基于COSMIC技术的震前电离层异常研究
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摘要
介绍COSMIC技术反演电离层电子密度的研究现状、技术和方法,验证其可靠性;并利用COSMIC掩星数据计算分析2011-03-11东日本大地震震前5d及地震当天震区上空电离层电子密度分布,探测到显著的震前电离层异常现象,证明COSMIC技术研究地震电离层异常的可行性。
We systematically introduced the COSMIC ionospheric electron density inverseon technology theories and methods,and verified its reliability.Then,using COSMIC data,we calculated and analyzed 5-days'seismic ionospheric electron density distribution over the seismic area,which happened on March 11,2011 in north-east Japan.From the research we have done,we have got significant phenomenon on seismo-ionospheric anomalies and confirm the truth of feasibility on this field.
We systematically introduced the COSMIC ionospheric electron density inverseon technology theories and methods,and verified its reliability.Then,using COSMIC data,we calculated and analyzed 5-days'seismic ionospheric electron density distribution over the seismic area,which happened on March 11,2011 in north-east Japan.From the research we have done,we have got significant phenomenon on seismo-ionospheric anomalies and confirm the truth of feasibility on this field.
引文
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[12]杨剑,吴云,周义炎,等.利用GPS无线电掩星数据研究震前电离层异常[J].大地测量与地球动力学,2008,28(1):16-22.
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[2]丁鉴海,索玉成,余素荣.地磁场与电离层异常现象及其与地震的关系[J].空间科学学报,2005,25(6):536-542.
[3]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学,2005,25(2):36-40.
[4]张强.震前电离层TEC异常分析[J].大地测量与地球动力学,2007,27(3):91-96.
[5]张强.地基GPS监测电离层TEC及其与地震活动关系的研究[D].武汉:中国地震局地震研究所,2007.
[6]Liu J Y,Chen Y I,Chou Y J,et al.Variation of iono-spherictotal electron content during the Chi-Chi earth-quake[J].Geophysical-Research Letters,2001,28(7):1383-1386.
[7]Plotkin V V.GPS detection of ionospheric perturbationbefore the 13February 2001,Salvador earthquake[J].Natural Hazards and Earth System Science,2003,3:249-253.
[8]Trigunait A,Parrot M,Pulinets S A,et al.Variation of i-onospheric electron density during the Bhuj seismic event[J].Armales Geophysicae,2004,22:4123-4131.
[9]吴小成.电离层无线电掩星技术研究[D].北京:中国科学院,2008.
[10]周义炎,吴云,乔学军,等.GPS掩星技术和电离层反演[J].大地测量与地球动力学,2005,25(2):29-35.
[11]Liu J Y,Chen YI,ChouY J,et a1.Variation of iono-spheric total electron content during the Chi—Chi earth-quake[J].Geophysical Research Letters,2001,28(7):1383-1386.
[12]杨剑,吴云,周义炎,等.利用GPS无线电掩星数据研究震前电离层异常[J].大地测量与地球动力学,2008,28(1):16-22.
[13]郭鹏.无线电掩星技术与CHAMP掩星资料反演[D].北京:中国科学院,2005.
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