Ionospheric perturbations in plasma parameters before global strong earthquakes

doi:10.1016/j.asr.2013.12.029

	Ionospheric perturbations in plasma parameters before global strong earthquakes
	Liu, Jing 1,2,3; Huang, Jianping 1; Zhang, Xuemin 1
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/132A11/85636]
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.