大气与环境光学学报2025，Vol.20Issue(2)：145-157,13.DOI:10.3969/j.issn.1673-6141.2025.02.003
佛山干季边界层结构及其对空气质量的影响
Boundary layer structure and its effect on air quality in Foshan during dry season
摘要
Abstract
To reveal the influence of the characteristics of the boundary layer structure in Foshan City,China,during the dry season on air quality and develop more scientific pollution control measures,a comprehensive three-dimensional observation of atmospheric boundary layer structure in Foshan was carried out by using the ground-based remote sensing equipment(including wind profiler radar,lidar and microwave radiometer)at Shunde,Chancheng and Sanshui stations in Foshan.The research results show that:(1)There are significant differences in the boundary layer structure of different regions in Foshan City.For example,as the urbanization degree of Chancheng is higher than that of Sanshui and Shunde,the wind speed at the bottom of the boundary layer in Chancheng is the lowest and the horizontal diffusion condition is the worst.While Shunde,located in the south of Foshan,has more water vapor and the highest pollutant concentration,which may be related to the hygroscopic growth of aerosols.(2)The decrease of boundary layer height leads to a sharp increase in pollutant concentration near the ground.(3)In Foshan area,there is generally a small wind layer with wind speed below 2.6 m/s near the ground layer,and the thickness of the small wind layer has an obvious diurnal variation,with the maximum thickness in the early morning,which is prone to pollution.In addition,the thickness of the small wind layer is highly correlated with the concentration of fine aerosol particles,and the prediction of the small wind layer thickness can be carried out in the later stage.关键词
边界层/小风层厚度/风廓线雷达/激光雷达/微波辐射计Key words
atmospheric boundary layer/small wind layer thickness/wind profile radar/lidar/microwave radiometer分类
环境科学引用本文复制引用
步巧利,李浩文..佛山干季边界层结构及其对空气质量的影响[J].大气与环境光学学报,2025,20(2):145-157,13.基金项目
院士专家工作站项目(20210022),佛山市气象局项目(202103) （20210022）
