Longitudinal Thin Structure of Equatorial Plasma Depletions Coincidently Observed by Swarm Constellation and all-Sky Imager

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	Longitudinal Thin Structure of Equatorial Plasma Depletions Coincidently Observed by Swarm Constellation and all-Sky Imager
	Xiong, Chao; Xu, Jiyao; Wu, Kun; Yuan, Wei
作者部门	空间科学部
发表期刊	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2018
卷号	123 期号:2 页码:1593-1602
ISSN	2169-9380
语种	英语
摘要	The lower pair satellites of Swarm mission, flying side-by-side and separated by 1.4 degrees in longitude (about 150 km), usually observed equatorial plasma depletions (EPDs) showing quite different structures, and sometime even only one satellite observed EPD. In this study, we provided 6-h continuous observations of EPDs on the night of 23-24 September 2014, from an all-sky imager located at Fuke (geographic:19.5 degrees N,109.1 degrees E), south of China. From the airglow images the EPDs were found with longitudinal extensions of about 50 km and all tilted from northwest to southeast direction. We further checked the in situ electron density simultaneously measured by the Swarm lower pair satellites and found the differences of Swarm in situ electron densities explained well by the longitudinally thin structure of EPDs observed from the all-sky imager. During later periods the bifurcation and merging were observed by the airglow images, and it was the first time to report both processes in the evolution of one EPD. The bifurcation was first observed at the higher-latitude part, and then observed at lower latitudes of EPD. The subbranches generated through bifurcation showed even thinner longitudinal extension of about 20-30 km, and later the subbranches started to merge with each other, forming a really complicated mesh of depleted regions.
收录类别	SCI
文献类型	期刊论文
条目标识符	http://ir.nssc.ac.cn/handle/122/6246
专题	空间科学部
通讯作者	Xiong, Chao; Xu, Jiyao; Wu, Kun; Yuan, Wei
推荐引用方式 GB/T 7714	Xiong, Chao,Xu, Jiyao,Wu, Kun,et al. Longitudinal Thin Structure of Equatorial Plasma Depletions Coincidently Observed by Swarm Constellation and all-Sky Imager[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2018,123(2):1593-1602.
APA	Xiong, Chao,Xu, Jiyao,Wu, Kun,&Yuan, Wei.(2018).Longitudinal Thin Structure of Equatorial Plasma Depletions Coincidently Observed by Swarm Constellation and all-Sky Imager.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,123(2),1593-1602.
MLA	Xiong, Chao,et al."Longitudinal Thin Structure of Equatorial Plasma Depletions Coincidently Observed by Swarm Constellation and all-Sky Imager".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 123.2(2018):1593-1602.

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