基于X波段相控阵雷达的一次暴雨过程分析  

Analysis of a rainstorm process based on X-band phased array radar

作　　者：李鸾 付伟 文想成 Li Luan;Fu Wei;Wen Xiangcheng(Wuhu Meteorological Bureau,Wuhu 241000)

机构地区：[1]芜湖市气象局,芜湖241000

出　　处：《气象水文海洋仪器》2025年第1期30-32,36,共4页Meteorological,Hydrological and Marine Instruments

基　　金：2023年度安徽省气象局复盘专项(kY202308);2023年度安徽省气象局自主创新专项(202322)资助。

摘　　要：文章使用常规气象资料、合肥S波段多普勒天气雷达和芜湖X波段相控阵天气雷达资料对2022-06-05芜湖暴雨过程进行分析,结果表明:中低空切变线南侧有明显暖湿气流输送,配合高空冷空气南下,冷暖气流交汇使地面辐合线在芜湖一带长时间维持,形成此次短时大暴雨;X波段相控阵雷达探测精度高,三维反演风场可反映中小尺度对流风暴的动力结构;此次过程中X波段相控阵雷达观测到芜湖弋江区中层风场有明显的辐合上升,使得风暴移到此处不断加强发展,形成“列车效应”,是造成此处暴雨的动力原因。This paper uses conventional meteorological data,Hefei S band Doppler weather radar and Wuhu X-band phased array weather radar data to analyze the 20220605 rainstorm process in Wuhu.The results show that:there is an obvious warm and wet air flow transport on the south side of the middle and low level shear line,and the cold and warm air flow convergence makes the ground convergence line maintain in Wuhu area for a long time,forming the short-term heavy rainstorm.The X-band phased array radar has high detection accuracy,and the three-dimensional inverted wind field can reflect the dynamic structure of small and medium-sized convective storms.During this process,the X-band phased array radar observed that the wind field in the middle layer of Yijiang District,Wuhu,had obvious convergence and rise,which made the storm move here and strengthen its development,forming the"train effect",which was the dynamic reason for the rainstorm here.

关 键 词：相控阵雷达 短时暴雨 风场分析 

分 类 号：P458[天文地球—大气科学及气象学]