱家栋 虞雪君 曹爱民 李劭秾 |
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| 作者单位： | 中国地震局地震预测研究所，北京100036;浙江省地震局，杭州310013;防灾科技学院，河北065201;郑州大学信息工程学院，河南450000 |
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| 摘 要： | This paper deals with the response features of AR （apparent ratio of seismic wave velocities to the changes of TR （true ratio of wave velocities） in the horizontal layered model by mathematical modeling. The results show that： （1） the response features of AR are associated with the parameters of the structure and its dynamic changes, and the relative position between the hypocenters and the monitoring networks, showing complicated patterns strongly related to the concrete paths of propagation of seismic waves from the source to the receiver in the observatories of the network; （2） the depth of the seismic source would have important influence on the response features of AR, especially the capacity to carry the anomalous information in the condition of the earth media, being in the anomalous state would be greater for those earthquakes which occur inside the anomalous layers than those underneath the anomalous layers; （3） the response features of AR are clearly related to the changes of TR （true ratio of wave velocities） instead of changes of wave velocities themselves, i.e. the response could be small as the changes in TR is small even in the case of large changes in the wave velocities. It is suggested that more attention must be paid to all these features in combination with detailed investigation of the velocity structure of the earth media in the study region and best fitting of precise hypocenter locations when one wants to obtain the reliable precursors from the changes in AR.
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| 关 键 词： | 水平层状介质 地震波速比 响应特性 数值模拟 地震波速度 表观 震源位置 监测网络 |
| 收稿时间： | 8/8/2013 12:00:00 AM |
Numerical Simulation of the Response Features of Apparent Seismic Wave Velocity Ratio in a Horizontal Layered Medium1 |
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| Qian Jiadong,Yu Xuejun,Cao Aimin and Li Shaonong.Numerical Simulation of the Response Features of Apparent Seismic Wave Velocity Ratio in a Horizontal Layered Medium1[J].Earthquake Research in China,2013,27(4):427-439. |
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| Authors: | Qian Jiadong Yu Xuejun Cao Aimin and Li Shaonong |
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| Institution: | [1]Institute of Earthquake Science, China Earthquake Administration, Beijing 100036, China [2]Earthquake Administration of Zhejiang Province, Hangzhou 310013, China [3]Institute of Disaster Prevention, Yanjiao 065201, Hebei, China [4]School of Information Engineering, Zhengzhou University, Zhengzhou 450000, China |
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| Abstract: | Apparent ratio of seismic wave velocities True ratio of seismic wavevelocities Response features Simulation |
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| Keywords: | Apparent ratio of seismic wave velocities True ratio of seismic wave velocities Response features Simulation |
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