Longitudinal Thin Structure of Equatorial Plasma Depletions Coincidently Observed by Swarm Constellation and all-Sky Imager
文献类型：期刊论文
| 作者 | Xiong, Chao; Xu, Jiyao; Wu, Kun; Yuan, Wei |
| 刊名 | JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
 |
| 出版日期 | 2018 |
| 卷号 | 123期号:2页码:1593-1602 |
| ISSN号 | 2169-9380 |
| 英文摘要 | 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. |
| 语种 | 英语 |
| 资助机构 | German Research Foundation (DFG) [1788] ; National Natural Science Foundation of China [41674152, 41331069] ; Chinese Meridian Project |
| 源URL | [http://ir.nssc.ac.cn/handle/122/6246]  |
| 专题 | 国家空间科学中心_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. |
入库方式： OAI收割
来源：国家空间科学中心
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