Articles | Volume 26, issue 21
https://doi.org/10.5194/acp-26-15523-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
https://doi.org/10.5194/acp-26-15523-2026
© Author(s) 2026. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Impacts of synoptic circulation types on nocturnal ozone increase in the North China Plain: meteorological drivers and physical mechanisms
Huanpeng Wang
School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
National Engineering Laboratory for Volatile Organic Compounds Pollution Control Technology and Equipment, Guangzhou, 510006, China
Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510006, China
Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal, Guangzhou, 510006, China
Xuejiao Deng
Key Laboratory of Regional Numerical Weather Prediction, Guangzhou Institute of Tropical and Marine Meteorology, China Meteorological Administration, Guangzhou, 510680, China
Haomin Huang
School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
National Engineering Laboratory for Volatile Organic Compounds Pollution Control Technology and Equipment, Guangzhou, 510006, China
Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510006, China
Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal, Guangzhou, 510006, China
Daiqi Ye
School of Environment and Energy, South China University of Technology, Guangzhou, 510006, China
National Engineering Laboratory for Volatile Organic Compounds Pollution Control Technology and Equipment, Guangzhou, 510006, China
Guangdong Provincial Key Laboratory of Atmospheric Environment and Pollution Control, Guangzhou, 510006, China
Guangdong Provincial Engineering and Technology Research Centre for Environmental Risk Prevention and Emergency Disposal, Guangzhou, 510006, China
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Short summary
This study investigates how weather types drive nocturnal ozone increase. We resolve four primary weather types in the North China Plain: A-type (57.89 %), S-type (19.88 %), WNE-type (14.04 %), and C-type (8.19 %). Driven by these weather systems, high-pressure subsidence (A-type), cold pool subsidence and shallow convection (C-type), synoptically-driven wind shear (S-type and WNE-type) act as key drivers, facilitating the intrusion of ozone-rich air to the surface.
This study investigates how weather types drive nocturnal ozone increase. We resolve four...
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