Ionospheric perturbations in plasma parameters before global strong earthquakes | |
Liu, Jing1,2,3; Huang, Jianping1; Zhang, Xuemin1 | |
刊名 | ADVANCES IN SPACE RESEARCH |
2014-03-01 | |
卷号 | 53期号:5页码:776-787 |
关键词 | Ionospheric perturbations Abnormities of EQs DEMETER satellite |
ISSN号 | 0273-1177 |
DOI | 10.1016/j.asr.2013.12.029 |
文献子类 | Article |
英文摘要 | Based on the electron density (Ne) and temperature (Te) data from DEMETER, the ionospheric perturbations before 82 Ms >= 7.0 earthquakes (EQs) during 2005-2010 were studied, using moving median and space difference methods within 10 days before and 2 days after these events in local nighttime. It was found that the plasma parameters disturbances appeared before 49 EQs, in which more disturbances were detected before shallow-focus earthquakes than deep ones, and there was little difference between continental and oceanic ones, both exceeding 1/2 percentage. For the disturbed time, more perturbations were seen in 1, 3, 5, 6, 8 days before EQs and 1 day after EQs. For the spatial distribution, the anomalies before EQs were not just above the epicenters, but shifted equatorward with several degrees to almost twenty degrees. Most of the abnormities were positive ones, which demonstrate that Ne increases before EQs at the altitude of 670 km of DEMETER. Perturbations of Ne were more than that of Te, which illustrates that Ne is much more sensitive to seismic activity than Te. (C) 2014 Published by Elsevier Ltd. on behalf of COSPAR. |
WOS关键词 | WENCHUAN EARTHQUAKE ; DEMETER SATELLITE ; ELECTRON-DENSITY ; STATISTICAL-ANALYSIS ; ANOMALIES ; PRECURSORS ; SUMATRA ; TAIWAN ; TIME ; TEC |
WOS研究方向 | Astronomy & Astrophysics ; Geology ; Meteorology & Atmospheric Sciences |
语种 | 英语 |
出版者 | ELSEVIER SCI LTD |
WOS记录号 | WOS:000333004000007 |
资助机构 | National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; 41104030) ; 41104030) ; 41104030) ; 41104030) ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; 41104030) ; 41104030) ; 41104030) ; 41104030) ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; 41104030) ; 41104030) ; 41104030) ; 41104030) ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National Natural Science Foundation of China(41204109 ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; National High-Tech Research and Development Program of China (863 Program)(2012AA121004) ; 41104030) ; 41104030) ; 41104030) ; 41104030) |
内容类型 | 期刊论文 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/85637] |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Liu, Jing |
作者单位 | 1.China Earthquake Adm, Inst Earthquake Sci, Beijing 100036, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Liu, Jing,Huang, Jianping,Zhang, Xuemin. Ionospheric perturbations in plasma parameters before global strong earthquakes[J]. ADVANCES IN SPACE RESEARCH,2014,53(5):776-787. |
APA | Liu, Jing,Huang, Jianping,&Zhang, Xuemin.(2014).Ionospheric perturbations in plasma parameters before global strong earthquakes.ADVANCES IN SPACE RESEARCH,53(5),776-787. |
MLA | Liu, Jing,et al."Ionospheric perturbations in plasma parameters before global strong earthquakes".ADVANCES IN SPACE RESEARCH 53.5(2014):776-787. |
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