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Inter-hemispheric asymmetry of dependence of the cusp location on dipole tilt during northward IMF conditions
Shi, J.; Guo, J.; Dunlop, M.; Zhang, T.; Liu, Z.; Lucek, E.; Fazakerley, A.; Reme, H.; Dandouras, I.; Shi, J (reprint author), Chinese Acad Sci, State Key Lab Space Weather, CSSAR, Beijing, Peoples R China.
Department空间科学部
Source PublicationANNALES GEOPHYSICAE
2012
Volume30Issue:1Pages:21-26
ISSN0992-7689
Language英语
KeywordIonosphere Polar Ionosphere
AbstractA data set of the Cluster cusp crossings over a 5-year period is studied for the interhemispheric comparison of the dipole tilt angle effect on the latitude of the mid-altitude cusp. The result shows that the dipole tilt angle has a clear control of the cusp latitudinal location. Although, the northern cusp moves 0.054 degrees ILAT for every 1 degrees increase in the dipole tilt angle at the mean altitude of 5.2R(E), the southern cusp moves 0.051 degrees ILAT for every 1 degrees increase in the dipole tilt angle at the mean altitude of 6.6R(E). The northern cusp dependence agrees with the trend formed by other observations of different satellites for different altitudes, whereas the southern cusp does not. We therefore suggest that there is an inter-hemispheric difference in the dipole tilt angle dependence of cusp, latitudinal location, which has an impact on other observations of different satellites in different altitudes.; A data set of the Cluster cusp crossings over a 5-year period is studied for the interhemispheric comparison of the dipole tilt angle effect on the latitude of the mid-altitude cusp. The result shows that the dipole tilt angle has a clear control of the cusp latitudinal location. Although, the northern cusp moves 0.054 degrees ILAT for every 1 degrees increase in the dipole tilt angle at the mean altitude of 5.2R(E), the southern cusp moves 0.051 degrees ILAT for every 1 degrees increase in the dipole tilt angle at the mean altitude of 6.6R(E). The northern cusp dependence agrees with the trend formed by other observations of different satellites for different altitudes, whereas the southern cusp does not. We therefore suggest that there is an inter-hemispheric difference in the dipole tilt angle dependence of cusp, latitudinal location, which has an impact on other observations of different satellites in different altitudes.
Indexed BySCI ; EI
Funding Project中国科学院空间科学与应用研究中心
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/3165
Collection空间科学部
Corresponding AuthorShi, J (reprint author), Chinese Acad Sci, State Key Lab Space Weather, CSSAR, Beijing, Peoples R China.
Recommended Citation
GB/T 7714
Shi, J.,Guo, J.,Dunlop, M.,et al. Inter-hemispheric asymmetry of dependence of the cusp location on dipole tilt during northward IMF conditions[J]. ANNALES GEOPHYSICAE,2012,30(1):21-26.
APA Shi, J..,Guo, J..,Dunlop, M..,Zhang, T..,Liu, Z..,...&Shi, J .(2012).Inter-hemispheric asymmetry of dependence of the cusp location on dipole tilt during northward IMF conditions.ANNALES GEOPHYSICAE,30(1),21-26.
MLA Shi, J.,et al."Inter-hemispheric asymmetry of dependence of the cusp location on dipole tilt during northward IMF conditions".ANNALES GEOPHYSICAE 30.1(2012):21-26.
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