气候变化领域集成服务门户(CCPortal): Impact of polar ozone depletion on subtropical precipitation

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DOI	10.1126/science.1202131
	Impact of polar ozone depletion on subtropical precipitation
	Kang S.M.; Polvani L.M.; Fyfe J.C.; Sigmond M.
发表日期	2011
ISSN	0036-8075
起始页码	951
结束页码	954
卷号	332 期号:6032
英文摘要	Over the past half-century, the ozone hole has caused a poleward shift of the extratropical westerly jet in the Southern Hemisphere. Here, we argue that these extratropical circulation changes, resulting from ozone depletion, have substantially contributed to subtropical precipitation changes. Specifically, we show that precipitation in the southern subtropics in austral summer increases significantly when climate models are integrated with reduced polar ozone concentrations. Furthermore, the observed patterns of subtropical precipitation change, from 1979 to 2000, are very similar to those in our model integrations, where ozone depletion alone is prescribed. In both climate models and observations, the subtropical moistening is linked to a poleward shift of the extratropical westerly jet. Our results highlight the importance of polar regions for the subtropical hydrological cycle.
英文关键词	ozone; atmospheric chemistry; climate modeling; extratropical environment; ozone; polar meteorology; precipitation (climatology); Southern Hemisphere; subtropical region; westerly; article; atmospheric moisture; climate; hemisphere; precipitation; priority journal; summer; tropic climate
语种	英语
来源期刊	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/244213
作者单位	Department of Applied Physics and Applied Mathematics, Columbia University, NewYork, NY, United States; Department of Earth and Environmental Sciences, Columbia University, New York, NY, United States; Canadian Centre for Climate Modelling and Analysis, Environment Canada, Victoria, BC, Canada; Department of Physics, University of Toronto, Toronto, ON, Canada
推荐引用方式 GB/T 7714	Kang S.M.,Polvani L.M.,Fyfe J.C.,et al. Impact of polar ozone depletion on subtropical precipitation[J],2011,332(6032).
APA	Kang S.M.,Polvani L.M.,Fyfe J.C.,&Sigmond M..(2011).Impact of polar ozone depletion on subtropical precipitation.Science,332(6032).
MLA	Kang S.M.,et al."Impact of polar ozone depletion on subtropical precipitation".Science 332.6032(2011).