| 南北半球亚极光区极化流分布特征的统计学研究 |
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| 引用本文： | 王慧,华滢,杨冰,马淑英. 南北半球亚极光区极化流分布特征的统计学研究[J]. 极地研究, 2011, 23(3): 178-182. DOI: 10.3724/SP.J.1084.2011.178 |
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| 作者姓名： | 王慧 华滢 杨冰 马淑英 |
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| 作者单位： | 武汉大学电子信息学院空间物理系 |
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| 基金项目： | 国家自然科学基金，国家海洋公益性行业科研专项，留学归国人员基金，中央高校基本科研业务费专项资金资助 |
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| 摘 要： | 利用DMSP卫星粒子数据,对南北半球20 000多个亚极光区极化流(SAPS)事件进行统计学分析,重点研究SAPS的发生率及其发生位置隧季节和世界时的分布,研究表明:(1)SAPS的发生率有明显的季节和世界时依赖性,主要发生在春秋季节,显示出较强的地磁活动依赖性;(2)SAPS在冬至也较多发生,可能与亚暴过程有关;(3...
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| 关 键 词： | 亚极光区极化流 电导率DMSP |
| 收稿时间： | 2011-03-04 |
STATISTICAL STUDY OF SAPS CHARACTERISTICS IN BOTH HEMISPHERES |
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| Wang Hui,Hua Ying,Yang Bing,Ma Shuying. STATISTICAL STUDY OF SAPS CHARACTERISTICS IN BOTH HEMISPHERES[J]. Chinese Journal of Polar Research, 2011, 23(3): 178-182. DOI: 10.3724/SP.J.1084.2011.178 |
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| Authors: | Wang Hui Hua Ying Yang Bing Ma Shuying |
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| Affiliation: | Dept. of Space Physics, School of Electronics and Information, Wuhan University |
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| Abstract: | This work has investigated the seasonal and universal time (UT) variation of the occurrence frequency and magnetic latitude (MLat) of SAPS in both hemispheres by using DMSP particle observations. It is found: (1) SAPS tend to occur mostly at equinox seasons, showing strong magnetic activity dependence. (2) SAPS tend to occur secondly in winter, which may be related to substorm processes. (3) Ionospheric conductivity has important influences on SAPS occurrence, with more occurrence at lower conductivity. (4) SAPS tend to shift equatorward with low ionospheric conductivity. |
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| Keywords: | DMSP |
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