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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; 北京8701信箱
Department空间天气学国家重点实验室
Source PublicationScience China Technological Sciences
2013
Volume56Issue:1Pages:194-204
ISSN1674-7321
Language英语
KeywordFlattened Current Sheet Tilted Current Sheet Flapping Motion Bbfs
Other AbstractIn 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.
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/122/1510
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
AiYing Duan,JinBin Cao,YuDuan Ma,等. 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,&北京8701信箱.(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.
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