Mixing-layer-height-referenced ozone vertical distribution in the lower troposphere of Chinese megacities: stratification, classification, and meteorological and photochemical mechanisms
Zhiheng Liao,Meng Gao,Jinqiang Zhang,Jiaren Sun,Jiannong Quan,Xingcan Jia,Yubing Pan,and Shaojia Fan
Zhiheng Liao
Institute of Urban Meteorology, China Meteorological Administration, Beijing, China
School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, China
Department of Geography, Hong Kong Baptist University, Hong Kong SAR, China
Jinqiang Zhang
Key Laboratory of Middle Atmosphere and Global Environment Observation, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
College of Earth and Planetary Sciences, University of Chinese Academy of Sciences, Beijing 100049, China
Jiaren Sun
Key Laboratory of Urban Ecological Environmental Simulation and Protection of Ministry of Environmental Protection, South China Institute of Environmental Sciences, Ministry of Ecology and Environment of the PRC, Guangzhou, China
School of Atmospheric Sciences, Sun Yat-Sen University, Zhuhai, China
Guangdong Provincial Observation and Research Station for Climate Environment and Air Quality Change in the Pearl River Estuary, Key Laboratory of Tropical Atmosphere–Ocean System, Ministry of Education, Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai), Zhuhai, China
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Total article views: 2,888 (including HTML, PDF, and XML)
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Total article views: 2,357 (including HTML, PDF, and XML)
Thereof 2,332 with geography defined
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Total article views: 531 (including HTML, PDF, and XML)
Thereof 525 with geography defined
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This study collected 1897 ozonesondes from two Chinese megacities (Beijing and Hong Kong) in 2000–2022 to investigate the climatological vertical heterogeneity of lower-tropospheric ozone distribution with a mixing-layer-height-referenced (h-referenced) vertical coordinate system. This vertical coordinate system highlighted O3 stratification features existing at the mixing layer–free troposphere interface and provided a better understanding of O3 pollution in urban regions.
This study collected 1897 ozonesondes from two Chinese megacities (Beijing and Hong Kong) in...