气候变化领域集成服务门户(CCPortal): Substantial ozone enhancement over the North China Plain from increased biogenic emissions due to heat waves and land cover in summer 2017

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DOI	10.5194/acp-19-12195-2019
	Substantial ozone enhancement over the North China Plain from increased biogenic emissions due to heat waves and land cover in summer 2017
	Ma M.; Gao Y.; Wang Y.; Zhang S.; Ruby Leung L.; Liu C.; Wang S.; Zhao B.; Chang X.; Su H.; Zhang T.; Sheng L.; Yao X.; Gao H.
发表日期	2019
ISSN	16807316
起始页码	12195
结束页码	12207
卷号	19 期号:19
英文摘要	In the summer of 2017, heavy ozone pollution swamped most of the North China Plain (NCP), with the maximum regional average of daily maximum 8 h ozone concentration (MDA8) reaching almost 120 ppbv. In light of the continuing reduction of anthropogenic emissions in China, the underlying mechanisms for the occurrences of these regional extreme ozone episodes are elucidated from two perspectives: meteorology and biogenic emissions. The significant positive correlation between MDA8 ozone and temperature, which is amplified during heat waves concomitant with stagnant air and no precipitation, supports the crucial role of meteorology in driving high ozone concentrations. We also find that biogenic emissions are enhanced due to factors previously not considered. During the heavy ozone pollution episodes in June 2017, biogenic emissions driven by high vapor pressure deficit (VPD), land cover change and urban landscape yield an extra mean MDA8 ozone of 3.08, 2.79 and 4.74 ppbv, respectively, over the NCP, which together contribute as much to MDA8 ozone as biogenic emissions simulated using the land cover of 2003 and ignoring VPD and urban landscape. In Beijing, the biogenic emission increase due to urban landscape has a comparable effect on MDA8 ozone to the combined effect of high VPD and land cover change between 2003 and 2016. In light of the large effect of urban landscape on biogenic emission and the subsequent ozone formation, the types of trees may be cautiously selected to take into account of the biogenic volatile organic compound (BVOC) emission during the afforestation of cities. This study highlights the vital contributions of heat waves, land cover change and urbanization to the occurrence of extreme ozone episodes, with significant implications for ozone pollution control in a future when heat wave frequency and intensity are projected to increase under global warming. © 2019 Author(s).
语种	英语
scopus关键词	anthropogenic source; biogenic emission; concentration (composition); heat wave; land cover; ozone; pollution control; summer; urbanization; China; North China Plain
来源期刊	Atmospheric Chemistry and Physics
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/144120
作者单位	Key Laboratory of Marine Environment and Ecology, Ministry of Education, Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, China; Qingdao National Laboratory for Marine Science and Technology, Qingdao, 266237, China; School of Earth and Atmospheric Sciences, Georgia Institute of Technology, Atlanta, GA 30332, United States; Key Laboratory of Physical Oceanography, Ministry of Education, Institute for Advanced Ocean Study, Ocean University of China, Qingdao, 266100, China; International Laboratory for High-Resolution Earth System Prediction (IHESP), Qingdao, 266237, China; College of Oceanic and Atmospheric Sciences, Ocean University of China, Qingdao, 266100, China; Atmospheric Sciences and Global Change Division, Pacific Northwest National Laboratory, Richland, WA 99354, United States; Key Lab of Environmental Optics and Technology, Anhui Institute of Optics and Fine Mechanics, Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, 230031, China; School ...
推荐引用方式 GB/T 7714	Ma M.,Gao Y.,Wang Y.,et al. Substantial ozone enhancement over the North China Plain from increased biogenic emissions due to heat waves and land cover in summer 2017[J],2019,19(19).
APA	Ma M..,Gao Y..,Wang Y..,Zhang S..,Ruby Leung L..,...&Gao H..(2019).Substantial ozone enhancement over the North China Plain from increased biogenic emissions due to heat waves and land cover in summer 2017.Atmospheric Chemistry and Physics,19(19).
MLA	Ma M.,et al."Substantial ozone enhancement over the North China Plain from increased biogenic emissions due to heat waves and land cover in summer 2017".Atmospheric Chemistry and Physics 19.19(2019).