空间科学学报2017,Vol.37Issue(6):675-689,15.DOI:10.11728/cjss2017.06.675
磁层顶通量传输事件的经验重构
Empirical Reconstruction of Flux Transfer Events at the Magnetopause
摘要
Abstract
Flux Transfer Events (FTEs) observed at the Earth's magnetopause are generally believed to be products of transient and patchy magnetic reconnection processes,serving as linkage channels between solar wind and Earth's magnetosphere and therefore playing a crucial role in the exchange of mass,momentum,and energy between these two regions.Magnetic field reconstruction techniques are useful for better understanding FTE's formation and evolution and its interaction with surrounding environment.Traditional techniques such as Grad-Shafranov reconstruction and FTE model fitting methods,however,are confined to specific physical conditions.A new multi-point method applicable to two-dimensional FTEs in various physical condition is devised based on plane linear interpolation.The applications to two FTEs observed by THEMIS and Cluster show that the method can quickly and efficiently reconstruct the spatial distribution of the magnetic field structure,and will help to infer the magnetic field line configurations,understand the temporal variation of measured data and analyze the spatial distribution characteristic of plasma parameters relative to the magnetic field.关键词
通量传输事件/磁层顶/经验重构/多点分析Key words
Flux transfer event/Magnetopause/Empirical reconstruction/Multi-point analysis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的经验重构[J].空间科学学报,2017,37(6):675-689,15.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)