近55年云浮地区暴雨特征分析  

Analysis of the Characteristics of Hard Rains in the Area of Yunfu for the Past 55 Years

作　　者：张柳红 张志坤 史丽 郑璟[1] ZHANG Liu-hong;ZHANG Zhi-kun;SHI Li;ZHENG Jing(Climate Center of of Guangdong Province,Guangzhou,510641;Metcorological Bureau of luodling,Luodig 527200)

机构地区：[1]广东省气候中心,广东广州510641 [2]罗定市气象局,广东罗定527200

出　　处：《广东气象》2020年第5期23-26,共4页Guangdong Meteorology

基　　金：广东省科技专项资金项目(2019B020503);广东省科技计划项目(2017B020244002、2019A070716007);广东省气象局重点项目(GRMC2019Z01);广东省气候中心科研项目(QH201903)。

摘　　要：基于1965—2019年云浮、罗定、新兴和郁南4个国家气象站的逐日降水观测资料,统计分析了云浮地区的暴雨特征。结果表明:云浮地区暴雨呈纬向地带性分布,南多北少;云浮地区历年暴雨年际变化大,总体呈上升趋势但不显著,近55年年均暴雨量和暴雨日数分别为376.9 mm和5.2 d,最大值均出现在1983年;云浮地区月均暴雨量和暴雨日数呈双峰型变化,峰值在5和8月,全年暴雨平均有83%以上出现在汛期。Using daily rainfall observation data from four national meteorological stations in Yunfu,Luoding,Xinxing and Yu’nan from 1965 to 2019,this paper performs a statistical study of the characteristics of hard rains in the area of Yunfu.The result is shown as follows.In the area of Yunfu,the hard rain is zonally distributed,which is more in the south than in the north.The hard rain varies much interannually,showing a generally increasing but insignificant trend.For the 55 years studied,annual mean hard rain amount and annual mean number of hard rain days are 376.9 mm and 5.2 d,respectively,with both their maximum recorded in 1983.Monthly mean hard rain amount and monthly mean number of hard rain days are bimodal,with the peaks in May and August.On average,more than 83%of the annual hard rain occurs in raining seasons.

关 键 词：气候学 暴雨量 暴雨日数 云浮地区 

分 类 号：P463.1[天文地球—大气科学及气象学]