大地震前震中上空电离层全电子含量异常研究
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摘要
采用IGS(International GPS Service)网站提供的电离层垂直全电子含量(vertical total elearon content,记为VTEC),分析研究了1998—2006年发生在中国大陆地区的30个M_s≥6.0的地震.采用统计处理的方法,讨论了地震前后15d内电离层全电子含量的变化,分别对震中上空电离层全部TEC资料进行了分析.
In this paper we analyzed 30 M_s≥6.0 earthquakes which occurred in the mainland of China from May 1998 to December 2006 by the vertical total electron content(VTEC)supplied by IGS(International GPS Service)web.Utilizing the statistical methods,we discussed the variations of the ionospheric TEC oc- curred 15 days beforg and after earthquakes.Selectively,we studies all ionosphereic TEC data above the epi- center and the data excluding magnetic storm.
In this paper we analyzed 30 M_s≥6.0 earthquakes which occurred in the mainland of China from May 1998 to December 2006 by the vertical total electron content(VTEC)supplied by IGS(International GPS Service)web.Utilizing the statistical methods,we discussed the variations of the ionospheric TEC oc- curred 15 days beforg and after earthquakes.Selectively,we studies all ionosphereic TEC data above the epi- center and the data excluding magnetic storm.
引文
[1]张国民，尹京苑．地震预报研究的发展展望[J]．防灾减灾工程学报，2003，23(4)：83-90．ZHANG Guo-min,YIN Jing-yuan.Developments and prospects of earthquake prediction study[J].Journal of Disaster Pre- vention and Mitigation Engineering,2003,23(4):83-90.(in Chinese)
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[5]张晶，顾国华．GPS水平位移时间序列地震短期信息特征分析[J]．地震，2006，26(1)：40-46．ZHANG Jing,GU Guo-hua.Analyzing the characteristics of short-term anomalous information of GPS time-series data before earthquake[J].Earthquake,2006,26(1):40-46.(in Chinese)
[6]夏淳亮，万卫星，袁洪，等．2000年7月和2003年10月大磁暴期间东南亚低纬度电离层的GPS TEC的相应研究[J]．空间科学学报，2005，25(4)：259-266．XIA Chun-liang,WAN Wei-xing,YUAN Hong,et al.Analysis of the intense magneticstrom of July,2000 and of October, 2003 Using the Technique for Nowcasting of GPS TEC Data.China J.Space Sci,2005,25(4):259-266.(in Chinese)
[7]商社平，郭秉善，史建魁，等．不同地磁扰动事件期间全球电离层的扰动形态分析[J]．地球物理学报，2003，46(1)：11-17．SHANG She-ping,GUO Bing-shan,SHI Jian-kui,et al.Morphologies of global ionospheric disturbances during different type geomagnetic disturbance events[J].Chinese Jounal of Geophysics,2003,46(1):11-17.(in Chinese)
[8]CHEN YUH-ING,LIU JANN-YENQ,TSAI YI-BEN,et al.Statistical tests for pre-earthquake ionospheric anomaly[J]. TAO,2004,15(3):385-396.
[2]李均之，夏雅琴，陈维升，等．临震预测实验及有关预测机理[C]∥香山科学会议第133次学术讨论会论文集．北京：科学出版社，2002：3-11．LI Jun-zhi,XIA Ya-qin,CHEN Wei-sheng,et al.The experiments of imminent earthquake prediction and the mechanism of relational prediction[C]∥The Transactions of 133~(rd) China Xiangshan Science Conference.Beijing:Science Press,2002: 3-11.(in Chinese)
[3]LIU J Y,CHUO Y J,SHAN S J,et al.Pre-earthquake ionospheric anomalies registered by continuous GPS TEC measure- ments[J].Annales Geophysieae,2004,22:1585-1593.
[4]吴云，乔学军，周义炎．利用地基GPS探测震前电离层TEC异常[J]．大地测量与地球动力，2005，25：36-40．WU Yun,QIAO Xue-jun,ZHOU Yi-yan.Preseismic ionospheric TEC anomaly detected by uGround-based GPS[J].Journal of Geodesy and Geodynamics,2005,25(2):36-40.(in Chinese)
[5]张晶，顾国华．GPS水平位移时间序列地震短期信息特征分析[J]．地震，2006，26(1)：40-46．ZHANG Jing,GU Guo-hua.Analyzing the characteristics of short-term anomalous information of GPS time-series data before earthquake[J].Earthquake,2006,26(1):40-46.(in Chinese)
[6]夏淳亮，万卫星，袁洪，等．2000年7月和2003年10月大磁暴期间东南亚低纬度电离层的GPS TEC的相应研究[J]．空间科学学报，2005，25(4)：259-266．XIA Chun-liang,WAN Wei-xing,YUAN Hong,et al.Analysis of the intense magneticstrom of July,2000 and of October, 2003 Using the Technique for Nowcasting of GPS TEC Data.China J.Space Sci,2005,25(4):259-266.(in Chinese)
[7]商社平，郭秉善，史建魁，等．不同地磁扰动事件期间全球电离层的扰动形态分析[J]．地球物理学报，2003，46(1)：11-17．SHANG She-ping,GUO Bing-shan,SHI Jian-kui,et al.Morphologies of global ionospheric disturbances during different type geomagnetic disturbance events[J].Chinese Jounal of Geophysics,2003,46(1):11-17.(in Chinese)
[8]CHEN YUH-ING,LIU JANN-YENQ,TSAI YI-BEN,et al.Statistical tests for pre-earthquake ionospheric anomaly[J]. TAO,2004,15(3):385-396.
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