沙漠与绿洲气象2025，Vol.19Issue(3)：96-103,8.DOI:10.12057/j.issn.1002-0799.2311.07001
多源新型探测资料在一次局地短时暴雨中的应用分析
Utilizing Multi-source Detection Data for Localized Short-Duration Rainstorms
摘要
Abstract
Using multi-source detection data from S-band dual-polarization weather radar,millimeter-wave cloud radar,microwave radiometer,and laser aerosol radar,this study analyzed the environmental background and structural characteristics of the precipitation cloud associated with a localized short-duration rainstorm that occurred in Jinhua on August 6,2023.The findings are as follows:(1)The temperature and humidity stratification,characterized by cold and dry air above and warm and moist air below,created unstable atmospheric conditions.Meanwhile,a surface mesoscale cold front and cyclonic vortex provided favorable dynamic and thermal triggering mechanisms.(2)The rapid increases of both differential reflectivity(ZDR)and specific differential phase(KDP)lead to the formation of ZDR and KDP columns extending close to the 0 ℃ layer,indicating the existence of strong updrafts and intense precipitation.These features serve as crucial references for short-duration rainstorm warnings.(3)This radar detected the development of convective clouds 20 minutes in advance.The rapid extension of echo tops to 12 km,the reflectivity increased by more than 30 dBZ,and a sharp rise in radial velocity to 10 m·s-1 in the upper layers provided significant early indications for the impending rainstorm.(4)Sudden increase in Integrated Water Vapor(90 kg·m-2)and Integrated Liquid Water Content(10 g·m-2),sustained over time,were identified as reliable indices for forecasting short-duration rainstorms.(5)The"high extinction and high depolarization"spectra,characterized by extinction coefficients exceeding 2 and depolarization ratios greater than 0.3,effectively signaled the occurrence of the short-duration rainstorms.关键词
多源新型探测资料/短时暴雨/毫米波云雷达/微波辐射计Key words
multi-source new-type detection data/short-duration rainstorm/millimeter wave cloud radar/microwave radiometer分类
天文与地球科学引用本文复制引用
吕健,刘圣楠,邵伟军,胡敏,王俊人,徐业佳,杨威..多源新型探测资料在一次局地短时暴雨中的应用分析[J].沙漠与绿洲气象,2025,19(3):96-103,8.基金项目
浙江省气象局科技项目(2023QN32) （2023QN32）
金华市科学技术局项目(2022-4-081) （2022-4-081）
