气候变化领域集成服务门户(CCPortal): Projection of weather potential for winter haze episodes in Beijing by 1.5 °C and 2.0 °C global warming

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DOI	10.1016/j.accre.2020.09.002
	Projection of weather potential for winter haze episodes in Beijing by 1.5 °C and 2.0 °C global warming
	Qiu L.; Yue X.; Hua W.; Lei Y.-D.
发表日期	2020
ISSN	1674-9278
起始页码	218
结束页码	226
卷号	11 期号:3
英文摘要	Haze episodes become very frequent in Beijing over the past decade, and such trend is related to favorable weather conditions. Here, we project the changes of weather conditions conducive to winter haze episodes in Beijing by 1.5 °C and 2.0 °C global warming using Haze Weather Index (HWI) and data of ensemble simulations from the Community Earth System Model (CESM) low-warming experiment. Compared to present day (2006–2015), the frequency in winter season is projected to increase by 14% for regular haze episodes (HWI > 0) and 21% for severe haze episodes (HWI > 1) at the 1.5 °C global warming. Projections shows larger increases of 27% for regular and 18% for severe haze events at the 2 °C global warming. The additional warming of 0.5 °C largely enhances the persistence of weather conditions conducive to haze episodes. The increased temperature contrast between near-surface and mid-troposphere in eastern Asia accounts for 57% and 81% of the change in HWI by 1.5 °C and 2 °C warming, respectively. Considering increased haze weather potential caused by climate warming, we suggest that additional efforts in emission reductions of carbon dioxide and air pollution are necessary to mitigate haze episodes in Beijing. © 2020 National Climate Center (China Meteorological Administration)
语种	英语
来源期刊	Advances in Climate Change Research
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/168723
作者单位	School of Atmospheric Sciences, Chengdu University of Information and Technology, Chengdu, 610225, China; Jiangsu Key Laboratory of Atmospheric Environment Monitoring and Pollution Control, Collaborative Innovation Center of Atmospheric Environment and Equipment Technology, School of Environment Science and Engineering, Nanjing University of Information Science & Technology, Nanjing, 210044, China; Climate Change Research Center, Institute of Atmospheric Physics, Chinese Academy of Sciences, Beijing, 100029, China; University of Chinese Academy of Sciences, Beijing, 100049, China
推荐引用方式 GB/T 7714	Qiu L.,Yue X.,Hua W.,et al. Projection of weather potential for winter haze episodes in Beijing by 1.5 °C and 2.0 °C global warming[J],2020,11(3).
APA	Qiu L.,Yue X.,Hua W.,&Lei Y.-D..(2020).Projection of weather potential for winter haze episodes in Beijing by 1.5 °C and 2.0 °C global warming.Advances in Climate Change Research,11(3).
MLA	Qiu L.,et al."Projection of weather potential for winter haze episodes in Beijing by 1.5 °C and 2.0 °C global warming".Advances in Climate Change Research 11.3(2020).