多源地基遥感资料在郑州强飑线天气预警中的应用  

Application of Multi-source Ground-based Remote Sensing Data in Strong Squall Line Weather Warning in Zhengzhou

作　　者：崔慧慧 李娜[1,2] 李荣 王丽[1,2] 张若玉 吴洁[1,2] CUI Huihui;LI Na;LI Rong;WANG Li;ZHANG Ruoyu;WU Jie(Henan Key Laboratory of Agrometeorological Support and Applied Technique,CMA,Zhengzhou 450003,China;Zhengzhou Meteorological Bureau,Zhengzhou 450005,China)

机构地区：[1]中国气象局(河南)农业气象保障与应用技术重点实验室,郑州450003 [2]郑州市气象局,郑州450005

出　　处：《河南科学》2024年第10期1505-1513,共9页Henan Science

基　　金：河南省强对流智能监测和短临预报预警技术创新团队、中国气象局河南省农业气象保障与应用技术重点开放实验室面上项目(KM202334)。

摘　　要：基于风廓线雷达、毫米波云雷达、微波辐射计、雨滴谱等地基遥感探测资料和常规探测资料,研究多源探测资料在郑州强飑线天气预警中的应用.结果表明:①风廓线雷达资料精细地呈现了飑线过程中冷暖平流及垂直风切变的演变,特别是监测到飑线形成前1 h对流层中低层西南急流形成并增厚,深层垂直风切变增强,利于飑线的形成和组织化.②毫米波云雷达产品显示,随着飑线系统移近,云系增多增厚并向下、向上扩展,云中的含水量增大,强反射率因子接地指示降水产生.③微波辐射计反演的温度、湿度及大气不稳定指数在对流发生前后变化特征显著,在飑线临近预警中有一定的参考价值.④雨滴谱数据显示直径2 mm以下的雨滴是此次飑线降水的主要贡献者.Based on ground-based remote sensing detection data such as wind profile radar,millimeter wave cloud radar,microwave radiometer,raindrop spectrum,and conventional detection data,this study investigates the application of multi-source detection data in the weather warning of strong squall lines in Zhengzhou.The results show that:①The wind profile radar data finely present the evolution of cold and warm advection and vertical wind shear during the squall line process.In particular,the southwest jet stream in the middle and lower troposphere is formed and thickened 1 hour before the formation of the squall line,and the vertical wind shear in the deep layer is enhanced,which is conducive to the formation and organization of the squall line.②Millimeter wave cloud radar products show that as the squall line system moves closer,the cloud system increases and thickens,expanding downwards and upwards.The moisture content in the cloud also increases,and the strong reflectivity factor indicates the temperature and humidity of precipitation.③The temperature,humidity and atmospheric instability index inverted by microwave radiometer show significant changes before and after the occurrence of convection,which has certain reference value in the warning of approaching squall lines.④Raindrop spectrum data shows that raindrops with a diameter of less than 2 mm are the main contributors to this squall line precipitation.

关 键 词：强飑线 风廓线雷达 毫米波云雷达 微波辐射计 雨滴谱 

分 类 号：P458[天文地球—大气科学及气象学]