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

作     者：DUAN AiYing CAO JinBin MA YuDuan WEI XinHua 

作者机构：State Key Laboratory for Space WeatherCenter for Space Science and Applied Research Graduate UniversityChinese Academy of Sciences Space Science InstituteSchool of AstronauticsBeihang UniversityBeijing 100191China 

出 版 物：《Science China(Technological Sciences)》 (中国科学（技术科学英文版）)

年 卷 期：2013年第56卷第1期

页      面：194-204页

核心收录：

学科分类：0810[工学-信息与通信工程] 070802[理学-空间物理学] 07[理学] 0708[理学-地球物理学] 0805[工学-材料科学与工程（可授工学、理学学位）] 0702[理学-物理学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Natural Science Foundation of China (Grant Nos. NSFC40931054,41174141 and 41174144) the National Basic Research Program of China ("973" Project) (Grant No.2011CB811404) 

主　　题：卫星观测 电流片 南移 磁尾 集群 Cluster 地球 变化分析 

摘      要：In August 2001,Cluster satellites observed that the mid-tail current sheet(CS) moved southward continuously for almost seven ***,Cluster crossed back and forth the CS *** means that the large-scale southward movement of the CS was accompanied by a small-scale CS flapping during this *** 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 *** dawn-dusk oscillations were found for the tilted CS,which caused the repeated crossings of the center of CS by the *** feature is obviously different from the previous observations of the vertical flapping of the CS induced by the kink *** types of flapping were observed:One of them is accompanied with bursty bulk flows(BBFs) and the other is *** suggests that in this event there was no direct relationship between the CS flapping and BBFs.