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2001年1月26日高纬磁层顶通量管事件的观测研究--空间电流密度计算及分析
Alternative TitleMULTIPLE FLUX ROPE EVENTS AT THE HIGH2LATITUDE MAGNETOPAUSEON JANUARY 26,2001:CURRENT DENSITY CALCULATING
肖池阶; 濮祖荫; 黄宗英; 傅绥燕; 谢伦; 宗秋刚; Tfritz; K-Hglassmeier; 刘振兴; 曹晋滨; 史建魁; 沈超; 路立; 王迺权; 陈涛; 北京8701信箱
Department空间天气学国家重点实验室
Source Publication地球物理学报
2007
Volume47Issue:4Pages:555-561
ISSN0001-5733
Language中文
Keyword电流密度 通量管 磁层顶 最小方差分析法
Abstract讨论了三种根据ClusterⅡ四颗卫星的磁场测量数据计算空间电流的方法及其误差,论证了这几种方法的内在一致性,并得到了完全相同的计算结果.进而依据ClusterⅡ磁场探测资料,计算了2001年1月26日多重磁通量管和FTE事件中高纬磁层顶边界层和磁鞘区的电流密度.结果表明,磁通量管内电流密度较大,可达到约10^-8A/m^2;计算精度较高,结果可靠.本文还应用最小方差分析法(MVA),发现电流方向与通量管的轴向基本一致;论证了电流MVA分析在研究通量管性质时的作用,同时提出了电流管的概念.
Other AbstractA systematic comparison is carried out for three Methods of current density calculating based on simultaneous magnetic field measurements of four-spacecraft Cluster mission.Analytically and numerically demonstrated that within the linear approximation,all these methods lead to the exactly the same results.As a case study,the current density of multiple flux rope events at the high-latitude magnetopause on January 26,2001 is investigated.It is showed that an intense current flows inside the ropes with the current density reaching as high as about 10- 8APm2.The current inside rope is valuable for the small relative calculating error.It is also found that the directory of current is almost parallel the axis of flux rope gotten by magnetic minimum variance analysis (MVA).It is supposed the current MVA method is useful and simply for the rope axis orientation.
Indexed ByCSCD
Funding Project中国科学院空间科学与应用研究中心
Citation statistics
Cited Times:8[CSCD]   [CSCD Record]
Document Type期刊论文
Identifierhttp://ir.nssc.ac.cn/handle/122/1300
Collection空间科学部
Corresponding Author北京8701信箱
Recommended Citation
GB/T 7714
肖池阶,濮祖荫,黄宗英,等. 2001年1月26日高纬磁层顶通量管事件的观测研究--空间电流密度计算及分析[J]. 地球物理学报,2007,47(4):555-561.
APA 肖池阶.,濮祖荫.,黄宗英.,傅绥燕.,谢伦.,...&北京8701信箱.(2007).2001年1月26日高纬磁层顶通量管事件的观测研究--空间电流密度计算及分析.地球物理学报,47(4),555-561.
MLA 肖池阶,et al."2001年1月26日高纬磁层顶通量管事件的观测研究--空间电流密度计算及分析".地球物理学报 47.4(2007):555-561.
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