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Meteorology driving the highest ozone level occurred during mid-spring to early summer in Shanghai, China

文献类型：期刊论文

作者Chang, Luyu1,4; He, Fangfang1,4; Tie, Xuexi2,3,4; Xu, Jianming1,4; Gao, Wei1,4
刊名SCIENCE OF THE TOTAL ENVIRONMENT
出版日期2021-09-01
卷号785页码:14
关键词Weather classification O-3 pollution WRF-Chem model Shanghai
ISSN号0048-9697
DOI10.1016/j.scitotenv.2021.147253
通讯作者He, Fangfang(hff@soweather.com) ; Tie, Xuexi(tiexx@ieecas.cn)
英文摘要More recent studies highlighted the aggravated surface ozone (O-3) pollutions occurred in Spring and Autumn in China, but presenting clear distinctions for different cities. In this study, we observed the most elevated mean daily and maximum daily 8-h (MDA8) O-3 concentrations occurred from mid-Spring to early Summer (April, May and June, AMJ) at both urban and remote sites in Shanghai compared to other warm months (March, July, August, September, October), based on the long-term measurements from 2010 to 2019. The typical weather pattern of G-SW (High pressure with predominant winds of southwesterly) recognized by T-mode principal component approach (T-PCA), exhibits the strongest solar radiation and highest daily maximum temperature relative to other weathers in AMJ, leading to not only the most elevated O-3 concentration, but also the largest O-3 increasing variability in daytime. More importantly, under the G-SW weather condition, the MDA8 O-3 concentration presents the greatest increasing rate at 3.95 ppbv/yr from 2010 to 2019 in Shanghai downtown compared to other weather patterns, suggesting that more occurrence and faster exacerbation of O-3 pollutions could be expected under the G-SW weather condition in the future. To understand and mitigate high O-3 occurrences under the weather pattern of G-SW during AMJ, process analysis by a chemical/dynamical model (WRF-Chem, Weather Research and Forecasting (WRF) model coupled with Chemistry) is conducted to elucidate the strong O-3 productivity (19 ppbv/h in daytime), that dominates the high O-3 occurrence under the G-SW weather condition. Sensitive studies suggest that under the G-SW weather condition, reduction of VOCs emissions is very effective to prevent the high O-3 pollution in Shanghai. The model results show that photochemical productivity decreases by 35% in daytime response to 30% reduction of VOCs emissions, leading to 17.6% mitigation of peak O-3 concentration in Shanghai downtown. This result provides valuable information for the development of emission control strategy in Shanghai under different weather conditions. (C) 2021 Published by Elsevier B.V.
WOS关键词YANGTZE-RIVER DELTA ; SURFACE OZONE ; CLIMATE-CHANGE ; AIR-QUALITY ; POLLUTION ; IMPACT ; MODEL ; O-3 ; CIRCULATION ; PATTERNS
资助项目Ministry of Science and Technology of the People's Republic of China[2019YFC0214605] ; Science and Technology Commission of Shanghai Municipality[19DZ1205003] ; Science and Technology Commission of Shanghai Municipality[21YF1412400]
WOS研究方向Environmental Sciences & Ecology
语种英语
WOS记录号WOS:000659457100012
出版者ELSEVIER
资助机构Ministry of Science and Technology of the People's Republic of China ; Science and Technology Commission of Shanghai Municipality
源URL[http://ir.ieecas.cn/handle/361006/16789]  
专题地球环境研究所_粉尘与环境研究室
通讯作者He, Fangfang; Tie, Xuexi
作者单位1.Shanghai Meteorol Serv, Shanghai Climate Ctr, Shanghai 200030, Peoples R China
2.Chinese Acad Sci, KLACP, SKLLQG, Inst Earth Environm, Xian 710061, Peoples R China
3.Chinese Acad Sci, Ctr Excellence Urban Atmospher Environm, Inst Urban Environm, Xiamen 361021, Peoples R China
4.Shanghai Key Lab Meteorol & Hlth, Shanghai 200030, Peoples R China
推荐引用方式
GB/T 7714		 Chang, Luyu,He, Fangfang,Tie, Xuexi,et al. Meteorology driving the highest ozone level occurred during mid-spring to early summer in Shanghai, China[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,785:14.
APA Chang, Luyu,He, Fangfang,Tie, Xuexi,Xu, Jianming,&Gao, Wei.(2021).Meteorology driving the highest ozone level occurred during mid-spring to early summer in Shanghai, China.SCIENCE OF THE TOTAL ENVIRONMENT,785,14.
MLA Chang, Luyu,et al."Meteorology driving the highest ozone level occurred during mid-spring to early summer in Shanghai, China".SCIENCE OF THE TOTAL ENVIRONMENT 785(2021):14.

入库方式： OAI收割

来源：地球环境研究所

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