宇宙线暴时增加及其特征

	宇宙线暴时增加及其特征
	叶宗海 ; 孙小青
刊名	空间科学学报
	1992
卷号	12 期号:4 页码:270-278
关键词	宇宙线Forbush下降暴时增加环电流地磁暴
ISSN号	0254-6124
其他题名	STORM-TIME INCREASE IN COSMIC RAY INTENSITY AND ITS CHARACTERISTICS
通讯作者	北京8701信箱
中文摘要	利用11个地面超中子堆的资料分析了6个不同地磁暴期间由于赤道环电流增强引起的暴时增加,并分析了它们的特征。结果表明,地磁暴愈强,暴时增加愈明显。暴时增加与地磁H分量的变化有很好的负相关,并有明显的纬度效应或与地磁截止刚度有依赖关系。北京地区是暴时增加相当明显的区域。暴时增加还有明显的地方时依赖关系。在白昼一侧的增加更大,表明环电流具有不对称性的特征。
英文摘要	The cosmic ray increases due to considerable depressions of cosmic ray cut off rigidity during large geomagnetic storms are investigated.Data from 11 superneutron monitors in world network are analyzed for six geomagnetic storms of various type during 1984-1989.The results show that the storm-time increases are due to existence of westward equatorial ring currents developing or intensifying during geomagnetic storms.The stronger the geomagnetic storm,the larger the storm-time increase.The storm-tlme increasos have obvious latitude effect or geomagnetic cut off rigidity dependence．Beijing station is at the obvious region for the storm-time increase， and storm-time increases are of looaI tim e dependence．This enhancement is larger atthe daytime than at the nighttime．Showir g that the intensifying ring current is asymmetrica
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/122/369]
专题	国家空间科学中心_空间环境部
推荐引用方式 GB/T 7714	叶宗海,孙小青. 宇宙线暴时增加及其特征[J]. 空间科学学报,1992,12(4):270-278.
APA	叶宗海,&孙小青.(1992).宇宙线暴时增加及其特征.空间科学学报,12(4),270-278.
MLA	叶宗海,et al."宇宙线暴时增加及其特征".空间科学学报 12.4(1992):270-278.