The impact of Climate Change on the Western Pacific Subtropical High and the related ozone pollution in Shanghai, China | |
Chang, Luyu1,2,3; Xu, Jianming2,3,6; Tie, Xuexi3,4,5; Gao, Wei2,3 | |
通讯作者 | Xu, Jianming(metxujm@163.com) ; Tie, Xuexi(tiexx@ieecas.cn) |
2019-11-18 | |
发表期刊 | SCIENTIFIC REPORTS |
ISSN | 2045-2322 |
卷号 | 9页码:12 |
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. |
DOI | 10.1038/s41598-019-53103-7 |
关键词[WOS] | YANGTZE-RIVER DELTA ; AIR-POLLUTION ; EASTERN CHINA ; VARIABILITY ; SUMMERTIME ; O-3 ; SENSITIVITY ; PATTERNS ; REGION ; CITY |
收录类别 | SCI ; SCI |
语种 | 英语 |
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 |
项目资助者 | 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 |
WOS类目 | Multidisciplinary Sciences |
WOS记录号 | WOS:000496921300001 |
出版者 | NATURE PUBLISHING GROUP |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.ieecas.cn/handle/361006/12848 |
专题 | 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 Typhoon Inst, Shanghai Meteorol Serv, Shanghai 200030, Peoples R China 3.Shanghai Key Lab Meteorol & Hlth, Shanghai 200030, Peoples R China 4.Chinese Acad Sci, Inst Earth Environm, Key Lab Aerosol Sci & Technol, SKLLQG, Xian, Shaanxi, Peoples R China 5.Chinese Acad Sci, Ctr Excellence Reg Atmospher Environm, Xiamen 361021, Fujian, Peoples R China 6.Anhui Prov Key Lab Atmospher Sci & Satellite Remo, Hefei 230000, Anhui, 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. |
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