The solar wind control of the magnetopause shape: A comparison of a model magnetopause and empirical models

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题名:	The solar wind control of the magnetopause shape: A comparison of a model magnetopause and empirical models
作者:	Cheng,CC
贡献者:	太空科學研究所
关键词:	MAGNETOSPHERE;SIZE
日期:	1998
上传时间:	2010-06-29 18:39:06 (UTC+8)
出版者:	中央大學
摘要:	The solar wind control of the magnetopause shape is studied with a model magnetopause that results from three sources of magnetic field. One source is the geomagnetic field produced by the Earth's dipole, Another results from an image dipole placed in front of the magnetopause to produce the effect of the magnetopause current which limits the spatial extent of the geomagnetic field. The third is a southward interplanetary magnetic field (IMF) in the Earth's vicinity. With an image dipole strength and the location to account for the effect of the solar wind dynamic pressure (D-p), the shape oPthe model magnetupause can be regarded as controlled by D-p and the southward IMF, As an image dipole strength is about fourteen times the Earth's dipole and the location is at thirty times the Earth's radius, the shape of the model magnetopause is consistent with observational results for a southward IME, A comparison of the shape of the model magnetopause and an empirical model by Shue et al, (1997) shows that the image dipole strength at a fixed location correlates linearly with D-p for a southward IMF, In addition, they agree qualitatively For high D-p and a southward IMF.
關聯:	TERRESTRIAL ATMOSPHERIC AND OCEANIC SCIENCES
显示于类别:	[太空科學研究所 ] 期刊論文

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