Model of the evolution of the plasmasphere during a geomagnetic storm

	Model of the evolution of the plasmasphere during a geomagnetic storm
	Li, L.; Xu RL(徐荣栏)
	2005
会议名称	2nd World Space Congress/34th COSPAR Scientific Assembly
会议日期	2005
会议地点	Houston, Tx
关键词	plasmasphere plasma convection
页码	1895-1899
英文摘要	The morphology of the plasmasphere during a geomagnetic storm is simulated by considering the two dimensional Ex B drift motion of plasmaspheric charged particles in the equatorial plane. assuming a time-independent dipolar magnetic field and a corotation electric field plus, a spatially uniform dawn-dusk convection electric field varying with K-p index, the spatial distributions of charged particles at different time during a geomagnetic storm are obtained. Our results show that if K-p increases with time, some particles inside the original plasmapause will convect into the magnetopause, forming a long tail that stretches from the plasmasphere to the magnetopause in the afternoon region. The particle convection weakens as K-p decreases, and as K-p returns to its not-mal value, the plasmasphere develops a thin tail that wraps around the Earth.
收录类别	CPCI
会议录	Solar wind-magnetosphere-ionosphere dynamics and radiation models
会议录出版者	Elsevier Science Ltd
会议录出版地	OXFORD
学科主题	空间物理
语种	英语
ISBN号	0273-1177
内容类型	会议论文
源URL	[http://ir.cssar.ac.cn/handle/122/950]
专题	国家空间科学中心_空间科学部
推荐引用方式 GB/T 7714	Li, L.,Xu RL. Model of the evolution of the plasmasphere during a geomagnetic storm[C]. 见:2nd World Space Congress/34th COSPAR Scientific Assembly. Houston, Tx. 2005.