| 用佘山地震台观测资料进行中长期地震趋势异常分析 |
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| 引用本文： | 倪友忠,陈军,赵伦,杨其明,郝长安,沈卫东,钟卫星,张欢,朱国豪.用佘山地震台观测资料进行中长期地震趋势异常分析[J].地震地磁观测与研究,2007,28(3):38-42. |
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| 作者姓名： | 倪友忠 陈军 赵伦 杨其明 郝长安 沈卫东 钟卫星 张欢 朱国豪 |
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| 作者单位： | 中国上海,201602,佘山地震台 |
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| 基金项目： | 上海市地震局中青年课题基金 |
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| 摘 要： | 通过对上海观测的形变资料,运用EIS 2000软件,分析余山地震台倾斜记录资料的中期趋势.在排除干扰的前提下,结合差分、一阶差分等各种分析方法来分析这一区域的形变资料.发现强震发生前,余山地震台的倾斜仪器从中期趋势上出现了明显的趋势转折、加速、变化现象.在差分异常频次累加等分析方法中,也找到了类似的大震前的能量异常现象,值得关注.
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| 关 键 词： | 差分异常能量 常规差分 趋势分析 异常频次累加 |
| 文章编号： | 1003-3246（2007）03-0038-05 |
| 收稿时间： | 2007-01-12 |
| 修稿时间： | 2007-01-12 |
Study on the medium and long-term tendency with the observation data from Sheshan Seismic Station |
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| Ni Youzhong,Chen Jun,Zhao Lun,Yang Qiming,Hao Changan,Shen Weidong,Zhong Weixing,Zhang Huan,Zhu Guohao.Study on the medium and long-term tendency with the observation data from Sheshan Seismic Station[J].Seismological and Geomagnetic Observation and Research,2007,28(3):38-42. |
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| Authors: | Ni Youzhong Chen Jun Zhao Lun Yang Qiming Hao Changan Shen Weidong Zhong Weixing Zhang Huan Zhu Guohao |
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| Institution: | Sheshan Seismic Station, Shanghai 201602, China |
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| Abstract: | In this article, the medium-term tendency of observation data of clinometer in Sheshan Seismic Station is analyzed with EIS 2000 software. After eliminating the disturbance,several analysis methods, such as union difference and one-order difference are employed to analyze the deformation data of this region. It is found that before the occurrence of strong earthquake the medium tendency of clinometer observes in Sheshan Seismic Station shows obvious tendency transition, acceleration and change phenomena. The similar anomalous energy phenomena before strong earthquake are also recognized in the results from difference unusual frequency accumulation method. It is worth to paying attention. |
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| Keywords: | difference unusual energy conventional difference trend analysis unusual frequency accumulates |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
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