文档介绍：S16 临汾市近57 年雷暴气候特征分析公芙萍 1 ,崔建国 2 ,范亚辉 1 ,纪春艳 1 ,吕爱丽 1 ( 山西省临汾市气象局,山西临汾 041000; 山西省阳泉市气象局,山西阳泉045000) 摘要:为了深入了解临汾市的雷暴气候特征,为雷电预测及防雷减灾提供科学依据,利用1954—2010 年近57 年地面气象观测站的雷暴观测资料,借助数理统计、线性拟合、气候倾向率法以及M-K 突变检验法、小波分析等方法,对临汾市的雷暴气候特征进行统计分析。结果表明, 天;雷暴日出现最多的年份出现在1959 年(47 天) , 最少的年份在2009 年(12 天) ;临汾市雷暴日数月变化呈单峰抛物线型,其峰值位于7 月;临汾市平均雷暴初日为4月29 日,平均雷暴终日为9月25 日;临汾市平均雷暴持续期为148 天;雷暴出现时大多数同时伴有降水出现,湿雷暴占总数的 79%。由此得出,临汾市雷暴日数呈现减少趋势;雷暴发生具有明显的季节性,夏季最多,冬季无雷暴;历年雷暴持续天数的变化呈波状变化。关键词: 雷暴日;时空变换;气候特征;统计分析 The Analysis of Thunderstorm Cl imate Character istic Nearly 57 Years in Linfen City Gong Fuping 1 , Cui Jianguo 2 ,Fan Yahui1,Ji Chuiyan 1,Lv Aili 1 (Meteorological Bureau of Linfen City, Linfen Shanxi 041000, Meteorological Bureau of Yangquan City, Yangquan Shanxi 045000) Abstract: In order to understand the climatic characteristics of thunderstorm in Linfen City, the thunder and lightning protection and disaster reduction to provide scientific basis for prediction. The author utilized the thunderstorm observation data from the ground meteorological observatory in Linfen nearly 57 years from 1954 to 2011, statistically analyzed the thunderstorm climate ch aracteristic of Linfen City by mathematical statistics, linear fitting, climate trend rate method and M-K- mutations inspection, wavelet analysis and so on. The results showed that annual average days of the thunderstorm was day