DOI: 10.1002/2017JD027190
Scopus记录号: 2-s2.0-85040716640
论文题名: Impact of East Asian Summer Monsoon on Surface Ozone Pattern in China
作者: Li S. ; Wang T. ; Huang X. ; Pu X. ; Li M. ; Chen P. ; Yang X.-Q. ; Wang M.
刊名: Journal of Geophysical Research: Atmospheres
ISSN: 2169897X
出版年: 2018
卷: 123, 期: 2 起始页码: 1401
结束页码: 1411
语种: 英语
英文关键词: China
; East Asian Summer Monsoon
; ozone
; RegCM4-Chem
Scopus关键词: annual variation
; climate modeling
; concentration (composition)
; monsoon
; ozone
; regional climate
; spatial distribution
; summer
; troposphere
; China
英文摘要: Tropospheric ozone plays a key role in regional and global atmospheric and climate systems. In East Asia, ozone can be affected both in concentration level and spatial pattern by typical monsoon climate. This paper uses three different indices to identify the strength of East Asian summer monsoon (EASM) and explores the possible impact of EASM intensity on the ozone pattern through synthetic and process analysis. The difference in ozone between three strong and three weak monsoon years was analyzed using the simulations from regional climate model RegCM4-Chem. It was found that EASM intensity can significantly influence the spatial distribution of ozone in the lower troposphere. When EASM is strong, ozone in the eastern part of China (28°N - 42° N) is reduced, but the inverse is detected in the north and south. The surface ozone difference ranges from −7 to 7 ppbv during the 3 months (June to August) of the EASM, with the most obvious difference in August. Difference of the 3 months' average ozone ranges from −3.5 to 4 ppbv. Process analysis shows that the uppermost factor controlling ozone level during summer monsoon seasons is the chemistry process. Interannual variability of EASM can impact the spatial distribution of ozone through wind in the lower troposphere, cloud cover, and downward shortwave radiation, which affect the transport and chemical formation of ozone. The phenomenon should be addressed when considering the interaction between ozone and the climate in East Asia region. ©2018. American Geophysical Union. All Rights Reserved. Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/114637
Appears in Collections: 气候减缓与适应
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作者单位: School of Atmospheric Sciences, CMA-NJU Joint Laboratory for Climate Prediction Studies, Jiangsu Collaborative Innovation Center for Climate Change, Nanjing University, Nanjing, China
Recommended Citation:
Li S.,Wang T.,Huang X.,et al. Impact of East Asian Summer Monsoon on Surface Ozone Pattern in China[J]. Journal of Geophysical Research: Atmospheres,2018-01-01,123(2)