气候变化领域集成服务门户(CCPortal): Emergence of Southern Hemisphere stratospheric circulation changes in response to ozone recovery

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DOI	10.1038/s41561-021-00803-3
	Emergence of Southern Hemisphere stratospheric circulation changes in response to ozone recovery
	Zambri B.; Solomon S.; Thompson D.W.J.; Fu Q.
发表日期	2021
ISSN	1752-0894
卷号	14 期号:9
英文摘要	Depletion of stratospheric ozone in the Southern Hemisphere (SH) during the late twentieth century cooled local air temperature, which resulted in stronger stratospheric westerly winds near 60° S and altered SH surface climate. However, Antarctic ozone has been recovering since around 2001 thanks to the implementation of the Montreal Protocol, which banned production and consumption of ozone-depleting substances. Here we show that the post-2001 increase in ozone has resulted in significant changes to trends in SH temperature and circulation. The trends are generally of opposite sign to those that resulted from stratospheric ozone losses, including a warming of the SH polar lower stratosphere and a weakening of the SH stratospheric polar vortex. Observed post-2001 trends of temperature and circulation in the stratosphere are about 50–75% smaller in magnitude than the trends during the ozone depletion era. The response is broadly consistent with expectations based on modelled depletion-era trends and variability of both ozone and reactive chlorine. The differences in observed stratospheric trends between the recovery and depletion periods are statistically significant (P < 0.05), providing evidence for the emergence of dynamical impacts of the healing of the Antarctic ozone hole. © 2021, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	air temperature; atmospheric circulation; ozone; polar vortex; Southern Hemisphere; stratosphere; temperature effect
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250871
作者单位	Department of Earth, Atmospheric, and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, United States; Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; Department of Atmospheric Sciences, University of Washington, Seattle, WA, United States
推荐引用方式 GB/T 7714	Zambri B.,Solomon S.,Thompson D.W.J.,et al. Emergence of Southern Hemisphere stratospheric circulation changes in response to ozone recovery[J],2021,14(9).
APA	Zambri B.,Solomon S.,Thompson D.W.J.,&Fu Q..(2021).Emergence of Southern Hemisphere stratospheric circulation changes in response to ozone recovery.Nature Geoscience,14(9).
MLA	Zambri B.,et al."Emergence of Southern Hemisphere stratospheric circulation changes in response to ozone recovery".Nature Geoscience 14.9(2021).