globalchange  > 气候减缓与适应
DOI: 10.1002/2017JD027501
Scopus记录号: 2-s2.0-85045849573
论文题名:
Modeling Impacts of Urbanization and Urban Heat Island Mitigation on Boundary Layer Meteorology and Air Quality in Beijing Under Different Weather Conditions
作者: Chen L.; Zhang M.; Zhu J.; Wang Y.; Skorokhod A.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期:8
起始页码: 4323
结束页码: 4344
语种: 英语
英文关键词: air quality ; heat waves ; polluted days ; UHI mitigation ; urbanization
Scopus关键词: air quality ; atmospheric pollution ; boundary layer ; climate conditions ; climate modeling ; heat island ; heat wave ; particulate matter ; relative humidity ; seasonal variation ; urbanization ; Beijing [China] ; China
英文摘要: Beijing has experienced a rapid urbanization in the last few decades and has been suffering from serious air pollution during recent years. The Weather Research and Forecasting-Chem model is used to quantify the effects of urbanization on regional climate and air quality and those of urban heat island (UHI) mitigation strategy on urban air quality in Beijing, with a special focus on the impacts under different weather conditions (heat waves in summer and polluted days in winter). The modification of rural land use into urban impervious surface significantly increases 2-m temperature (T2) and planetary boundary layer height but decreases 2-m relative humidity (RH2) and 10-m wind speed (WS10) in urban Beijing, which further leads to the increases in surface-layer O3 concentrations of 9.5 ppbv in summer and 1.8 ppbv in winter and the decreases in PM2.5 concentrations of 16.6 μg m−3 in summer and 26.2 μg m−3 in winter. Compared with normal days (clean days), the UHI intensity is enhanced by 11.1% during heat waves in summer (by 16.7% during polluted days in winter). Although increasing urban albedo is an effective mitigation strategy to decrease UHI intensity, it worsens the urban air quality. When the urban albedo increases from 0.2 to 0.85, the daily average PM2.5 concentrations are increased by 10.2 (6.1) μg m−3 in summer (in winter), and the daily maximum O3 concentrations are increased by 12.8 ppbv under heat waves in summer. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114058
Appears in Collections:气候减缓与适应

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作者单位: State Key Laboratory of Atmospheric Boundary Layer Physics and Atmospheric Chemistry, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China; University of Chinese Academy of Sciences, Beijing, China; Center for Excellence in Urban Atmospheric Environment, Institute of Urban Environment, Chinese Academy of Sciences, Xiamen, China; Research Institute of Climatic and Environmental Governance, Nanjing University of Information Science and Technology, Nanjing, China; Yale-NUIST Center on Atmospheric Environment, Nanjing University of Information Science and Technology, Nanjing, China; School of Atmospheric Physics, Nanjing University of Information Science and Technology, Nanjing, China; Laboratory of Atmospheric Gas Species, A.M. Obukhov Institute of Atmospheric Physics, Russian Academy of Sciences, Moscow, Russian Federation

Recommended Citation:
Chen L.,Zhang M.,Zhu J.,et al. Modeling Impacts of Urbanization and Urban Heat Island Mitigation on Boundary Layer Meteorology and Air Quality in Beijing Under Different Weather Conditions[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(8)
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