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.
刊名	GEOPHYSICAL RESEARCH LETTERS
	2007-02-03
卷号	34 期号:3
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.
收录类别	SCI
语种	英语
WOS记录号	WOS:000244041200005
内容类型	期刊论文
源URL	[http://ir.bao.ac.cn/handle/114a11/7194]
专题	国家天文台_太阳物理研究部
作者单位	1.Peking Univ, Sch Earth & Space Sci, Beijing 100871, Peoples R China 2.Chinese Acad Sci, Ctr Space Sci & Appl Res, Beijing 100080, Peoples R China 3.Zhejiang Univ, Dept Phys, Hangzhou 310027, Peoples R China 4.Rutherford Appleton Lab, Div Space Sci, Didcot OX11 0QX, Oxon, England 5.Austrian Acad Sci, Space Res Inst, A-8042 Graz, Austria 6.Chinese Acad Sci, Natl Astron Observ, Beijing 100012, Peoples R China 7.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 8.Univ Massachusetts, Ctr Atmospher Res, Lowell, MA 01854 USA 9.Peking Univ, Sch Phys, Beijing 100871, Peoples R China 10.Univ London Imperial Coll Sci Technol & Med, Blackett Lab, London SW7 2BZ, England
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).
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).
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).