气候变化领域集成服务门户(CCPortal): Emergence of ozone recovery evidenced by reduction in the occurrence of Antarctic ozone loss saturation

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DOI	10.1038/s41612-018-0052-6
	Emergence of ozone recovery evidenced by reduction in the occurrence of Antarctic ozone loss saturation
	Kuttippurath J.; Kumar P.; Nair P.J.; Pandey P.C.
发表日期	2018
ISSN	23973722
卷号	1 期号:1
英文摘要	Industrial emissions of ozone depleting substances (ODSs) during the second half of the twentieth century have led to one of the most visible human impacts on the Earth: the Antarctic ozone hole. The ozone loss intensified in the 1980s and reached the level of saturation (i.e., complete loss of ozone) due to the high levels of ODSs in the atmosphere. Significant changes in the southern hemispheric climate have been observed in the past decades due to this unprecedented ozone loss. Although the most recent studies suggest healing in the Antarctic ozone hole, the status of ozone in the loss saturation layer (~13–21 km) has not been discussed in detail. Here, a comprehensive analysis of vertical, spatial and temporal evolution of ozone loss saturation (ozone mixing ratio ≤ 0.1 ppmv) in the Antarctic vortex using high resolution measurements for the 1979–2017 period reveals that the loss saturation began in 1987 and continued to occur in all winters thereafter, except in the major warming winters of 1988 and 2002. However, our analysis shows a clear reduction in the frequency of occurrence of ozone loss saturation over the period 2001–2017 consistently throughout various datasets (e.g., ozonesonde and satellite measurements of ozone profiles and total columns), thereby revealing the emergence of an important milestone in ozone recovery. © 2018, The Author(s).
语种	英语
scopus关键词	anthropogenic effect; ozone; ozone depletion; reduction; warming
来源期刊	npj Climate and Atmospheric Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/178153
作者单位	CORAL, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India
推荐引用方式 GB/T 7714	Kuttippurath J.,Kumar P.,Nair P.J.,et al. Emergence of ozone recovery evidenced by reduction in the occurrence of Antarctic ozone loss saturation[J],2018,1(1).
APA	Kuttippurath J.,Kumar P.,Nair P.J.,&Pandey P.C..(2018).Emergence of ozone recovery evidenced by reduction in the occurrence of Antarctic ozone loss saturation.npj Climate and Atmospheric Science,1(1).
MLA	Kuttippurath J.,et al."Emergence of ozone recovery evidenced by reduction in the occurrence of Antarctic ozone loss saturation".npj Climate and Atmospheric Science 1.1(2018).