The electric field model of the earth's magnetotail

被引：0
|
作者：
Zhang, TH [1 ]
Xu, RL [1 ]
Li, L [1 ]
机构：
[1] Ctr Space Sci & Appl Res, Beijing 100080, Peoples R China
来源：
CHINESE ASTRONOMY AND ASTROPHYSICS | 2003年 / 27卷 / 01期
关键词：
polar region electric field; magnetotail electric field;
D O I：
10.1016/S0275-1062(03)80012-7
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
The electric field in the Earth's magnetosphere is the main driving force of plasma motion there. The magnetospheric electric field is now generally taken to be a uniform dawn-dusk field or a projected field. In this work it is assumed that magnetic field lines are the equipotential lines of electric field, and that the electric field of the terrestrial ionosphere is taken to be the magnetospheric electric field projected along magnetic field lines. By using Tsyganenko's magnetic field model (T89), the ionospheric electric field is projected to the magnetotail, so obtaining a new model of magnetospheric electric field. In this paper a comparison between the bipolar magnetic field and the projection of the T89 model is made. A break of the restriction to bipolar magnetic fields has been achieved, which has a large range of application for the magnetosphere.
引用
收藏
页码：99 / 106
页数：8
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