Articles | Volume 22, issue 17
https://doi.org/10.5194/acp-22-11409-2022
© Author(s) 2022. 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-22-11409-2022
© Author(s) 2022. This work is distributed under
the Creative Commons Attribution 4.0 License.
the Creative Commons Attribution 4.0 License.
Research article
| 
06 Sep 2022
Research article |
| 06 Sep 2022
| 06 Sep 2022
Regional PM2.5 pollution confined by atmospheric internal boundaries in the North China Plain: boundary layer structures and numerical simulation
Xipeng Jin
College of Environmental Sciences and Engineering, State Key Laboratory of
Environmental Simulation and Pollution Control, Peking University, Beijing
100871, China
Xuhui Cai
CORRESPONDING AUTHOR
College of Environmental Sciences and Engineering, State Key Laboratory of
Environmental Simulation and Pollution Control, Peking University, Beijing
100871, China
Mingyuan Yu
School of Applied Meteorology, Nanjing University of Information
Science and Technology, Nanjing 210044, China
Yu Song
College of Environmental Sciences and Engineering, State Key Laboratory of
Environmental Simulation and Pollution Control, Peking University, Beijing
100871, China
Xuesong Wang
College of Environmental Sciences and Engineering, State Key Laboratory of
Environmental Simulation and Pollution Control, Peking University, Beijing
100871, China
Hongsheng Zhang
Department of Atmospheric and Oceanic Sciences, School of Physics,
Peking University, Beijing 100871, China
College of Environmental Sciences and Engineering, State Key Laboratory of
Environmental Simulation and Pollution Control, Peking University, Beijing
100871, China
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Short summary
Meteorological discontinuities in the vertical direction define the lowest atmosphere as the boundary layer, while in the horizontal direction it identifies the contrast zone as the internal boundary. Both of them determine the polluted air mass dimension over the North China Plain. This study reveals the boundary layer structures under three categories of internal boundaries, modified by thermal, dynamical, and blending effects. It provides a new insight to understand regional pollution.
Meteorological discontinuities in the vertical direction define the lowest atmosphere as the...
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