An investigation on the variations of dayside and nightside electron densities of the Martian ionosphere

doi:10.6038/cjg2018M0099

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

	An investigation on the variations of dayside and nightside electron densities of the Martian ionosphere
	Zhang XueXi 1; Lei JiuHou 1; Wan WeiXing 2; Zhong JiaHao 1
刊名	CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
	2018-08-01
卷号	61 期号:8 页码:3113-3123
关键词	Mars MAVEN Ionosphere Electron density Solar zenith angle Day-night
ISSN号	0001-5733
DOI	10.6038/cjg2018M0099
英文摘要	In this study, electron density data from Langmuir Probe and Waves (LPW) instrument onboard MAVEN are used to investigate the variations of the Martian ionosphere with Solar Zenith Angle (SZA) and the day-night difference of electron density. By analyzing electron density data during 2014-2017, we found that, the photochemical process is more important than the transport process below 200 km, and the day-night plasma transport can affect the electron density at SZA < 110 degrees. For the region above 200 km, the transport process can greatly affect the structure of the topside ionosphere, and the day-night difference of electron densities is much smaller than that below 200 km, and electron density decreases gradually with increasing SZA. In addition, we analyzed the electron density data during MAVEN's deep-dip campaigns. It was found that the strong geomagnetic fields in the southern hemisphere could affect the electron density at night. The closed geomagnetic lines might obstruct the electron precipitating process and cause a decrease in electron density as compared with surrounding regions. By comparing the electron density profiles during the deep-dip campaigns, it was found that the precipitation electrons probably affect the electron density below 160 km at night.
WOS关键词	MARS
WOS研究方向	Geochemistry & Geophysics
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000442058500001
内容类型	期刊论文
源URL	[http://ir.iggcas.ac.cn/handle/132A11/89196]
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, Hefei 230026, Anhui, Peoples R China 2.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China
推荐引用方式 GB/T 7714	Zhang XueXi,Lei JiuHou,Wan WeiXing,et al. An investigation on the variations of dayside and nightside electron densities of the Martian ionosphere[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2018,61(8):3113-3123.
APA	Zhang XueXi,Lei JiuHou,Wan WeiXing,&Zhong JiaHao.(2018).An investigation on the variations of dayside and nightside electron densities of the Martian ionosphere.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,61(8),3113-3123.
MLA	Zhang XueXi,et al."An investigation on the variations of dayside and nightside electron densities of the Martian ionosphere".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 61.8(2018):3113-3123.