气象2025，Vol.51Issue(5)：517-528,12.DOI:10.7519/j.issn.1000-0526.2025.033101
激光测风雷达与多普勒天气雷达的速度对比与分析
Speed Comparison and Analysis of Wind Lidar and Doppler Weather Radar
摘要
Abstract
This study presents a comparative analysis of wind observations between a Doppler weather radar and a wind lidar.By integrating high-resolution vertical profiles of horizontal/vertical wind speeds and directions from the wind lidar,the radial velocities of the wind profiles relative to the Doppler weather radar are derived,and the consistency of these velocities with radial velocities from nighttime clear-air ech-oes observed by the weather radar is analyzed.This method was applied to evaluate the May 2023 data from the CINRAD/SA Doppler weather radar and a co-located wind lidar in Daxing,Beijing.The results indicate that there is a mean radial velocity difference of 0.37 m·s-1 between the two systems with a monthly standard deviation of 3.66 m·s-1.Daily assessments suggest that the average differences of ra-dial velocities in 23 days between the two systems are within±1 m·s-1,while their standard deviations in 25 days are below 4 m·s-1.The analysis demonstrates that the radial velocity of weather radar can be analyzed day by day and month by month based on wind lidar data combined with weather radar clear-air echo,supporting early detection of biases caused by equipment malfunctions or inadequate maintenance.Furthermore,the results confirm that the clear-air echo of weather radar is mainly generated by meteoro-logical factors,and the radial velocity of clear-air echo of weather radar at night can represent the atmos-pheric wind field velocity.The nighttime clear-air echoes observed by the weather radar can predominantly reflect meteorological characteristics,with their radial velocities accurately representing atmospheric wind field.关键词
天气雷达/晴空回波/径向速度/激光测风雷达Key words
weather radar/clear-air echo/radial velocity/wind lidar分类
大气科学引用本文复制引用
滕玉鹏,李斐斐,夏芸洁,胡姮,吴蕾,马若赟,李思腾,方亚芬..激光测风雷达与多普勒天气雷达的速度对比与分析[J].气象,2025,51(5):517-528,12.基金项目
国家自然科学基金青年科学基金项目(42205145)资助 （42205145）
