台站级CINRAD/SA雷达数据质量检测技术及应用  

Station-Level CINRAD/SA Radar Data Quality Control and Its Application

作　　者：周红根 许波[2] 曹德煜 刘俊[4] 吴嘉伟 肖晨[2] 马雷[6] Zhou Honggen;Xu Bo;Cao Deyu;Liu Jun;Wu Jiawei;Xiao Chen;Ma Lei(Jiangsu Meteorological and Technical Equipment Centre,Nanjing 210008;Huaian Meteorological Service,Jiangsu,Huaian 223001;Lianyungang Meteorological Service,Jiangsu,Lianyungang 222000;Taizhou Meteorological Service,Jiangsu,Taizhou 225300;Nantong Meteorological Service,Jiangsu,Nantong 226000;Nanjing University of Information Science ＆Technology,Nanjing 210044)

机构地区：[1]江苏省气象探测中心,南京210008 [2]江苏省淮安市气象局,淮安223001 [3]江苏省连云港市气象局,连云港222000 [4]江苏省泰州市气象局,泰州225300 [5]江苏省南通市气象局,南通226000 [6]南京信息工程大学,南京210044

出　　处：《气象科技》2018年第3期455-461,共7页Meteorological Science and Technology

基　　金：江苏省气象局科研基金项目(KM201508)资助

摘　　要：新一代天气雷达产品均由雷达基数据直接或通过算法等生成的,可能会出现数据质量问题,因此,利用雷达基数据和雷达主要状态信息,开展数据质量检测,能及时发现雷达回波强度异常值、无回波、奇异回波图等问题。本文对CINRAD/SA雷达运行的性能参数、监控信息、报警信息进行梳理,形成判据及阈值,并对江苏省SA雷达异常回波、基数据进行统计、分析,以解决由于雷达本身原因造成的回波异常,构建台站级雷达数据质量检测的方法,重点对雷达基数据进行数据质量检测,及时发现异常回波、无回波等数据质量问题,通过短信预警,指导台站进行维护维修,从而限制由于雷达自身原因造成的异常回波资料进入预报领域。Products of CINRDA/SA are generated by radar base data directly or algorithms based on base data indirectly.Sometimes data quality goes wrong.Combing the running status information with radar base data to conduct the quality control of weather radar data is an effective approach,which can find the problems such as the abnormal values of radar echoes,no echo,and bad radar charts in time.In order to construct the station-level quality control method of weather radar data,the performance parameters and the monitoring and alarm information of nine weather radar sets in Jiangsu Province are analyzed,and the samples of abnormal echoes and base data are statistically analyzed and studied in detail.Based on above,the station-level quality control method is built,aiming to monitor the radar base data.The testing of radar base data quality is carried out.The alarm message can be sent to the duty officer immediately when it goes wrong,which is done to prevent abnormal echo data from entering the field of prediction.The prediction accuracy can be improved indirectly.

关 键 词：基数据 数据质量控制 新一代天气雷达 算法 

分 类 号：P415.2[天文地球—大气科学及气象学]