Analysis of Boundary Layer Structure,Turbulence,and Flux Variations before and after the Passage of a Sea Breeze Front Using Meteorological Tower Data

作     者：Ju LI Junxia DOU Donald H. LENSCHOW Mingyu ZHOU Lihong MENG Xiaobin QIU Yubing PAN Jingjiang ZHANG Ju LI;Junxia DOU;Donald H.LENSCHOW;Mingyu ZHOU;Lihong MENG;Xiaobin QIU;Yubing PAN;Jingjiang ZHANG

作者机构：Institute of Urban Meteorology(Key Laboratory of Urban Meteorology)China Meteorological AdministrationBeijing100089China State Key Laboratory of Severe WeatherChinese Academy of Meteorological SciencesChina Meteorological AdministrationBeijing100081China Beijing Research Center for Urban Meteorological Engineering and TechnologyBeijing100081China National Center for Atmospheric ResearchBoulderCO80307USA National Marine Environmental Prediction CenterBeijing100081China Tianjin Key Laboratory for Oceanic MeteorologyTianjin300074China Tianjin Institute of Meteorological ScienceTianjin300074China 

出 版 物：《Journal of Meteorological Research》 (气象学报（英文版）)

年 卷 期：2023年第37卷第6期

页      面：855-877页

核心收录：

学科分类：07[理学] 070601[理学-气象学] 0706[理学-大气科学] 

基　　金：Supported by the Beijing Natural Science Foundation(8222048) Open Grants of the State Key Laboratory of Severe Weather(2022LASW-A03) Key Innovation Team of China Meteorological Administration(CMA2022ZD09) China Meteorological Administration Innovation Development Project(CXFZ2023J061) Tianjin Meteorology Service Project(202113ybxm05) 

主　　题：sea breeze front boundary layer structure turbulence flux meteorological tower 

摘      要：A detailed analysis of a sea breeze front(SBF)that penetrated inland in the Beijing–Tianjin–Hebei urban agglomeration of China was *** focused on the boundary layer structure,turbulence intensity,and fluxes before and after the SBF passed through two meteorological towers in the urban areas of Tianjin and Beijing,*** changes in temperature,humidity,winds,CO_(2),and aerosol concentrations were observed as the SBF *** in these changes at the two towers mainly resulted from their distances from the ocean,boundary layer conditions,and background *** the SBF approached,a strong updraft appeared in the boundary layer,carrying near-surface aerosols aloft and forming the SBF *** was followed by a broad downdraft,which destroyed the near-surface inversion layer and temporarily increased the surface air temperature at *** feeder flow after the thermodynamic front was characterized by low-level jets horizontally,and downdrafts and occasional updrafts *** increased significantly during the SBF’s passage,causing an increase in the standard deviation of wind components in *** increase in turbulence was more pronounced in a stable boundary layer compared to that in a convective boundary *** passage of the SBF generated more mechanical turbulences,as indicated by increased friction velocity and turbulent kinetic energy(TKE).The shear term in the TKE budget equation increased more significantly than the buoyancy *** atmosphere shifted to a forced convective state after the SBF’s passage,with near isotropic turbulences and uniform mixing and diffusion of *** heat fluxes(latent heat and CO_(2)fluxes)showed positive(negative)peaks after the SBF’s passage,primarily caused by horizontal and vertical transport of heat(water vapor and CO_(2))during its *** study enhances understanding of boundary layer changes,turbulences,and fluxes during the passage of SBFs over u