随州市雷暴天气气候特征分析  

Analysis of Thunderstorm Weather and Climate Characteristics in Suizhou

作　　者：王莉萍[1] 黄翠华[1] 王波[1] WANG Li-ping(Suizhou Meteorological Bureau of Hubei Province,Suizhou,Hubei 441300)

机构地区：[1]湖北省随州市气象局,湖北随州441300

出　　处：《农业灾害研究》2020年第4期41-42,44,共3页Journal of Agricultural Catastrophology

摘　　要：利用随州国家基本气象站1981—2013年逐日雷暴观测资料,采用统计分析、线性趋势分析、滑动平均、Mann-Kendall等方法对随州雷暴气候特征变化趋势进行了分析。结果表明,33年间随州平均年雷暴日数为29 d,雷暴日数线性变化呈下降趋势,大约每10年雷暴日数减少2 d。雷暴日数具有明显季节变化,夏季(6~8月)是雷暴多发期,平均雷暴日数19.1 d,占全年雷暴日数66%;初雷日有提前趋势,平均提前近8 d/10年,终雷日有推后趋势,大约推后5 d/10年,雷暴活动期呈增加趋势;一天中,62%雷暴出现在白天(08:00至次日20:00),其中13:00~15:00是雷暴高发时段(占38%);随州雷暴天气系统多来自西北方向,突变检验显示随州雷暴1982年、1996年、2011年存在突变。Based on the daily thunderstorm observation data of Suizhou national basic meteorological station from 1981 to 2013,the change trend of thunderstorm climate characteristics in Suizhou was analyzed by statistical analysis,linear trend analysis,moving average,Mann-Kendall and other methods.The results showed that the annual average number of thunderstorm days in Suizhou was 29 days in the past 33 years,and the linear change of thunderstorm days showed a downward trend,about 2 days per 10 years.The number of thunderstorm days had obvious seasonal variation.In summer(June to August),thunderstorm occurred frequently.The average number of thunderstorm days in summer was 19.1 days,accounting for 66%of the whole year.There was a trend of advance in the first thunderstorm day,with an average advance of nearly 8 days per 10 years.There was a trend of delay in the last thunderstorm day,about 5 days per 10 years later.The thunderstorm activity period showed an increasing trend.In one day,62%of thunderstorms occurred in daytime(08:00-20:00),of which 13:00-15:00 was the high incidence period(38%).The thunderstorm weather system in Suizhou was mostly from the northwest.Mutation test showed that there was mutation in 1982,1996 and 2011.

关 键 词：随州 雷暴 气候特征 

分 类 号：P446[天文地球—大气科学及气象学]