太阳耀斑爆发对我国夏季雷暴活动的影响

THE EFFECT OF SOLAR FLARES ON THE THUNDERSTORM ACTIVITIES OVER CHINA IN SUMMER SEASON

本文研究了我国１８５个气象测站１９７１～１９８０年夏季雷暴活动频数对２级以上太阳耀斑的影响。江、浙、皖、赣一带耀斑爆发后雷暴平均频数比爆发前提高（４０～４３）％；而华北地区和东北地区则降低（１９～３１）％。经Ｓｔｕｄｅｎｔ－ｔ检验，耀斑爆发前后雷暴频数平均值的差异显著性分别通过了优于１０－５、５×１００３及１０－４的置信度检验．

In the summer solar flares of class 2 or greater can affect the thunderstorm fre-quency over 185 meteorological stations in China from 1971～1980.The means of thunder-sdorm frequencies of the groups after the flare day are higher than those before the day by40%～43%over east China and lower by 19%～31% over north China and north-east.The significance of the differences of the means between the two groups tesed by student-t distribution are 10-5 ×10-3 and 1004 or better respectively.