| 基于电离层层析成像技术探测汶川地震前电离层异常 |
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| 引用本文： | 杨剑,吴云,周义炎.基于电离层层析成像技术探测汶川地震前电离层异常[J].大地测量与地球动力学,2011,31(1):9-14. |
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| 作者姓名： | 杨剑 吴云 周义炎 |
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| 作者单位： | 中国地震局地震研究所，武汉 430071 |
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| 基金项目： | 国家科技支撑项目(2008BAC35B02); 中国地震局地震研究所所长基金(IS200856071) |
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| 摘 要： | 以2008年5月12日汶川Ms8.0地震为例,利用电离层层析成像技术重建了震前5月8-10日震中附近上空电离层的电子密度分布(UT9:00),发现5月9日出现电离层异常,且该异常在时空上与同一时段的电离层VTEC异常分布结果一致(排除空间天气活动对电离层造成的可能干扰后),认为该异常即是地震的电离层前兆信息.研究表明:...
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| 关 键 词： | 电离层 层析成像 地震 电离层异常 重建 |
PROBE INTO SEISMO-IONOSPHERIC ANOMALY OF WENCHUAN Ms8.0 EARTHQUAKE BASED ON COMPUTERIZED IONOSPHERIC TOMOGRAPHY |
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| Yang Jian,Wu Yun,Zhou Yiyan.PROBE INTO SEISMO-IONOSPHERIC ANOMALY OF WENCHUAN Ms8.0 EARTHQUAKE BASED ON COMPUTERIZED IONOSPHERIC TOMOGRAPHY[J].Journal of Geodesy and Geodynamics,2011,31(1):9-14. |
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| Authors: | Yang Jian Wu Yun Zhou Yiyan |
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| Institution: | Yang Jian,Wu Yun and Zhou Yiyan(Institute of Seismology,CEA,Wuhan 430071) |
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| Abstract: | The technology of Computerized Ionospheric Tomography was used to reconstruct the distribution of electron density on UT9:00 from May 8th to May 10th,2008 before Wenchuan Ms8.0 earthquake that occurred on May 12th.It is found that an ionospheric anomaly had taken place on May 9th,and the aspect about when and where this anomaly occurred is consistent with the conclusion made by VTEC analysis.After eliminating the possible impacts that space weather event existed in the ionosphere,we can undoubtedly maintain... |
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| Keywords: | ionosphere tomography earthquake ionospheric anomaly reconstruction |
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