SOLAR-WIND CONTROLLED PULSATIONS AT LOW LATITUDES

被引：0
作者：
VELLANTE, M
VILLANTE, U
机构：
[1] Dipartimento di Fisica dell'Università, L'Aquila
来源：
NUOVO CIMENTO DELLA SOCIETA ITALIANA DI FISICA C-GEOPHYSICS AND SPACE PHYSICS | 1992年 / 15卷 / 05期
关键词：
PHYSICS OF THE MAGNETOSPHERE; PARTICLE RADIATION; SOLAR WIND;
D O I：
10.1007/BF02507831
中图分类号：
学科分类号：
摘要：
Past observations and present models of the solar-wind controlled dayside Pc 3-Pc 4 pulsations are reviewed. A year-long comparison between solar-wind parameters obtained from IMP-8 and micropulsation measurements made at L'Aquila is presented. This study shows that at low latitudes the relationship between the two phenomena is more clear than at high latitudes. In particular, in agreement with the upstream-wave source mechanism, different frequency regimes of pulsations can be related to different regions of the high-velocity streams. Some examples of spectacular wave trains, with unusual amplitude and period, occurred during the strong geomagnetic storm of March 13, 1989 are also presented.
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收藏
页码：575 / 586
页数：12
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