Middle-Latitudinal Band Structure Observed in the Nighttime Ionosphere

doi:10.1029/2018JA026059

CORC > 地质与地球物理研究所 > 中国科学院地质与地球物理研究所 > 中国科学院地球与行星物理重点实验室

	Middle-Latitudinal Band Structure Observed in the Nighttime Ionosphere
	Zhong, Jiahao 1; Lei, Jiuhou 1,2; Yue, Xinan 3,4; Luan, Xiaoli 1; Dou, Xiankang 1
刊名	JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS
	2019-07-01
卷号	124 期号:7 页码:5857-5873
关键词	nighttime ionosphere middle latitude band structure topside ionosphere plasmasphere
DOI	10.1029/2018JA026059
英文摘要	In this study, the Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) electron densities (Ne) from 200 to 800 km during 2006-2017 are used to investigate the middle-latitudinal band structure of the nighttime ionosphere. The main results are as follows. (1) In the nighttime, the Ne at about +/- 40 degrees geomagnetic latitudes is generally greater, especially in the topside ionosphere. (2) Double bands of relatively high Ne are seen at all longitudes during the equinoxes, while only one latitudinal band is clearly visible at specific longitudes in the winter hemisphere during the solstices. (3) The middle-latitudinal band structure of the topside ionosphere is more pronounced at later local times (LTs) at night and under lower solar activity. (4) The middle-latitudinal band structure mainly occurs at 23-05 LT. (5) The seasonal/longitudinal variations of the middle-latitudinal band structure are consistent with those of the plasmaspheric total electron content at low latitudes and upward field-aligned winds at middle latitudes. (6) At the middle-latitudinal bands, the downward plasma diffusion from the plasmasphere provides stable plasma source to the topside ionosphere, while the upward plasma motion due to the neutral winds is the primary source for the F-2 peak region. (7) The plasma sources for the middle-latitudinal band structures at different altitude regions are probably different, so that the resulting measurements might be due to a coalescing of these two completely different mechanisms. (8) The modulated recombination rates due to the thermospheric dynamics could also reinforce this structure.
资助项目	National Natural Science Foundation of China[41804150] ; National Natural Science Foundation of China[41831070] ; National Natural Science Foundation of China[41674154] ; National Natural Science Foundation of China[41874184] ; National Natural Science Foundation of China[41325017] ; Fundamental Research Funds for the Central Universities ; China Postdoctoral Science Foundation[2019T120541] ; China Postdoctoral Science Foundation[2017M622008] ; Open Research Project of Large Research Infrastructures of CAS
WOS关键词	ELECTRON-CONTENT ; ENHANCEMENTS ; MORPHOLOGY ; FIELDS ; MODEL
WOS研究方向	Astronomy & Astrophysics
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000482985600057
资助机构	National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Open Research Project of Large Research Infrastructures of CAS ; Open Research Project of Large Research Infrastructures of CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Open Research Project of Large Research Infrastructures of CAS ; Open Research Project of Large Research Infrastructures of CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Open Research Project of Large Research Infrastructures of CAS ; Open Research Project of Large Research Infrastructures of CAS ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities ; Fundamental Research Funds for the Central Universities ; China Postdoctoral Science Foundation ; China Postdoctoral Science Foundation ; Open Research Project of Large Research Infrastructures of CAS ; Open Research Project of Large Research Infrastructures of CAS
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/93598]
专题	地质与地球物理研究所_中国科学院地球与行星物理重点实验室
通讯作者	Lei, Jiuhou
作者单位	1.Univ Sci & Technol China, Sch Earth & Space Sci, CAS Key Lab Geospace Environm, Hefei, Anhui, Peoples R China 2.CAS Ctr Excellence Comparat Planetol, Hefei, Anhui, Peoples R China 3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing, Peoples R China 4.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Zhong, Jiahao,Lei, Jiuhou,Yue, Xinan,et al. Middle-Latitudinal Band Structure Observed in the Nighttime Ionosphere[J]. JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,2019,124(7):5857-5873.
APA	Zhong, Jiahao,Lei, Jiuhou,Yue, Xinan,Luan, Xiaoli,&Dou, Xiankang.(2019).Middle-Latitudinal Band Structure Observed in the Nighttime Ionosphere.JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS,124(7),5857-5873.
MLA	Zhong, Jiahao,et al."Middle-Latitudinal Band Structure Observed in the Nighttime Ionosphere".JOURNAL OF GEOPHYSICAL RESEARCH-SPACE PHYSICS 124.7(2019):5857-5873.