摘要
利用三个站点(金华、合肥和兰州)同时期的观测数据对边界层高度进行了反演、统计和分析。研究结果表明,三个站点的边界层高度具有明显的季节、日变化特征。除冬季外,金华和合肥的边界层高度要低于兰州。兰州的边界层高度的上升和下降时间与日出、日落时间有着良好的对应关系,合肥的边界层高度则在日出数小时后才出现明显上升。金华、合肥和兰州日间月平均边界层高度最高值分别出现在9月、8月和6月,月平均最大混合层高度出现的月份分别是9月、8月和7月。了解边界层高度的时空分布规律,可以为空气污染防治、天气预报以及气候预测等提供进一步的参考。
This paper utilizes the observed data at three sites,namely Jinhua,Hefei,and Lanzhou sites,for the same period to carry out planetary boundary layer height(PBLH) inversion,statistics,and analysis.The research results show that the PBLHs over Jinhua,Hefei,and Lanzhou have characteristics of seasonal and diurnal variation.The PBLHs over Jinhua and Hefei are lower than that over Lanzhou in spring,summer,and autumn.The starting time of the rise and fall of boundary layer height over Lanzhou is in well correspondence with the time of sunrise and sunset,whereas the height over Hefei does not increase significantly until a few hours after sunrise.Jinhua,Hefei and Lanzhou have the highest monthly mean diurnal PBLHs in September,August,and June,respectively,and the corresponding monthly mean maximum mixed layer heights are in September,August,and July,respectively.Studying the spatial and temporal distribution pattern of the PBLH can provide further reference for research of air pollution prevention and control,weather forecasting,and climate prediction.
作者
于思琪
刘东
徐继伟
王珍珠
吴德成
毛敏娟
王英俭
Yu Siqi;Liu Dong;Xu Jiwei;Wang Zhenzhu;Wu Decheng;Mao Minjuan;Wang Yingjian(School of Environmental Science and Optoelectronic Technology,University of Science and Technology of China,Hefei,Anhui 230026,China;Key Laboratory of Atmospheric Optics,Anhui Institute of Optics and Fine Mechanics,Chinese Academy of Sciences,Hefei,Anhui 230031,China;Advanced Laser Technology Laboratory of Anhui Province,Hefei,Anhui 230037,China;Science Island Branch of Graduate School,University of Science and Technology of China,Hefei,Anhui 230026,China;Zhejiang Meteorology Science Institute,Hangzhou,Zhejiang 310008,China)
出处
《光学学报》
EI
CAS
CSCD
北大核心
2021年第24期11-19,共9页
Acta Optica Sinica
基金
“一带一路”国际科学组织联盟联合研究合作专项(ANSO-CR-KP-2020-09)
中国科学院国际合作局对外合作重点项目(116134KYSB20180114)。
关键词
遥感
激光雷达
边界层高度
多站点
日变化
季节变化
remote sesing
Lidar
planetary boundary layer height
multiple sites
diurnal variation
seasonal variation
作者简介
通信作者:刘东,dliu@aiofm.ac.cn。
