Coordinated Cluster/Double Star observations of dayside reconnection   signatures

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	Coordinated Cluster/Double Star observations of dayside reconnection signatures
	Dunlop, MW ; Taylor, MGGT ; Davies, JA ; Owen, CJ ; Pitout, F ; Fazakerley, AN ; Pu, Z ; Laakso, H ; Bogdanova, YV ; Zong, QG ; Shen, C ; Nykyri, K ; Lavraud, B ; Milan, SE ; Phan, TD ; Reme, H ; Escoubet, CP ; Carr, CM ; Cargill, P ; Lockwood, M ; Sonnerup, B
刊名	annales geophysicae
	2005
关键词	space plasma physics magnetic reconnection magnetospheric physics maonetopause, cusp, and boundary layers radioscience instruments and techniques FLUX-TRANSFER EVENTS MAGNETIC-FIELD HIGH-LATITUDE PLASMA ELECTRON MAGNETOPAUSE INTERPLANETARY EXPLORER MISSION MOTION PEACE
英文摘要	The recent launch of the equatorial spacecraft of the Double Star mission, TC-1, has provided an unprecedented opportunity to monitor the southern hemisphere dayside magnetopause boundary layer in conjunction with northern hemisphere observations by the quartet of Cluster spacecraft. We present first results of one such situation where, on 6 April 2004, both Cluster and the Double Star TC-1 spacecraft were on outbound transits through the dawnside magnetosphere. The observations are consistent with ongoing reconnection on the dayside magnetopause, resulting in a series of flux transfer events (FTEs) seen both at Cluster and TC-1, which appear to lie north and south of the reconnection line, respectively. In fact, the observed polarity and motion of each FTE signature advocates the existence of an active reconnection region consistently located between the positions of Cluster and TC-1, with Cluster observing northward moving FTEs with +/- polarity, whereas TC-1 sees -/+ polarity FTEs. Ibis assertion is further supported by the application of a model designed to track flux tube motion for the prevailing interplanetary conditions. The results from this model show, in addition, that the low-latitude FTE dynamics are sensitive to changes in convected upstream conditions. In particular, changing the interplanetary magnetic field (IMF) clock angle in the model suggests that TC-1 should miss the resulting FTEs more often than Cluster and this is borne out by the observations.; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; SCI(E); 36; ARTICLE; 8; 2867-2875; 23
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/399983]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Dunlop, MW,Taylor, MGGT,Davies, JA,et al. Coordinated Cluster/Double Star observations of dayside reconnection signatures[J]. annales geophysicae,2005.
APA	Dunlop, MW.,Taylor, MGGT.,Davies, JA.,Owen, CJ.,Pitout, F.,...&Sonnerup, B.(2005).Coordinated Cluster/Double Star observations of dayside reconnection signatures.annales geophysicae.
MLA	Dunlop, MW,et al."Coordinated Cluster/Double Star observations of dayside reconnection signatures".annales geophysicae (2005).