IGGCAS OpenIR  > 地球与行星物理院重点实验室
The North-South Asymmetry of Martian Ionosphere and Thermosphere
Le, Huijun1,2,3,4; Liu, Libo1,2,3,4; Chen, Yiding1,2,4,5; Zhang, Hui1,2,3,4
2022-06-01
Source PublicationJOURNAL OF GEOPHYSICAL RESEARCH-PLANETS
ISSN2169-9097
Volume127Issue:6Pages:14
AbstractBased 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.
KeywordMars ionosphere seasonal variations hemispheric asymmetry Maven observation
DOI10.1029/2021JE007143
Funding OrganizationB-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
WOS KeywordMARS ; ATMOSPHERE ; CIRCULATION
Language英语
Funding ProjectB-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]
Funding OrganizationB-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
WOS Research AreaGeochemistry & Geophysics
WOS SubjectGeochemistry & Geophysics
WOS IDWOS:000804003800001
PublisherAMER GEOPHYSICAL UNION
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/106022
Collection地球与行星物理院重点实验室
Corresponding AuthorLe, Huijun
Affiliation1.Chinese Acad Sci, Key Lab Earth & Planetary Phys, Inst Geol & Geophys, Beijing, Peoples R China
2.Chinese Acad Sci, Inst Earth Sci, Beijing, Peoples R China
3.Chinese Acad Sci, Inst Geol & Geophys, Mohe Natl Geophys Observ, Beijing, Peoples R China
4.Univ Chinese Acad Sci, Coll Earth & Planetary Sci, Beijing, Peoples R China
5.Chinese Acad Sci, Inst Geol & Geophys, Beijing Natl Observ Space Environm, Beijing, Peoples R China
First Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Corresponding Author AffilicationInstitute of Geology and Geophysics, Chinese Academy of Sciences
Recommended Citation
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.
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