Cluster observations of large-scale southward movement and dawnward-duskward flapping of Earth’s magnetotail current sheet

	Cluster observations of large-scale southward movement and dawnward-duskward flapping of Earth’s magnetotail current sheet
	AiYing Duan ; JinBin Cao ; YuDuan Ma ; XinHua Wei
刊名	Science China Technological Sciences
	2013
卷号	56 期号:1 页码:194-204
关键词	flattened current sheet tilted current sheet flapping motion BBFs
ISSN号	1674-7321
通讯作者	北京8701信箱
中文摘要	In August 2001, Cluster satellites observed that the mid-tail current sheet (CS) moved southward continuously for almost seven hours. Meanwhile, Cluster crossed back and forth the CS repeatedly. This means that the large-scale southward movement of the CS was accompanied by a small-scale CS flapping during this period. Using the minimum-variation-analysis (MVA) method and the multi-spacecraft data, we calculated the normal vector, current density and the magnetic curvature of the CS, the results showed that the CS alternated between flattened CS and tilted CS for several times. Strong dawn-dusk oscillations were found for the tilted CS, which caused the repeated crossings of the center of CS by the satellites. This feature is obviously different from the previous observations of the vertical flapping of the CS induced by the kink instability. Two types of flapping were observed: One of them is accompanied with bursty bulk flows (BBFs) and the other is not. This suggests that in this event there was no direct relationship between the CS flapping and BBFs.
学科主题	空间物理
语种	英语
内容类型	期刊论文
源URL	[http://ir.cssar.ac.cn/handle/122/1510]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	AiYing Duan,JinBin Cao,YuDuan Ma,et al. Cluster observations of large-scale southward movement and dawnward-duskward flapping of Earth’s magnetotail current sheet[J]. Science China Technological Sciences,2013,56(1):194-204.
APA	AiYing Duan,JinBin Cao,YuDuan Ma,&XinHua Wei.(2013).Cluster observations of large-scale southward movement and dawnward-duskward flapping of Earth’s magnetotail current sheet.Science China Technological Sciences,56(1),194-204.
MLA	AiYing Duan,et al."Cluster observations of large-scale southward movement and dawnward-duskward flapping of Earth’s magnetotail current sheet".Science China Technological Sciences 56.1(2013):194-204.