TC-1 observations of flux pileup and dipolarization-associated expansion in the near-Earth magnetotail during substorms

	TC-1 observations of flux pileup and dipolarization-associated expansion in the near-Earth magnetotail during substorms
	Zhang, H. ; Pu, Z. Y. ; Cao, X. ; Fu, S. Y. ; Liu, Z. X. ; Ma, Z. W. ; Dunlop, M. W. ; Baumjohann, W. ; Xiao, C. J. ; Hong, M. H. ; Cao, J. B. ; Zong, Q. G. ; Wang, X. G. ; Carr, C. ; Reme, H. A. ; Dandouras, I. ; Fazakerley, A. ; Frey, H. U. ; Escoubet, C. P.
刊名	Geophysical Research Letters
	2007
卷号	34 期号:3 页码:L03104
关键词	current wedge current disruption onset instrument braking model flow
ISSN号	0094-8276
通讯作者	北京8701信箱
英文摘要	Fifty-three substorms measured by Double Star/TC-1 in the near-Earth magnetotail from July to October, 2004 are studied. The main features of these events are: ( a) Magnetic flux pileup characterized by continuous enhancement of B-z is observed, which starts almost simultaneously with aurora breakup within 1 - 3 minutes, indicating that substorm onset is in close relation to flux pileup. ( b) Sudden plasma sheet expansion with sharp increases in ion temperature and density is seen in all events, which occurs typically similar to 11 minutes after the beginning of pileup. The plasma sheet expansion is shown to be in close relation with the primary substorm dipolarization and, hence, can be referred to as 'dipolarization-associated expansion'. ( c) Evidence indicates that the substorm current wedge first forms earthward of TC-1 position and, hence, inward of the flow braking region, and then propagates tailward with an expansion in the Z-direction. Possible implications of these observations are briefly discussed.
学科主题	空间物理
收录类别	SCI
原文出处	http://www.agu.org/pubs/crossref/2007/2006GL028326.shtml
语种	英语
内容类型	期刊论文
源URL	[http://ir.cssar.ac.cn/handle/122/1088]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Zhang, H.,Pu, Z. Y.,Cao, X.,et al. TC-1 observations of flux pileup and dipolarization-associated expansion in the near-Earth magnetotail during substorms[J]. Geophysical Research Letters,2007,34(3):L03104.
APA	Zhang, H..,Pu, Z. Y..,Cao, X..,Fu, S. Y..,Liu, Z. X..,...&Escoubet, C. P..(2007).TC-1 observations of flux pileup and dipolarization-associated expansion in the near-Earth magnetotail during substorms.Geophysical Research Letters,34(3),L03104.
MLA	Zhang, H.,et al."TC-1 observations of flux pileup and dipolarization-associated expansion in the near-Earth magnetotail during substorms".Geophysical Research Letters 34.3(2007):L03104.