湖北大畈核电站周边地区龙卷风参数的计算与分析  

Calculation and Analysis of Tornado Parameters around Dafan Nuclear Power Plant in Tongshan,Hubei

作　　者：陈正洪[1,2] 刘来林[2] 袁业畅[2] 

机构地区：[1]中国气象局武汉暴雨研究所,湖北武汉430074 [2]武汉区域气候中心,湖北武汉430074

出　　处：《南京气象学院学报》2009年第2期333-337,共5页Journal of Nanjing Institute of Meteorology

基　　金：湖北省发展和改革委员会核电项目办资助

摘　　要：通过气象站记录、灾害大典、气候影响评价等多种途径,收集了核电站周边地区的300 km×300 km区域1956—2000年间的龙卷风资料,并根据《核安全导则汇编(上册)》规定的方法详细计算了龙卷风各个参数间的关系,最后给出核电站的龙卷风设计基准参数,即最大风速为70 m/s(对应概率为1×10-8),平移速度13.5 m/s,旋转半径206 m,最大气压降9.9 hPa,设计基准等级为F3级,这些结论已在设计部门得到应用。Based on the data collected from the area of 300 km×300 km（it covers 44 cities or counties） around the Dafan Nuclear Power Plant in Tongshan county,Hubei province from 1956 to 2000 through many ways,such as the record at meteorological stations,the collection of disaster events,the reports of climate impact assessment,etc.,the relationships between main parameters that describe the characteristics of a tornado are calculated according to Collections of National Standard for the Safety of Nuclear Power Plant.Finnally,the design basis standard parameters of tornadoes for the plant are given：maximum wind speed is 70 m/s（the corresponding probability is 1×10-8）,the horizontal moving speed of tornadoes is 13.5 m/s,the rotating radius is 206 m,the maximum air pressure drop is 9.9 hPa,the design basis standard wind speed category is F3（Fujita tornado scale）.And the above results have been used by the associated planning and designing departments.

关 键 词：核电站 龙卷风 富士达F等级(Fujita等级) 参数计算 最大风速 设计基准等级 

分 类 号：P425.6[天文地球—大气科学及气象学]