A study of the ionospheric disturbances associated with strong earthquakes using the empirical orthogonal function analysis
文献类型：期刊论文
| 作者 | Liu, Jing1; Wan, Weixing2; Zhou, Chen3; Zhang, Xuemin1; Liu, Yi3; Shen, Xuhui4 |
| 刊名 | JOURNAL OF ASIAN EARTH SCIENCES
 |
| 出版日期 | 2019-03-01 |
| 卷号 | 171页码:225-232 |
| 关键词 | GPS TEC EOF method Seismo-ionospheric disturbance |
| ISSN号 | 1367-9120 |
| DOI | 10.1016/j.jseaes.2018.10.007 |
| 英文摘要 | In this study, an ionospheric logTEC model has been constructed using an empirical orthogonal function (EOF) decomposition method. The main orders (1-9 orders) of this EOF model represent the ionospheric background, while the rest high orders represent ionospheric TEC perturbations. Based on this model, logTEC data during 16 Ms >= 8.0 earthquakes from 2000 to 2012 have been analyzed. We found that ionospheric disturbances occurred in 10 earthquakes. Ionospheric abnormities were clearly observed 5 days before the earthquakes, but ionospheric disturbances can also be seen 1 day before, and 1 day and 2 days after the earthquakes. For the TEC data, the possibility of positive (enhanced TEC) and negative (decreased TEC) abnormities is almost the same. Furthermore, by using the simulation results of ionospheric electric field and SAMI2 model, we show that an abnormal westward electric field can lead to electron density enhancements equatorward and decrease polarward of the epicenters, and vice versa for an eastward abnormal electric field. |
| WOS关键词 | ELECTRIC-FIELD PENETRATION ; ANOMALIES ; MODEL ; DEMETER |
| 资助项目 | Basal Research Fund[2015IES0101] ; China Scholarship Fund, International Cooperation Project[2014DFR21280] ; National Natural Science Foundation of China[41511130032] |
| WOS研究方向 | Geology |
| 语种 | 英语 |
| WOS记录号 | WOS:000460709300019 |
| 出版者 | PERGAMON-ELSEVIER SCIENCE LTD |
| 资助机构 | Basal Research Fund ; Basal Research Fund ; China Scholarship Fund, International Cooperation Project ; China Scholarship Fund, International Cooperation Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basal Research Fund ; Basal Research Fund ; China Scholarship Fund, International Cooperation Project ; China Scholarship Fund, International Cooperation Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basal Research Fund ; Basal Research Fund ; China Scholarship Fund, International Cooperation Project ; China Scholarship Fund, International Cooperation Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Basal Research Fund ; Basal Research Fund ; China Scholarship Fund, International Cooperation Project ; China Scholarship Fund, International Cooperation Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/90895]  |
| 专题 | 地质与地球物理研究所_中国科学院地球与行星物理重点实验室 |
| 通讯作者 | Liu, Jing |
| 作者单位 | 1.China Earthquake Adm, Inst Earthquake Forecasting, Beijing 100036, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Wuhan Univ, Wuhan 430072, Hubei, Peoples R China 4.China Earthquake Adm, Inst Crustal Dynam, Beijing 100085, Peoples R China |
| 推荐引用方式 GB/T 7714 | Liu, Jing,Wan, Weixing,Zhou, Chen,et al. A study of the ionospheric disturbances associated with strong earthquakes using the empirical orthogonal function analysis[J]. JOURNAL OF ASIAN EARTH SCIENCES,2019,171:225-232. |
| APA | Liu, Jing,Wan, Weixing,Zhou, Chen,Zhang, Xuemin,Liu, Yi,&Shen, Xuhui.(2019).A study of the ionospheric disturbances associated with strong earthquakes using the empirical orthogonal function analysis.JOURNAL OF ASIAN EARTH SCIENCES,171,225-232. |
| MLA | Liu, Jing,et al."A study of the ionospheric disturbances associated with strong earthquakes using the empirical orthogonal function analysis".JOURNAL OF ASIAN EARTH SCIENCES 171(2019):225-232. |
入库方式： OAI收割
来源：地质与地球物理研究所
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