Impact of urban heat island on inorganic aerosol in the lower free troposphere: a case study in Hangzhou, China
Hanqing Kang,Bin Zhu,Gerrit de Leeuw,Bu Yu,Ronald J. van der A,and Wen Lu
Hanqing Kang
Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, 210044, China
Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disaster, Nanjing University of Information Science and
Technology, Nanjing, 210044, China
Chongqing Institute of Meteorological Sciences, Chongqing Meteorological Bureau, Chongqing, 401147,
China
Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, 210044, China
Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disaster, Nanjing University of Information Science and
Technology, Nanjing, 210044, China
Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, 210044, China
R&D Satellite Observations, KNMI (Royal Netherlands Meteorological Institute), P.O. Box 201, 3730AE De Bilt, the Netherlands
Aerospace Information Research Institute, Chinese Academy of Sciences (AirCAS), Beijing, 100101, China
School of Environment Science and Spatial Informatics, University of Mining and Technology (CUMT), Xuzhou, 221116, China
Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, 210044, China
R&D Satellite Observations, KNMI (Royal Netherlands Meteorological Institute), P.O. Box 201, 3730AE De Bilt, the Netherlands
Wen Lu
Key Laboratory for Aerosol-Cloud-Precipitation of China Meteorological Administration, Nanjing University of Information Science and Technology, Nanjing, 210044, China
Collaborative Innovation Center on Forecast and Evaluation of
Meteorological Disaster, Nanjing University of Information Science and
Technology, Nanjing, 210044, China
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This study quantified the contribution of each urban-induced meteorological effect (temperature, humidity, and circulation) to aerosol concentration. We found that the urban heat island (UHI) circulation dominates the UHI effects on aerosol. The UHI circulation transports aerosol and its precursor gases from the warmer lower boundary layer to the colder lower free troposphere and promotes the secondary formation of ammonium nitrate aerosol in the cold atmosphere.
This study quantified the contribution of each urban-induced meteorological effect (temperature,...
