CINRAD/SA双偏振雷达差分反射率的标定与应用  

Calibration and application of differential reflectivity of CINRAD/SA dual polarization radar

作　　者：吴嘉伟 周红根 刘爱兵 姜淑杨 缪明榕 朱毅 Wu Jiawei;Zhou Honggen;Liu Aibing;Jiang Shuyang;Miao Mingrong;Zhu Yi(Nantong Meteorological Bureau,Nantong 226000;Jiangsu Meteorological Detection Center,Nanjing 210019;Yancheng Dafeng Meteorological Bureau,Yancheng 224100)

机构地区：[1]南通市气象局,南通226000 [2]江苏省气象探测中心,南京210019 [3]盐城市大丰区气象局,盐城224100

出　　处：《气象水文海洋仪器》2023年第2期105-108,共4页Meteorological,Hydrological and Marine Instruments

基　　金：上海区域合作基金项目(QYHZ202102);南通市气象局科研开发项目资助。

摘　　要：文章利用高性能仪表开展CINRAD/SA双偏振雷达差分反射率的测试与标定试验,利用太阳法、软件读取法、小雨天顶标定法和金属球标定法等技术评估2个通道一致性和差分反射率的系统误差,比较了各种方法的优劣,并对测量结果和差分反射率在实际降水和冰雹过程中的应用进行了分析,得出结论可与其他双偏振产品结合使用。This paper utilizes high performance instruments to carry out the testing and calibration tests for the differential reflectivity of CINRAD/SA dual polarization radar,and uses solar methods,software reading method,light rain zenith calibration method,metal sphere calibration method and other technologies to evaluate the consistency of 2 channels and the system error of differential reflectivity.Besides,the advantages and disadvantages of various methods are compared and the measuring results and the application of differential reflectivity in actual rainfall and hail processes are analyzed in this paper.It is concluded that better effect can be realized when used in combination with other dual polarization products.

关 键 词：双偏振 差分反射率 标定与应用 

分 类 号：P412.25[天文地球—大气科学及气象学]