Inter-hemispheric asymmetry of dependence of the cusp location on dipole tilt during northward IMF conditions

	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.
刊名	ANNALES GEOPHYSICAE
	2012
卷号	30 期号:1 页码:21-26
关键词	Ionosphere Polar ionosphere
ISSN号	0992-7689
通讯作者	Shi, J (reprint author), Chinese Acad Sci, State Key Lab Space Weather, CSSAR, Beijing, Peoples R China.
中文摘要	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.
英文摘要	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.
学科主题	空间物理
收录类别	SCI ; EI
资助信息	National Natural Science Foundation of China [41074114, 40921063, 41004076]; Specialized Research Fund for State Key Laboratories
语种	英语
公开日期	2014-12-15
内容类型	期刊论文
源URL	[http://ir.nssc.ac.cn/handle/122/3165]
专题	国家空间科学中心_空间科学部
推荐引用方式 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..,...&Dandouras, I..(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.