Small-scale field-aligned currents and plasma motion in auroral arcs

被引：0
|
作者：
Shibkov, SA [1 ]
Pudovkin, MI [1 ]
Kotikov, AL [1 ]
机构：
[1] St Petersburg State Univ, Inst Phys Res, St Petersburg 199164, Russia
来源：
GEOMAGNETISM AND AERONOMY | 2005年 / 45卷 / 04期
关键词：
D O I：
暂无
中图分类号：
P3 [地球物理学]; P59 [地球化学];
学科分类号：
0708 ; 070902 ;
摘要：
The motion of luminosity inhomogeneities in auroral arcs is investigated on the basis of television data. An original method for processing TV records is proposed for this purpose. Conclusions about the plasma motion character at the opposite edges of the auroral arc are made. The velocity of small-scale plasma formations along an arc is estimated based on TV data. A velocity of about 10 km/s is obtained. It is proposed to explain such a value by the fact that the small-scale electric field is stronger than the medium-scale field. This result agrees with those obtained by other independent methods of investigations.
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页码：410 / 416
页数：7
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