日地系统学中的太阳活动研究（Ⅱ）爆发型太阳活动──太阳耀斑

STUDY OF SOLAR ACTIVITY IN SOLARTERRESTRIAL SYSTEMATOLOGY

爆发型太阳活动是日地系统中重要的扰动源。本文介绍日地系统学中最剧烈的爆发型太阳活动──太阳耀斑的观测研究进展。综述了最近两个太阳周的地面与空间观测所得到的耀斑的物理图象和统计性质，简单讨论了空间观测设备的发展和面临的研究课题。

Impulsive solar activities are very important sources of disturbances in the solar-terrestrial system.In this paper the research progress of solar flares which are the most intense impulsive solar activity is introduced, Firstly. Then, secondly, the physical picture of solar flares obtained from combined analyses of ground-based and space-based observations of flares in tlie recent two solar cycles is described. And finally, a brief discussion of the development of instruments for space observations of flares and problems faced by flare studies in solar-terrestrial systematology is given.