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| 2011年3月7~8日永胜站震前舒曼谐振异常数值模拟分析 | |
| 引用本文： | 闫小旭,周晨,张学民,欧阳新艳,赵正予.2011年3月7~8日永胜站震前舒曼谐振异常数值模拟分析[J].地震,2016,36(3):135-143. |
| 作者姓名： | 闫小旭 周晨 张学民 欧阳新艳 赵正予 |
| 作者单位： | 1.武汉大学电子信息学院, 湖北 武汉 430072; 2.中国地震局地震预测研究所, 北京 100036 |
| 基金项目： | 国家自然科学基金(41574146)资助 |
| 摘 要： | 2011年3月10日中国云南盈江发生5.8级地震, 3月11日日本本州岛东海岸附近海域发生9.0级地震。 2011年3月7日、 8日云南永胜地磁台站观测到了舒曼谐振前4阶振幅异常增大。 本文建立了基于三维时域有限差分方法的舒曼谐振模型, 利用该模型对盈江地震对永胜站观测到的舒曼谐振影响进行了数值分析。 通过对实验和模拟结果进行分析, 认为此次云南永胜观测到的舒曼谐振异常不仅与日本地震相关也可能与云南盈江地震相关。 |
| 关 键 词： | 舒曼谐振 地球电离层波导 舒曼谐振异常 时域差分 |
| 收稿时间： | 2016-03-11 |
Numerical Simulation of Schumann ResonanceAnomalies on March 7 to 8, 2011 at the Yongsheng Geomagnetic Station |
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| YAN Xiao-xu,ZHOU Chen,ZHANG Xue-min,OUYANG Xin-yan,ZHAO Zheng-yu.Numerical Simulation of Schumann ResonanceAnomalies on March 7 to 8, 2011 at the Yongsheng Geomagnetic Station[J].Earthquake,2016,36(3):135-143. | |
| Authors: | YAN Xiao-xu ZHOU Chen ZHANG Xue-min OUYANG Xin-yan ZHAO Zheng-yu |
| Institution: | 1. School of Electronic Information, Wuhan University, Hubei Wuhan 430072, China; 2. Institute of Earthquake Science, CEA, Beijing 100036, China |
| Abstract: | On March 10, 2011, an MS5.8 earthquake struck in Yingjiang, China. On March 11, 2011 an MW9.0 earthquake struck near the east coast of Japan. Yongsheng geomagnetic station in Yunnan observed that the amplitude of Schumann resonance increased exceedingly on March 7~8 , 2011. The Schumann resonance observations affected by Yingjiang earthquake in Yongsheng station were numerically simulated based on the mechanism of Schumann resonance anomalies and finite difference time domain method. The results show that the Schumann resonance anomaly is probably related to both the Yingjiang earthquake and Japan earthquake. |
| Keywords: | Schumann resonance Earth’s ionosphere waveguide Schumann resonance anomalies |
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