气象与环境学报2024，Vol.40Issue(5)：12-19,8.DOI:10.3969/j.issn.1673-503X.2024.05.002
基于3次强降水过程的辽宁地区S波段天气雷达质控算法初探
Quality control algorithm of S-band weather radar in Liaoning province based on three heavy precipitation processes
摘要
Abstract
In this paper,a quality control algorithm of S-band dual polarization weather radar is proposed in order to solve the data quality problem of S-band weather radar in Liaoning province.The algorithm included five parts:initial azimuth consistency revision,non-standard blockage revision,ground clutter recognition,threshold control and clutter elimination.Based on the S-band dual polarization weather radar data under different weather processes in Yingkou region,the distribution characteristics of reflectivity level texture,correlation coefficient variance,dif-ferential reflectivity variance and differential propagation phase shift variance corresponding to feature clutter in Li-aoning area were statistically characterized,the localization parameters corresponding to the fuzzy logic clutter rec-ognition algorithm are established.The quality control algorithm was verified by using the radar base data during three severe convective weather events(August 19,2021;June 9,2019;June 25,2022)in Liaoning province.The results show that the algorithm has less loss of meteorological echoes.It can improve the quality of S-band radar data,effectively revise the non-standard obscuration during the weather process,eliminate the non-meteorological echoes such as ground clutter and electromagnetic interference.The study can provide a reference for the monito-ring of the S-band dual-polarization radar quality control technique in the strong convective weather.关键词
雷达数据质控/双偏振天气雷达/模糊逻辑算法/地物杂波识别Key words
Radar data quality control/Dual polarization weather radar/Fuzzy logic algorithm/Ground clutter rec-ognition分类
天文与地球科学引用本文复制引用
侯畅,邬亮,苗传海,康博识,单薇薇,姚文,李宗昊,杨磊..基于3次强降水过程的辽宁地区S波段天气雷达质控算法初探[J].气象与环境学报,2024,40(5):12-19,8.基金项目
辽宁省气象局年度基金项目(202214)和中国气象局创新发展专项(CXFZ2022J059)共同资助. （202214）
