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Response of Martian ionospheric electron density to changes in solar radiation

文献类型：期刊论文

作者Zhang TongTong1,2,3; Liu LiBo1,2,3; Chen YiDing1,2,3; Le HuiJun1,2,3; Zhang RuiLong1,2,3; Zhang Hui1,2,3
刊名CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION
出版日期2022-05-01
卷号65期号:5页码:1571-1580
关键词Martian ionosphere Bottomside ionosphere Topside ionosphere TEC Solar radiation
ISSN号0001-5733
DOI10.6038/cjg2022P0829
英文摘要Changes in solar radiation is one of the main drivers in modulating variations of the Martian ionosphere. In this investigation, we report the response of the Martian ionospheric electron density to changes in solar radiation as revealed from the electron density profiles from radio occultation observations by Mars Global Surveyor (MGS) and an empirical model of the total electron content (TEC) of Martian ionosphere. After considering the solar zenith angle dependence of the ionospheric electron density, with increasing solar radiation, the peak density of the M-2 layer in the Martian ionosphere tends to increase but with a decreased rate, while the peak height and neutral scale height of the M-2 layer do not show a significant change. The TEC of the occultation electron density profiles and the bottomside and topside TEC in the 100 similar to 200 km altitude range also increase with solar radiation, but all with a slower rate, indicating that there may be a saturation feature in the Martian ionosphere, similar to the earth' s ionosphere. The ratios of bottomside and topside TEC to the TEC from the empirical model are inversely correlated with changes of solar radiation. This inverse relationship tells that with increasing solar radiation, electron densities at altitudes above 200 km account for a greater proportion of TEC. This fact means that the control of dynamic processes in the topside Martian ionosphere gradually exceeds that of the photochemical process with increasing solar activity.
WOS关键词DAYSIDE IONOSPHERE ; MARS ; MODEL ; TOPSIDE ; VARIABILITY ; MAVEN ; FLUX
WOS研究方向Geochemistry & Geophysics
语种英语
WOS记录号WOS:000796746600003
出版者SCIENCE PRESS
源URL[http://ir.iggcas.ac.cn/handle/132A11/105937]  
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Liu LiBo
作者单位1.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing 100049, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Heilongjiang Mohe Observ Geophys, Beijing 100029, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Earth & Planetary Phys, Beijing 100029, Peoples R China
推荐引用方式
GB/T 7714		 Zhang TongTong,Liu LiBo,Chen YiDing,et al. Response of Martian ionospheric electron density to changes in solar radiation[J]. CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,2022,65(5):1571-1580.
APA Zhang TongTong,Liu LiBo,Chen YiDing,Le HuiJun,Zhang RuiLong,&Zhang Hui.(2022).Response of Martian ionospheric electron density to changes in solar radiation.CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION,65(5),1571-1580.
MLA Zhang TongTong,et al."Response of Martian ionospheric electron density to changes in solar radiation".CHINESE JOURNAL OF GEOPHYSICS-CHINESE EDITION 65.5(2022):1571-1580.

入库方式： OAI收割

来源：地质与地球物理研究所

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