Tail current sheet dynamics during substorm

被引：0
|
作者：
Alexeev, II [1 ]
Bobrovnikov, SY [1 ]
机构：
[1] Moscow MV Lomonosov State Univ, Inst Nucl Phys, Moscow 119899, Russia
来源：
PROBLEMS OF GEOSPACE | 1997年
关键词：
D O I：
暂无
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
A model of the tail current sheet is presented. This model describes the cross-tail current and closure currents on the magnetopause. The cross-tail current sheet with changing thickness is considered. The dependence of the B-z-component of the total magnetospheric field on the tail current strength is calculated. The IMF B-z-component during southward IMF interval causes thinning of the tail current sheet and an increase of the cross-tail current. As a consequence of this process, the B-z-component of the total magnetospheric field normal to the current sheet decreases, the equilibrium conditions are violated, and a substorm occurs.
引用
收藏
页码：67 / 74
页数：8
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