NAOC Open IR
variabilityofthemartianionospherefromthemavenradiooccultationscienceexperiment
Yao Meijuan1; Cui Jun1; Wu Xiaoshu2; Huang Yingying1; Wang Wenrui1
2019
Source Publicationearthandplanetaryphysics
ISSN2096-3955
Volume3Issue:4Pages:283
AbstractThe Martian ionosphere is produced by a number of controlling processes, including solar extreme ultraviolet radiation (EUV) and X-ray ionization, impact ionization by precipitating electrons, and day-to-night transport. This study investigates the structural variability of the Martian ionosphere with the aid of the radio occultation (RO) experiments made on board the recent Mars Atmosphere and Volatile Evolution (MAVEN) spacecraft. On the dayside, the RO electron density profiles are described by the superposition of two Chapman models, representing the contributions from both the primary layer and the low-altitude secondary layer. The inferred subsolar peak electron densities and altitudes are 1.24×10~5 cm-3 and 127 km for the former, and 4.28×10~4 cm-3 and 97 km for the latter, respectively, in general agreement with previous results appropriate for the low solar activity conditions. Our results strengthen the role of solar EUV and X-ray ionization as the driving source of plasma on the dayside of Mars. Beyond the terminator, a systematic decline in ionospheric total electron content is revealed by the MAVEN RO measurements made from the terminator crossing up to a solar zenith angle of 120°. Such a trend is indicative of day-to-night plasma transport as an important source for the nightside Martian ionosphere.
Language英语
Document Type期刊论文
Identifierhttp://ir.bao.ac.cn/handle/114a11/46469
Collection中国科学院国家天文台
Affiliation1.中山大学
2.中国科学院国家天文台
Recommended Citation
GB/T 7714
Yao Meijuan,Cui Jun,Wu Xiaoshu,et al. variabilityofthemartianionospherefromthemavenradiooccultationscienceexperiment[J]. earthandplanetaryphysics,2019,3(4):283.
APA Yao Meijuan,Cui Jun,Wu Xiaoshu,Huang Yingying,&Wang Wenrui.(2019).variabilityofthemartianionospherefromthemavenradiooccultationscienceexperiment.earthandplanetaryphysics,3(4),283.
MLA Yao Meijuan,et al."variabilityofthemartianionospherefromthemavenradiooccultationscienceexperiment".earthandplanetaryphysics 3.4(2019):283.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Yao Meijuan]'s Articles
[Cui Jun]'s Articles
[Wu Xiaoshu]'s Articles
Baidu academic
Similar articles in Baidu academic
[Yao Meijuan]'s Articles
[Cui Jun]'s Articles
[Wu Xiaoshu]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Yao Meijuan]'s Articles
[Cui Jun]'s Articles
[Wu Xiaoshu]'s Articles
Terms of Use
No data!
Social Bookmark/Share
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.