雷达气候学分析方法在2020年汛期强降水中的应用  

Application of radar climatology analysis method to heavy precipitation in flood season in 2020

作　　者：杨金红[1] 郭建侠[1] 王佳 康家琦 刘圆 石城[1] Yang Jinhong;Guo Jianxia;Wang Jia;Kang Jiaqi;Liu Yuan;Shi Cheng(Meteorological Observation Centre of CMA,Beijing100081)

机构地区：[1]中国气象局气象探测中心,北京100081

出　　处：《气象水文海洋仪器》2022年第2期86-89,共4页Meteorological,Hydrological and Marine Instruments

基　　金：国家重点研发计划项目(2018YFC1507502)资助.

摘　　要：基于中国气象局气象探测中心自主研发的雷达组网拼图产品和地面降水产品,文章利用雷达气候学分析方法分析了2020年汛期长江中下游地区降水极端性的异常特征。结果表明:此次长江中下游地区持续性强降水呈现出几个特点:一是降水回波发展存在明显的阶段性;二是回波雨带维持少动;三是降水回波强度局地性偏大,导致降雨的落区重叠多、累计雨量大、极端性降水强,部分地区重复受灾。Based on the radar network jigsaw products and surface precipitation products independently developed by the meteorological observation centre of CMA,the abnormal characteristics of precipitation extremes in the middle and lower reaches of the Yangtze River in the flood season of 2020are analyzed by using radar climatology analysis method.The results show that the continuous heavy rainfall in the middle and lower reaches of the Yangtze River presents several characteristics.First,the development of precipitation echo has obvious stages.Second,the echo rain band maintains less movement.Third,the local intensity of precipitation echo is too large,which led to more overlapping rainfall areas,large cumulative rainfall,strong extreme precipitation,and repeated disaster in some areas.

关 键 词：汛期 降水特征 监测分析 防灾减灾 

分 类 号：P458.3[天文地球—大气科学及气象学]