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

doi:10.1038/s41598-019-53103-7

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

	The impact of Climate Change on the Western Pacific Subtropical High and the related ozone pollution in Shanghai, China
	Chang, Luyu 2,3,4; Xu, Jianming 2,4,5; Tie, Xuexi 1,2,6; Gao, Wei 2,4
刊名	SCIENTIFIC REPORTS
	2019-11-18
卷号	9 页码:12
ISSN号	2045-2322
DOI	10.1038/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.
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关键词	YANGTZE-RIVER DELTA ; AIR-POLLUTION ; EASTERN CHINA ; VARIABILITY ; SUMMERTIME ; O-3 ; SENSITIVITY ; PATTERNS ; REGION ; CITY
WOS研究方向	Science & Technology - Other Topics
语种	英语
出版者	NATURE PUBLISHING GROUP
WOS记录号	WOS:000496921300001
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
内容类型	期刊论文
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.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Fujian, Peoples R China 2.Shanghai Key Lab Meteorol & Hlth, Shanghai 200030, Peoples R China 3.Fudan Univ, Dept Atmospher & Ocean Sci, Shanghai 200438, Peoples R China 4.Shanghai Typhoon Inst, Shanghai Meteorol Serv, Shanghai 200030, Peoples R China 5.Anhui Prov Key Lab Atmospher Sci & Satellite Remo, Hefei 230000, Anhui, Peoples R China 6.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Sci & Technol, SKLLQG, Xian, Shaanxi, 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.