Exploring Boundary Layer Physics and Atmospheric Chemistry in Megacities:Insights from the Beijing 325 m Meteorological Tower  

作　　者：Yele SUN Zifa WANG Linlin WANG Xueling CHENG Weiqi XU Yu SHI Wei ZHOU Yan LI Fei HU Zhiqiu GAO Zhongxiang HONG 

机构地区：[1]State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry,Institute of Atmospheric Physics,Chinese Academy of Sciences,Beijing 100029,China [2]College of Earth and Planetary Sciences,University of Chinese Academy of Sciences,Beijing 100049,China

出　　处：《Advances in Atmospheric Sciences》2025年第4期713-730,共18页大气科学进展(英文版)

基　　金：supported by the Strategic Priority Research Program of the Chinese Academy of Sciences(Grant No.XDB0760200);the National Natural Science Foundation of China(Grant Nos.42330605 and 42377101).

摘　　要：The Beijing 325 m meteorological tower stands as a pivotal research platform for exploring atmospheric boundary layer physics and atmospheric chemistry.With a legacy spanning 45 years,the tower has played a crucial role in unraveling the complexities of urban air pollution,atmospheric processes,and climate change in Beijing,China.This review paper provides a comprehensive overview of the measurements on the tower over the past two decades.Through long-term comprehensive observations,researchers have elucidated the intricate relationships between anthropogenic emissions,meteorological dynamics,and atmospheric composition,shedding light on the drivers of air pollution and its impacts on public health.The vertical measurements on the tower also enable detailed investigations into boundary layer dynamics,turbulent mixing,and pollutant dispersion,providing invaluable data for validating chemical transport models.Key findings from the tower’s research include the identification of positive feedback mechanisms between aerosols and the boundary layer,the characterization of pollutant sources and transport pathways,the determination of fluxes of gaseous and particulate species,and the assessment of the effectiveness of pollution control measures.Additionally,isotopic measurements have provided new insights into the sources and formation processes of particulate matter and reactive nitrogen species.Finally,the paper outlines future directions for tower-based research,emphasizing the need for long-term comprehensive measurements,the development of innovative tower platforms,and integration of emerging technologies.

关 键 词：meteorological tower boundary layer physics aerosol composition vertical distributions formation mechanisms aerosol-boundary interactions 

分 类 号：P402[天文地球—大气物理学与大气环境] P421.3[天文地球—大气科学及气象学]