气候变化领域集成服务门户(CCPortal): Competing effects of aerosol reductions and circulation changes for future improvements in Beijing haze

CCPortal

DOI	10.5194/acp-21-15299-2021
	Competing effects of aerosol reductions and circulation changes for future improvements in Beijing haze
	Guo L.; Wilcox L.J.; Bollasina M.; Turnock S.T.; Lund M.T.; Zhang L.
发表日期	2021
ISSN	1680-7316
起始页码	15299
结束页码	15308
卷号	21 期号:19
英文摘要	Despite local emission reductions, severe haze events remain a serious issue in Beijing. Previous studies have suggested that both greenhouse gas increases and aerosol decreases are likely to increase the frequency of weather patterns conducive to haze events. However, the combined effect of atmospheric circulation changes and aerosol and precursor emission changes on Beijing haze remains unclear. We use the Shared Socioeconomic Pathways (SSPs) to explore the effects of aerosol and greenhouse gas emission changes on both haze weather and Beijing haze itself. We confirm that the occurrence of haze weather patterns is likely to increase in future under all SSPs and show that even though aerosol reductions play a small role, greenhouse gas increases are the main driver, especially during the second half of the 21st century. However, the severity of the haze events decreases on decadal timescales by as much as 70% by 2100. The main influence on the haze itself is the reductions in local aerosol emissions, which outweigh the effects of changes in atmospheric circulation patterns. This demonstrates that aerosol reductions are beneficial, despite their influence on the circulation. © 2021 Liang Guo et al.
语种	英语
scopus关键词	aerosol; aerosol composition; atmospheric circulation; future prospect; greenhouse gas; haze; timescale; urban atmosphere; Beijing [Beijing (ADS)]; Beijing [China]; China
来源期刊	ATMOSPHERIC CHEMISTRY AND PHYSICS
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/246505
作者单位	National Centre for Atmospheric Science, Reading, United Kingdom; Department of Meteorology, University of Reading, Reading, United Kingdom; School of Geosciences, Grant Institute, University of Edinburgh, Edinburgh, United Kingdom; Met Office Hadley Centre, Exeter, United Kingdom; Center for International Climate and Environmental Research, Oslo, Norway; State Key Laboratory of Numerical Modeling for Atmospheric Sciences and Geophysical Fluid Dynamics, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, China
推荐引用方式 GB/T 7714	Guo L.,Wilcox L.J.,Bollasina M.,et al. Competing effects of aerosol reductions and circulation changes for future improvements in Beijing haze[J],2021,21(19).
APA	Guo L.,Wilcox L.J.,Bollasina M.,Turnock S.T.,Lund M.T.,&Zhang L..(2021).Competing effects of aerosol reductions and circulation changes for future improvements in Beijing haze.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(19).
MLA	Guo L.,et al."Competing effects of aerosol reductions and circulation changes for future improvements in Beijing haze".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.19(2021).