Global magnetospheric response to an interplanetary shock: THEMIS   observations

doi:10.5194/angeo-30-379-2012

CORC > 北京大学 > 地球与空间科学学院

	Global magnetospheric response to an interplanetary shock: THEMIS observations
	Zhang, H. ; Sibeck, D. G. ; Zong, Q.G. ; McFadden, J. P. ; Larson, D. ; Glassmeier, K.H. ; Angelopoulos, V.
刊名	annales geophysicae
	2012
关键词	Interplanetary physics Interplanetary shocks Magnetospheric physics Magnetospheric configuration and dynamics Solar wind-magnetosphere interactions ION-CYCLOTRON WAVES BOW SHOCK PLASMASPHERIC PLUMES PARTICLE INTERACTIONS PLASMA INSTRUMENT OMEGA-HE MAGNETOPAUSE PULSATIONS GENERATION DENSITY
DOI	10.5194/angeo-30-379-2012
英文摘要	We investigate the global response of the geospace plasma environment to an interplanetary (IP) shock at similar to 02:24 UT on 28 May 2008 from multiple THEMIS spacecraft observations in the magnetosheath (THEMIS B and C), the mid-afternoon magnetosphere (THEMIS A), and the dusk magnetosphere (THEMIS D and E). The interaction of the transmitted IP shock with the magnetosphere has global effects. Consequently, it can affect geospace plasma significantly. After interacting with the bow shock, the IP shock transmitted a fast shock and a discontinuity which propagated through the magnetosheath toward the Earth at speeds of 301 km s(-1) and 137 km s(-1), respectively. THEMIS A observations indicate that the IP shock changed the properties of a plasmaspheric plume significantly. The plasmaspheric plume density increased rapidly from 10 to 100 cm(-3) in 4 min and the ion distribution changed from an isotropic to a strongly anisotropic distribution. Electromagnetic ion cyclotron (EMIC) waves observed by THEMIS A are most likely excited by the anisotropic ion distributions caused by the IP shock impact. THEMIS A, but not D or E, observed a plasmaspheric plume in the dayside magnetosphere. Multiple spacecraft observations indicate that the dawn-side edge of the plasmaspheric plume was located between THEMIS A and D (or E).; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000300876900009&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Astronomy & Astrophysics; Geosciences, Multidisciplinary; Meteorology & Atmospheric Sciences; SCI(E); 6; ARTICLE; 2; 379-387; 30
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/393968]
专题	地球与空间科学学院
推荐引用方式 GB/T 7714	Zhang, H.,Sibeck, D. G.,Zong, Q.G.,et al. Global magnetospheric response to an interplanetary shock: THEMIS observations[J]. annales geophysicae,2012.
APA	Zhang, H..,Sibeck, D. G..,Zong, Q.G..,McFadden, J. P..,Larson, D..,...&Angelopoulos, V..(2012).Global magnetospheric response to an interplanetary shock: THEMIS observations.annales geophysicae.
MLA	Zhang, H.,et al."Global magnetospheric response to an interplanetary shock: THEMIS observations".annales geophysicae (2012).