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| ARMAģ���ڵ�������TEC�쳣̽���е�Ӧ�� | |
| 引用本文： | 李磊,张淑芳,胡青,尹淑慧.ARMAģ���ڵ�������TEC�쳣̽���е�Ӧ��[J].大地测量与地球动力学,2015,35(1):62-66. |
| 作者姓名： | 李磊 张淑芳 胡青 尹淑慧 |
| 作者单位： | 1 大连海事大学物理系， 大连市凌海路1号， 116026 2 大连海事大学信息科学技术学院， 大连市凌海路1号， 116026 |
| 基金项目： | 国家863计划(2009AA12Z312) ;国家自然科学基金(60972091) ;中央高校基本科研业务费(3132015147，2011QN155) |
| 摘 要： | ????IGS??????????????????????TEC????,??????????з????????е?ARMA????2008-05-12??Ms8.0?????????TEC??????д???,??ARMA???TEC????????????TEC?????ο??,?????????????TEC??????????о??????????,??????????????о??????????????μ??????,?·????????13??d??12??d??10??d??7??d?????????TEC?????????????????????TEC?????????,????ARMA??????????Ч???????????TEC?????????,??????????? |
| 关 键 词： | ARMA??? ????? ???????? ???? |
| 收稿时间： | 2014-01-22 |
Application of ARMA Model in Detecting Ionospheric TEC Anomaly Prior to Earthquake |
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| LI Lei,ZHANG Shufang,HU Qing,YIN Shuhui.Application of ARMA Model in Detecting Ionospheric TEC Anomaly Prior to Earthquake[J].Journal of Geodesy and Geodynamics,2015,35(1):62-66. | |
| Authors: | LI Lei ZHANG Shufang HU Qing YIN Shuhui |
| Institution: | 1 Department of Physics, Dalian Maritime University, 1 Linghai Road, Dalian 116026, China 2 College of Information Science and Technology, Dalian Maritime University, 1 Linghai Road, Dalian 116026, China |
| Abstract: | In this paper, we use ionospheric TEC data provided by International GPS Service (IGS) tracking stations to examine the ionospheric variations during the Ms8.0 Wenchuan earthquake that occurred on May 12, 2008, in China. In data processing, the ARMA model based on the theory of time series is adopted, and the predicted TEC of ARMA model is regard as the background reference value of TEC in the ionosphere. Comparing the results with the previous conclusion, we also found the anomalous ionospheric disturbances 13 d,12 d,10 d and 7 d before the earthquake. The results indicate that the establishment of the ARMA model is reasonable and reliable, and it also can achieve high accuracy in the detection of the ionospheric TEC anomalies prior to earthquake effectively, based on the data derived from IGS. |
| Keywords: | ARMA model ionosphere total electron content earthquake |
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