由环电流的宇宙线效应验证二维对称环电流模型

	由环电流的宇宙线效应验证二维对称环电流模型
	孙小青 ; 叶宗海
刊名	空间科学学报
	1993
卷号	13 期号:2 页码:140-145
关键词	宇宙线暴时增加地磁截止刚度环电流地磁暴
ISSN号	0254-6124
其他题名	CHECKING TWO-DIMENSIONAL SYMMETRIC MODEL OF RING CURRENT BY THE EFFECTS OF EQUATORIAL RING CURRENTS ON COSMIC RAY
通讯作者	北京8701信箱
中文摘要	本文利用不同纬度超中子堆记录的宇宙线强度,对不同磁暴类型下环电流的宇宙线效应进行了分析。加强的西向环电流使宇宙线截止刚度下降,在某些特大的磁暴中,中低纬字宙线截止刚度下降可达1GV以上,从而使宇宙线强度增加。利用二维对称环电流模式,从宇宙线的角度计算了环电流的磁暴效应。与实际观测值的对比显示,除非特大的磁暴过程,利用该模式所得结果与实际观测符合得较好。
英文摘要	Using the data from 11 ground-based super neutron monitors, this paper deals with the effects of equatorial ring currents on cosmic rays, which include that of storm-time increases and cut off rigidities in the analysis of this paper, during periods of six geomagnetic storms of 1984-1989. It is shown that the storm-time increases are due to the existence of westward equatorial ring currents developing or intensifying during geomagnetic storms. The storm-time increases are of latitude and local time dependence and the intensifying ring currents CRH cause the depression of cosmic ray cutoff rigidities．BY comparing the storm-time increases and the registrations of H-component recorded by Beijing Standard Seismic Storion．It can be seen that they correlate negatively with each other On the basis of two-dimensional symmetric model of ring current it is also shown that， except som e very large storms，the expected decreases of H-component originated from a ring current which are calculated with tM s model are in good agreem ent with the actual obserrations on the ground．
学科主题	空间环境
语种	中文
内容类型	期刊论文
源URL	[http://ir.cssar.ac.cn/handle/122/368]
专题	国家空间科学中心_空间环境部
推荐引用方式 GB/T 7714	孙小青,叶宗海. 由环电流的宇宙线效应验证二维对称环电流模型[J]. 空间科学学报,1993,13(2):140-145.
APA	孙小青,&叶宗海.(1993).由环电流的宇宙线效应验证二维对称环电流模型.空间科学学报,13(2),140-145.
MLA	孙小青,et al."由环电流的宇宙线效应验证二维对称环电流模型".空间科学学报 13.2(1993):140-145.