Nighttime ionospheric enhancements induced by the occurrence of an evening solar eclipse

doi:10.1002/jgra.50551

	Nighttime ionospheric enhancements induced by the occurrence of an evening solar eclipse
	Chen, Gang 1; Qi, Hao 1; Ning, Baiqi 2; Zhao, Zhengyu 1; Yao, Ming 3; Deng, Zhongxing 1; Li, Ting 1; Huang, Shuo 1; Feng, Wenchao 1; Wu, Jianhua 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2013-10-01
卷号	118 期号:10 页码:6588-6596
关键词	nighttime enhancement solar eclipse plasma flux
ISSN号	2169-9380
DOI	10.1002/jgra.50551
文献子类	Article
英文摘要	The solar eclipse on 15 January 2010 traversed Asia and completed its travel on the Shandong Peninsula in China at sunset. Two vertical incidence ionosondes at Wuhan and Beijing and the oblique incidence ionosonde network in North China were implemented to record the ionospheric response to the solar eclipse. Following the initial electron density decrease caused by the eclipse, the ionosphere was characterized by a strong premidnight enhancement, and a subsequent ionospheric decay, and a similar to 10h later postmidnight enhancement. Neither geomagnetic disturbance occurred during the eclipse day nor did obvious nighttime peak appear for the 10 day mean of the F2-layer critical frequency (foF2). The electron density profilogram of the Beijing ionosonde indicates that the two enhancements were the result of the plasma flux downward from the top ionosphere, possibly due to the steep decrease of the ionospheric electron density and plasma temperature during the solar eclipse. The two-dimensional differential foF2 maps present the regional variations of the nighttime electron density peaks and decay. Both the pre- and postmidnight enhancements initially appeared in a belt almost in parallel with the eclipse track and then drifted southward. The different magnitudes of greatest eclipse in the umbra and outside tend to account for the different occurrence times of the plasma flux. The ionospheric decay following the premidnight enhancement is also considered as a consequence of the eclipse shade.
WOS关键词	TOTAL ELECTRON-CONTENT ; 3 OCTOBER 2005 ; MID-LATITUDES ; F-REGION ; TIME IONOSPHERE ; BEHAVIOR ; INCREASES ; WINTER ; F0F2 ; HEMISPHERES
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000330180600053
资助机构	National Natural Science Foundation of China(41074115) ; National Natural Science Foundation of China(41074115) ; National 863 High-Tech Plan of China(SS2012AA120503) ; National 863 High-Tech Plan of China(SS2012AA120503) ; National Natural Science Foundation of China(41074115) ; National Natural Science Foundation of China(41074115) ; National 863 High-Tech Plan of China(SS2012AA120503) ; National 863 High-Tech Plan of China(SS2012AA120503) ; National Natural Science Foundation of China(41074115) ; National Natural Science Foundation of China(41074115) ; National 863 High-Tech Plan of China(SS2012AA120503) ; National 863 High-Tech Plan of China(SS2012AA120503) ; National Natural Science Foundation of China(41074115) ; National Natural Science Foundation of China(41074115) ; National 863 High-Tech Plan of China(SS2012AA120503) ; National 863 High-Tech Plan of China(SS2012AA120503)
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/87964]
专题	中国科学院地质与地球物理研究所
通讯作者	Chen, Gang
作者单位	1.Wuhan Univ, Ionosphere Lab, Sch Elect Informat, Wuhan 430072, Hubei, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing, Peoples R China 3.Nanchang Univ, Inst Space Sci & Technol, Nanchang, Jiangxi, Peoples R China
推荐引用方式 GB/T 7714	Chen, Gang,Qi, Hao,Ning, Baiqi,et al. Nighttime ionospheric enhancements induced by the occurrence of an evening solar eclipse[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2013,118(10):6588-6596.
APA	Chen, Gang.,Qi, Hao.,Ning, Baiqi.,Zhao, Zhengyu.,Yao, Ming.,...&Wu, Chen.(2013).Nighttime ionospheric enhancements induced by the occurrence of an evening solar eclipse.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,118(10),6588-6596.
MLA	Chen, Gang,et al."Nighttime ionospheric enhancements induced by the occurrence of an evening solar eclipse".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 118.10(2013):6588-6596.