Impact of synoptic patterns and meteorological elements on the wintertime haze in the Beijing-Tianjin-Hebei region, China from 2013 to 2017

doi:10.1016/j.scitotenv.2019.135210

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 粉尘与环境研究室

	Impact of synoptic patterns and meteorological elements on the wintertime haze in the Beijing-Tianjin-Hebei region, China from 2013 to 2017
	Bei, Naifang 1,3; Li, Xiaopei 2,3; Tie, Xuexi 1; Zhao, Linna 4; Wu, Jiarui 1; Li, Xia 1; Liu, Lang 1; Shen, Zhenxing 3; Li, Guohui 1,5
刊名	SCIENCE OF THE TOTAL ENVIRONMENT
	2020-02-20
卷号	704 页码:12
关键词	Synoptic situations PM2.5 BTH
ISSN号	0048-9697
DOI	10.1016/j.scitotenv.2019.135210
通讯作者	Li, Guohui(ligh@ieecas.cn)
英文摘要	Meteorological conditions play a key role in formation of air pollution, determining dispersion or accumulation of air pollutants. Aggressive emission mitigation measures have been taken recently in the Beijing-Tianjin-Hebei region (BTH), China, but pervasive and persistent haze still frequently engulfs this region during wintertime. Occurrence frequency of unfavorable meteorological conditions in winter is anticipated to constitute a significantly important factor in driving the heavy haze formation in BTH. Large scale synoptic patterns influencing BTH during the wintertime from 2013 to 2017 are categorized into six types, including "north-low", "southwest-trough", "southeast-high", "southeast-trough", "transition", and "inland-high" using the NCEP reanalysis data. "Southwest-trough" and "southeast-high" are defined as favorable synoptic patterns and the remaining four categories are unfavorable ones based on FLEXPART simulations. Compared to measurements of fine particulate matter (PM2.5) in BTH, favorable synoptic conditions generally correspond to the low level or decreasing trend of PM2.5 concentrations while under unfavorable conditions PM2.5 concentrations are high or increasing. Occurrence of wintertime haze episodes in BTH correlates well with the evolution trend of unfavorable synoptic patterns from 2013 to 2017 although the anthropogenic emissions have substantially decreased. PM2.5 concentrations also exhibit correlations with local meteorological elements, including winds, temperature, and relative humidity, which are ultimately steered by large scale synoptic situations. The WRF-Chem model simulations further reveal the critical role of large-scale synoptic patterns in the heavy haze formation. Overall, under unfavorable synoptic situations, emission mitigation is the best choice to improve the air quality in BTH. (C) 2019 Elsevier B.V. All rights reserved.
资助项目	National Natural Science Foundation of China[41275101] ; National Natural Science Foundation of China[41430424] ; Fundamental Research Funds for the Central Universities of China ; National Key R&D Plan (Quantitative Relationship and Regulation Principle between Regional Oxidation Capacity of Atmospheric and Air Quality)[2017YFC0210000] ; National Research Program for Key Issues in Air Pollution Control[DQGG0105]
WOS关键词	AIR-POLLUTION ; MEXICO-CITY ; GUANZHONG BASIN ; CIRCULATION PATTERNS ; SEA-LAND ; MODEL ; EPISODE ; BTH ; PHOTOCHEMISTRY ; EMISSIONS
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000504672800075
资助机构	National Natural Science Foundation of China ; Fundamental Research Funds for the Central Universities of China ; National Key R&D Plan (Quantitative Relationship and Regulation Principle between Regional Oxidation Capacity of Atmospheric and Air Quality) ; National Research Program for Key Issues in Air Pollution Control
内容类型	期刊论文
源URL	[http://ir.ieecas.cn/handle/361006/13116]
专题	地球环境研究所_粉尘与环境研究室第四纪科学与全球变化卓越创新中心
通讯作者	Li, Guohui
作者单位	1.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Chem & Phys, SKLLQG, Xian, Shaanxi, Peoples R China 2.Jiangsu XCMG Construct Machinery Res Inst Ltd, Xuzhou, Jiangsu, Peoples R China 3.Xi An Jiao Tong Univ, Sch Human Settlements & Civil Engn, Xian, Shaanxi, Peoples R China 4.Chinese Acad Meteorol Sci, State Key Lab Severe Weather, Beijing, Peoples R China 5.CAS Ctr Excellence Quaternary Sci & Global Change, Xian, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Bei, Naifang,Li, Xiaopei,Tie, Xuexi,et al. Impact of synoptic patterns and meteorological elements on the wintertime haze in the Beijing-Tianjin-Hebei region, China from 2013 to 2017[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2020,704:12.
APA	Bei, Naifang.,Li, Xiaopei.,Tie, Xuexi.,Zhao, Linna.,Wu, Jiarui.,...&Li, Guohui.(2020).Impact of synoptic patterns and meteorological elements on the wintertime haze in the Beijing-Tianjin-Hebei region, China from 2013 to 2017.SCIENCE OF THE TOTAL ENVIRONMENT,704,12.
MLA	Bei, Naifang,et al."Impact of synoptic patterns and meteorological elements on the wintertime haze in the Beijing-Tianjin-Hebei region, China from 2013 to 2017".SCIENCE OF THE TOTAL ENVIRONMENT 704(2020):12.