【摘要】 本文统计了1966-1978年2级以上太阳耀斑引起的大气涡度面积指数(VAI)的扰动;给出了不同持续时间、不同亮度、不同季节、发生在日面不同位置上的太阳耀斑对涡度面积指数的影响.发现只有在冬天出现的,持续时间大于1.5小时的亮耀斑,在第3天对VAI有最大的扰动(下降最大值为平均值的16.4％);太阳耀斑引起的扰动有日面东西不对称性;出现在日面西边0-30°的亮耀斑和非亮耀斑(它们的持续时间大于1.5小时)引起VAI的大扰动,最大值扰动分别出现在第3天和第7天.更多还原

【Abstract】 This paper provides a statistical study of the disturbance of atmospheric vorticity area index (VAI) initiated by solar flares over importance two for 1966-1978. It shows the effects induced by solar flares grouped by their potical importance, duration, season and the distance from the central meridiam. The results show that only the bright solar flares occurred in the winter season and with duration longer than 1.5 hours can significantly disturb vorticity area index. The maximum decrease on the third day after the solar flares is o’f the order of 16.4%. There is east-west asymmetry in distribution of flare’s position in response to the VAI disturbance. The bright and non-bright flares which occur on the west 0-30 from the central meridiam with duration longer than 1.5 hours, induce the largest disturbance for VAI on the third day and the seventh day after the flares respectively.更多还原