摘要
本文利用可视化分析和统计分析的数据处理方法，结合2008年5月12日汶川Ms8．0地震和2007年4月20日东海慨6．3地震两个震例，进行了探索性研究，阐述了基于DEME—TER卫星观测数据提取电离层地震前兆信息的思路，通过对电磁场频谱、等离子体数密度、温度等物理参量的可视化展现，探讨了电离层扰动与地震的关系。结果表明，在排除电离层内一些典型干扰的前提下，地震发生前几天或者几个小时电离层扰动可以被观测到。
The paper uses the data-processing methods of visual analysis and statistical analysis, and carried out an exploratory study for two cases of the May 12, 2008 Wenchuan MsS. 0 earthquake and the April 20, 2007 Ms6. 3 earthquake in the East China Sea.Through the visual display of the spectrum of electromagnetic fields, plasma density, temperature and other physical parameters based on the DEMETER satellite observation data,it expounded a working idea to take ionospheric earthquake-related information and explored the relationship between the ionosphere disturbances and the earthquake occurrence. The result shows that ruling out some typical disturbances in the ionosphere, the ionospheric disturbances happened several days or several hours before the two earthquake.
出处
《地震》
CSCD
北大核心
2009年第B10期67-75,共9页
Earthquake
