空间科学学报2018，Vol.38Issue(1)：19-28,10.DOI:10.11728/cjss2018.01.019
磁层顶通量传输事件轴向统计分析
Statistical Study of Axial Orientations of Flux Transfer Events at the Magnetopause
摘要
Abstract
Flux Transfer Events (FTE) are related to magnetic reconnection.The typical characteristic of FTE is bipolar variation of the field component normal to the local magnetopause.There still exist different views about FTE global topology on the magnetopause.In different models,the FTE structures are either reconnected flux tubes,or magnetic flux ropes formed by multiple X-line reconnection or sheared magnetic loops formed by single X-line reconnection.To infer the global configuration of FTE,a statistical study of axial orientations of 505 FTE observed by Cluster during one dayside magnetopause crossing season is performed.The result shows that most FTE have north-south-orientated axes roughly aligned with the local magnetospheric flux tubes at both the low-and middle-latitude flanks.However,most FTE have dawn-dusk-orientated axes which are more consistent with the single or multiple X-line orientations at high latitude,especially near the cusp.These statistical features will improve our understanding about the global topology of FTE.关键词
通量传输事件/磁层顶/中心轴向/统计分析Key words
Flux transfer event/Magnetopause/Central axial orientation/Statistical study分类
天文与地球科学引用本文复制引用
李照宇,陈涛..磁层顶通量传输事件轴向统计分析[J].空间科学学报,2018,38(1):19-28,10.基金项目
国家自然科学基金项目(40774081),空间天气学国家重点实验室专项基金项目和中国科学院国家空间中心项目(CAS-NSSC-135)共同资助 （40774081）
