欢迎访问《地震》,

地震 ›› 2008, Vol. 28 ›› Issue (3): 14-22.

• • 上一篇    下一篇

西藏改则6.9级地震前的电离层电磁扰动

张学民, 刘静, 钱家栋, 申旭辉, 蔡晋安, 欧阳新艳, 赵庶凡   

  1. 中国地震局地震预测研究所, 北京 100036
  • 收稿日期:2008-02-13 修回日期:2008-03-05 出版日期:2008-07-31 发布日期:2021-10-29
  • 作者简介:张学民(1969-), 女, 河北海兴人, 副研究员, 主要从事地震电磁学及壳幔结构反演等研究。
  • 基金资助:
    国家科技支撑计划课题和中国地震局地震预测研究所基本科研业务经费项目

Ionospheric electromagnetic disturbance before Gaize earthquake with MS6.9, Tibet

ZHANG Xue-min, LIU Jing, QIAN Jia-dong, SHEN Xu-hui, CAI Jin-an, OUYANG Xin-yan, ZHAO Shu-fan   

  1. Institute of Earthquake Science, CEA, Beijing 100036
  • Received:2008-02-13 Revised:2008-03-05 Online:2008-07-31 Published:2021-10-29

摘要: 2008年1月9日西藏改则县发生6.9级地震, 震前2天法国DEMETER卫星飞过震中上空时记录到离子温度(Ti)和超低频电场异常。 文中通过震前10天内多条轨道的数据对比和分析处理, 对空间异常的识别和判定给出了两种有效的方法, 同时也积累了空间地震电磁前兆震例和异常信号判别的经验。

关键词: DEMETER, 离子温度, 超低频电场, 扰动信息

Abstract: On Jan.9, 2008, an MS6.9 earthquake of took place in Gaize, Tibet.2 days ago, anomalies of Ti and ULF electric field were recorded when DEMETER satellite of France flew above this epicentral area. In this paper, by means of comparing and processing the data of many orbits during 10 days, two effective methods were provided for distinguishing and determining spatial seismic anomalies. At the meantime, we accumulated the earthquake events with spatial seismic electromagnetic precursors and the experiences in distincting the spatial anomalous signals.

Key words: DEMETER, Ion temperature, ULF electric field, Disturbance

中图分类号: