Near-Earth substorm features from multiple satellite observations
文献类型:期刊论文
作者 | Lui, A. T. Y. ; Volwerk, M. ; Dunlop, M. W. ; Alexeev, I. V. ; Fazakerley, A. N. ; Walsh, A. P. ; Lester, M. ; Grocott, A. ; Mouikis, C. ; Henderson, M. G. ; Kistler, L. M. ; Shen, C. ; Shi, J. K. ; Zhang, T. L. ; Reme, H. |
刊名 | Journal of Geophysical Research-Space Physics
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出版日期 | 2008 |
卷号 | 113期号:A7页码:A07S26 |
关键词 | tail current disruption field line resonances plasma sheet dynamics geotail satellite current wedge expansion cluster event onset magnetotail |
ISSN号 | 0148-0227 |
通讯作者 | 北京8701信箱 |
英文摘要 | We investigate a substorm on 3 October 2004 during which 11 satellites were located in near-Earth magnetotail (X-GSM > -10 R-E). Double Star 1 (TC-1), Cluster, and LANL-97 satellites were closely aligned in the dawn-dusk direction (<1 R-E apart) for this conjunction. After substorm expansion onset, TC-1 observed plasma sheet thinning at X approximate to -5.5 RE and later detected signature of plasma flow shear that may be associated with an auroral arc. Analysis of the dawn-dusk magnetic perturbations from GOES-10 and Polar suggests that these could be caused by a substorm current system consisting of not only the azimuthal closure of field-aligned currents (the substorm current wedge) but also the meridional closure of field-aligned currents. The temporal sequence of substorm activity (particle injection, current disruption, and dipolarization) revealed by these satellites indicates that the substorm expansion activity was initiated close to the Earth and spread later to further downstream distances. Furthermore, TC-1 and Cluster data show that there is no close relationship between some dipolarizations and Earthward plasma flows in the near-Earth region. The overall development of substorm activity is in agreement with the near-Earth initiation model for substorms. A temporal evolution of the magnetic field reconfiguration and plasma boundary motion during this substorm is constructed from these observations. |
学科主题 | 空间物理 |
收录类别 | SCI |
原文出处 | http://www.agu.org/pubs/crossref/2008/2007JA012738.shtml |
语种 | 英语 |
源URL | [http://ir.cssar.ac.cn/handle/122/1093] ![]() |
专题 | 国家空间科学中心_空间科学部 |
推荐引用方式 GB/T 7714 | Lui, A. T. Y.,Volwerk, M.,Dunlop, M. W.,et al. Near-Earth substorm features from multiple satellite observations[J]. Journal of Geophysical Research-Space Physics,2008,113(A7):A07S26. |
APA | Lui, A. T. Y..,Volwerk, M..,Dunlop, M. W..,Alexeev, I. V..,Fazakerley, A. N..,...&Reme, H..(2008).Near-Earth substorm features from multiple satellite observations.Journal of Geophysical Research-Space Physics,113(A7),A07S26. |
MLA | Lui, A. T. Y.,et al."Near-Earth substorm features from multiple satellite observations".Journal of Geophysical Research-Space Physics 113.A7(2008):A07S26. |
入库方式: OAI收割
来源:国家空间科学中心
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