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The impact of Climate Change on the Western Pacific Subtropical High and the related ozone pollution in Shanghai, China

文献类型：期刊论文

作者Chang, Luyu1,2,6; Xu, Jianming2,5,6; Tie, Xuexi2,3,4; Gao, Wei2,6
刊名SCIENTIFIC REPORTS
出版日期2019-11-18
卷号9页码:12
ISSN号2045-2322
DOI10.1038/s41598-019-53103-7
通讯作者Xu, Jianming(metxujm@163.com) ; Tie, Xuexi(tiexx@ieecas.cn)
英文摘要Severe ozone (O-3) episodes occur frequently in Shanghai during late-summers. We define geopotential height averaged over the key area region (122.5 degrees E-135 degrees E, 27.5 degrees N -35 degrees N) at 500 hPa as a WPSH_SHO3 index which has high positive correlation with surface O-3 concentration in Shanghai. In addition, the index has a significant long-term increasing trend during the recent 60 years. Analysis shows the meteorological conditions under the strong WPSH_SHO3 climate background (compared to the weak background) have several important anomalies: (1) A strong WPSH center occurs over the key area region. (2)The cloud cover is less, resulting in high solar radiation and low humidity, enhancing the photochemical reactions of O-3. (3) The near-surface southwesterly winds are more frequent, enhancing the transport of upwind pollutants and O-3 precursors from polluted regions to Shanghai and producing higher O-3 chemical productions. This study suggests that the global climate change could lead to a stronger WPSH in the key region, enhancing ozone pollution in Shanghai. A global chemical/transport model (MOZART-4) is applied to show that the O-3 concentrations can be 30 ppbv higher under a strong WPSH_SHO3 condition than a weak condition, indicating the important effect of the global climate change on local air pollution in Shanghai.
WOS关键词YANGTZE-RIVER DELTA ; AIR-POLLUTION ; EASTERN CHINA ; VARIABILITY ; SUMMERTIME ; O-3 ; SENSITIVITY ; PATTERNS ; REGION ; CITY
资助项目Ministry of Science and Technology of China[2018YFC0213800] ; National Natural Science Foundation of China[91644223] ; National Natural Science Foundation of China[41430424] ; Science and Technology Research and Development project of Shanghai meteorological service[MS201807] ; Shanghai Sailing Program[18YF1421200]
WOS研究方向Science & Technology - Other Topics
语种英语
WOS记录号WOS:000496921300001
出版者NATURE PUBLISHING GROUP
资助机构Ministry of Science and Technology of China ; National Natural Science Foundation of China ; Science and Technology Research and Development project of Shanghai meteorological service ; Shanghai Sailing Program
源URL[http://ir.ieecas.cn/handle/361006/12848]  
专题地球环境研究所_粉尘与环境研究室
通讯作者Xu, Jianming; Tie, Xuexi
作者单位1.Fudan Univ, Dept Atmospher & Ocean Sci, Shanghai 200438, Peoples R China
2.Shanghai Key Lab Meteorol & Hlth, Shanghai 200030, Peoples R China
3.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Sci & Technol, SKLLQG, Xian, Shaanxi, Peoples R China
4.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Fujian, Peoples R China
5.Anhui Prov Key Lab Atmospher Sci & Satellite Remo, Hefei 230000, Anhui, Peoples R China
6.Shanghai Typhoon Inst, Shanghai Meteorol Serv, Shanghai 200030, Peoples R China
推荐引用方式
GB/T 7714		 Chang, Luyu,Xu, Jianming,Tie, Xuexi,et al. The impact of Climate Change on the Western Pacific Subtropical High and the related ozone pollution in Shanghai, China[J]. SCIENTIFIC REPORTS,2019,9:12.
APA Chang, Luyu,Xu, Jianming,Tie, Xuexi,&Gao, Wei.(2019).The impact of Climate Change on the Western Pacific Subtropical High and the related ozone pollution in Shanghai, China.SCIENTIFIC REPORTS,9,12.
MLA Chang, Luyu,et al."The impact of Climate Change on the Western Pacific Subtropical High and the related ozone pollution in Shanghai, China".SCIENTIFIC REPORTS 9(2019):12.

入库方式： OAI收割

来源：地球环境研究所

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