综合观测试验中的激光测风雷达探测性能分析  

Analysis of detection performance of wind lidar in comprehensive observation experiment

作　　者：郑腾飞 李肖雅 万齐林 于鑫[4] 杨晓雁 于明洋 陈炜杰 蔡康龙 ZHENG Tengfei;LI Xiaoya;WAN Qilin;YU Xin;YANG Xiaoyan;YU Mingyang;CHEN Weijie;CAI Kanglong(State Key Laboratory of Severe Weather,Chinese Academy of Meteorological Sciences,Foshan Meteorological Bureau,Foshan 528000,China;Qingdao Huahang Environmental Technology Co.,Ltd.,Qingdao,266000,China;Guangdong-Hong Kong-Macao Greater Bay Area Meteorological Monitoring,Warning and Forecasting Center,Shenzhen 518000,China;Guangdong Meteorological Observatory,Guangzhou 5100805,China;Zhongshan Meteorological Bureau,Zhongshan 528400,China;Shantou Meteorological Bureau,Shantou 515000,China)

机构地区：[1]佛山市气象局,中国气象科学研究院灾害天气国家重点实验室,广东佛山528000 [2]青岛华航环境科技有限责任公司,山东青岛266000 [3]粤港澳大湾区气象监测预警预报中心,深圳518000 [4]广东省气象台,广东广州510080 [5]中山市气象局,广东中山528400 [6]汕头市气象局,广东汕头515000

出　　处：《大气与环境光学学报》2024年第5期529-542,共14页Journal of Atmospheric and Environmental Optics

基　　金：深圳市创新创业专项(KCVFZ20201221173610028);灾害天气国家重点实验室基金(2020LASW-B17);国家重点研发计划项目(2017YFC1501701)。

摘　　要：基于2019年6、7月广州超大城市综合观测试验中的地面资料,激光测风雷达、风廓线雷达资料以及广州S波段双偏振雷达资料,对WindPrint S4000型激光测风雷达和风廓线雷达进行观测对比,并尝试在不同降水强度条件下对激光测风雷达的探测性能进行综合评估分析。结果表明:激光测风雷达与风廓线雷达在非降水时段和非强降水时段观测性能一致性较好,能很好地捕捉到天气系统过境期间边界层低空风场的变化特征,但相比较而言,激光测风雷达成本更低,更加便捷高效,选址选点较为容易,更加符合大城市观测加密布网的需求;激光雷达的探测高度与降水量和降水强度均相关,但与降水强度关系更加密切,即当降水强度增加时,激光雷达的探测高度总体呈下降趋势,且当发生S波段双偏振天气雷达反射率因子达到50 dbz以上强度的降水时,激光测风雷达与风廓线雷达一样无法进行常规观测。Based on the ground data,wind lidar data,wind profile radar data,and Guangzhou S-band dual polarization radar data from the Guangzhou mega city comprehensive observation experiment in June and July 2019,the WindPrintS4000 wind lidar and wind profile radar were observed and compared,and the detection performance of the wind lidar was comprehensively evaluated and analyzed under different precipitation intensity conditions.The results show that the observation performance of wind lidar and wind profile radar is consistent in non precipitation and non heavy precipitation periods,and can capture the characteristics of low-level wind field changes in the boundary layer during the transit of weather systems.However,compared with other methods,the wind lidar has lower cost,is more convenient and efficient,and is easier to select sites,which is more in line with the needs of dense observation network in mega cities;The detection height ofwind lidar is related to both precipitation and precipitation intensity,but it is more closely related to precipitation intensity.As precipitation intensity increases,the detection height of wind lidar generally shows a downward trend.Moreover,when the reflectivity factor of S-band dual polarization weather radar reaches over 50 dbz intensity of precipitation,wind lidar cannot perform routine observations like wind profile radar.

关 键 词：激光测风雷达 风廓线雷达 探测性能 

分 类 号：P412.25[天文地球—大气科学及气象学]