Future changes in Beijing haze events under different anthropogenic aerosol emission scenarios

doi:10.5194/acp-21-7499-2021

	Future changes in Beijing haze events under different anthropogenic aerosol emission scenarios
	Zhang, Lixia 3,4; Wilcox, Laura J.5; Dunstone, Nick J.6; Paynter, David J.7; Hu, Shuai 1,3; Bollasina, Massimo 8; Li, Donghuan 2; Shonk, Jonathan K. P.5,9; Zou, Liwei 3
刊名	ATMOSPHERIC CHEMISTRY AND PHYSICS
	2021-05-18
卷号	21 期号:10 页码:7499-7514
ISSN号	1680-7316
DOI	10.5194/acp-21-7499-2021
通讯作者	Zhang, Lixia(lixiazhang@mail.iap.ac.cn)
英文摘要	Air pollution is a major issue in China and one of the largest threats to public health. We investigated future changes in atmospheric circulation patterns associated with haze events in the Beijing region and the severity of haze events during these circulation conditions from 2015 to 2049 under two different aerosol scenarios: a maximum technically feasible aerosol reduction (MTFR) and a current legislation aerosol scenario (CLE). In both cases greenhouse gas emissions follow the Representative Concentration Pathway 4.5 (RCP4.5). Under RCP4.5 with CLE aerosol the frequency of circulation patterns associated with haze events increases due to a weakening of the East Asian winter mon-soon via increased sea level pressure over the North Pacific. The rapid reduction in anthropogenic aerosol and precursor emissions in MTFR further increases the frequency of circulation patterns associated with haze events, due to further increases in the sea level pressure over the North Pacific and a reduction in the intensity of the Siberian high. Even with the aggressive aerosol reductions in MTFR periods of poor visibility, represented by above-normal aerosol optical depth (AOD), still occur in conjunction with haze-favorable atmospheric circulation. However, the winter mean intensity of poor visibility decreases in MTFR, so that haze events are less dangerous in this scenario by 2050 compared to CLE and relative to the current baseline. This study reveals the competing effects of aerosol emission reductions on future haze events through their direct contribution to pollutant source and their influence on the atmospheric circulation. A compound consideration of these two impacts should be taken in future policy making.
资助项目	Ministry of Science and Technology of China[2018YFA0606501] ; National Natural Science Foundation of China[41675076] ; National Natural Science Foundation of China[41830966] ; Newton Fund (UK-China Research & Innovation Partnership Fund through the Met Office Climate Science for Service Partnership -CSSP, China)
WOS关键词	PROJECTED CHANGES ; EASTERN CHINA ; NORTH CHINA ; POLLUTION ; CIRCULATION ; PRECIPITATION ; VARIABILITY ; INCREASES ; TRENDS ; FOG
WOS研究方向	Environmental Sciences & Ecology ; Meteorology & Atmospheric Sciences
语种	英语
出版者	COPERNICUS GESELLSCHAFT MBH
WOS记录号	WOS:000653621700004
资助机构	Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Newton Fund (UK-China Research & Innovation Partnership Fund through the Met Office Climate Science for Service Partnership -CSSP, China)
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/163937]
专题	中国科学院地理科学与资源研究所
通讯作者	Zhang, Lixia
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing, Peoples R China 3.Chinese Acad Sci, Inst Atmospher Phys, LASG, Beijing, Peoples R China 4.Nanjing Univ Informat Sci & Technol, Collaborat Innovat Ctr Forecast & Evaluat Meteoro, Nanjing 210044, Peoples R China 5.Univ Reading, Natl Ctr Atmospher Sci, Dept Meteorol, Reading, Berks, England 6.Met Off Hadley Ctr, FitzRoy Rd, Exeter EX1 3PB, Devon, England 7.NOAA, Geophys Fluid Dynam Lab, Princeton, NJ USA 8.Univ Edinburgh, Sch Geosci, Grant Inst, Edinburgh, Midlothian, Scotland 9.Univ Reading, Dept Meteorol, MetOff Reading, Reading, Berks, England
推荐引用方式 GB/T 7714	Zhang, Lixia,Wilcox, Laura J.,Dunstone, Nick J.,et al. Future changes in Beijing haze events under different anthropogenic aerosol emission scenarios[J]. ATMOSPHERIC CHEMISTRY AND PHYSICS,2021,21(10):7499-7514.
APA	Zhang, Lixia.,Wilcox, Laura J..,Dunstone, Nick J..,Paynter, David J..,Hu, Shuai.,...&Zou, Liwei.(2021).Future changes in Beijing haze events under different anthropogenic aerosol emission scenarios.ATMOSPHERIC CHEMISTRY AND PHYSICS,21(10),7499-7514.
MLA	Zhang, Lixia,et al."Future changes in Beijing haze events under different anthropogenic aerosol emission scenarios".ATMOSPHERIC CHEMISTRY AND PHYSICS 21.10(2021):7499-7514.