期刊
GEOPHYSICAL RESEARCH LETTERS
卷 43, 期 6, 页码 2873-2879出版社
AMER GEOPHYSICAL UNION
DOI: 10.1002/2016GL067745
关键词
planetary boundary layer; feedback; radiative forcing; air pollution
资金
- NSFC [D0512/41422504, D0512/91544231]
- Jiangsu Provincial Science Fund [BK20140021]
- Academy of Finland via Center of Excellence in Atmospheric Sciences [272041]
- European Commission
- Airbus
- Airlines (Lufthansa etc.)
Aerosol-planetary boundary layer (PBL) interactions have been found to enhance air pollution in megacities in China. We show that black carbon (BC) aerosols play the key role in modifying the PBL meteorology and hence enhancing the haze pollution. With model simulations and data analysis from various field observations in December 2013, we demonstrate that BC induces heating in the PBL, particularly in the upper PBL, and the resulting decreased surface heat flux substantially depresses the development of PBL and consequently enhances the occurrences of extreme haze pollution episodes. We define this process as the dome effect of BC and suggest an urgent need for reducing BC emissions as an efficient way to mitigate the extreme haze pollution in megacities of China.
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