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  4. 中国科学院地球与行星物理重点实验室
The North-South Asymmetry of Martian Ionosphere and Thermosphere

文献类型：期刊论文

作者Le, Huijun1,3,4,5; Liu, Libo1,3,4,5; Chen, Yiding1,2,3,5; Zhang, Hui1,3,4,5
刊名JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
出版日期2022-06-01
卷号127期号:6页码:14
ISSN号2169-9097
关键词Mars ionosphere seasonal variations hemispheric asymmetry Maven observation
DOI10.1029/2021JE007143
英文摘要Based on Mars Atmospheric and Volatile EvolutioN's neutral composition and Langmuir probe electron density and temperature data, we statistically analyzed the climatic variations of the Martian thermosphere and ionosphere and found significant north-south asymmetry. In winter and summer, the asymmetry mainly originates from the north-south asymmetry of the solar zenith angle. However, the observed data still exhibit significant north-south asymmetry in equinox seasons. Under low solar extreme ultraviolet radiation, the thermospheric neutral density in the northern hemisphere is higher than that in the southern hemisphere. As solar radiation increases, the neutral density in the southern hemisphere gradually exceeds that in the northern hemisphere. In addition, the southern hemisphere density increases nonlinearly with the increase of solar radiation, whereas the northern hemisphere density increases linearly. The electron density and electron temperature in the Martian ionosphere also exhibit similar north-south asymmetry. The asymmetries in the ionosphere and thermosphere between the northern and southern hemispheres are likely related to significant differences in Mars' north-south topography or to north-south asymmetries in the residual magnetic field. After preliminary analysis, we found that the north-south asymmetry of Mars' remaining magnetic field would intensify the hemispheric asymmetry of the ionospheric electron density, but have no effect on the thermospheric neutral density. The hemispheric asymmetry may be primarily related to the significant difference in Mars' north-south topography.
WOS关键词MARS ; ATMOSPHERE ; CIRCULATION
资助项目B-type Strategic Priority Program of the Chinese Academy of Sciences[XDB41000000] ; National Natural Science Foundation of China[41822403] ; National Natural Science Foundation of China[41774165] ; Youth Innovation Promotion Association CAS ; Key Research Program of the Institute of Geology Geophysics CAS[IGGCAS-201904] ; Key Research Program of the Institute of Geology Geophysics CAS[IGGCAS-202102] ; Chinese Academy of Sciences[ZDBS-SSW-TLC00103]
WOS研究方向Geochemistry & Geophysics
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000804003800001
资助机构B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; B-type Strategic Priority Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Youth Innovation Promotion Association CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Key Research Program of the Institute of Geology Geophysics CAS ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences ; Chinese Academy of Sciences
源URL[http://ir.iggcas.ac.cn/handle/132A11/106022]  
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Le, Huijun
作者单位1.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China
3.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
4.Chinese Acad Sci, Inst Geol & Geophys, Mohe Natl Geophys Observ, Beijing, Peoples R China
5.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Inst Geol & Geophys, Beijing, Peoples R China
推荐引用方式
GB/T 7714		 Le, Huijun,Liu, Libo,Chen, Yiding,et al. The North-South Asymmetry of Martian Ionosphere and Thermosphere[J]. JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,2022,127(6):14.
APA Le, Huijun,Liu, Libo,Chen, Yiding,&Zhang, Hui.(2022).The North-South Asymmetry of Martian Ionosphere and Thermosphere.JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS,127(6),14.
MLA Le, Huijun,et al."The North-South Asymmetry of Martian Ionosphere and Thermosphere".JOURNAL OF GEOPHYSICAL RESEARCH-PLANETS 127.6(2022):14.

入库方式： OAI收割

来源：地质与地球物理研究所

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