气候变化领域集成服务门户(CCPortal): The Southern Annular Mode: Variability; trends; and climate impacts across the Southern Hemisphere

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DOI	10.1002/wcc.652
	The Southern Annular Mode: Variability; trends; and climate impacts across the Southern Hemisphere
	Fogt R.L.; Marshall G.J.
发表日期	2020
ISSN	1757-7780
卷号	11 期号:4
英文摘要	The Southern Annular Mode (SAM) is the leading mode of extratropical Southern Hemisphere climate variability, associated with changes in the strength and position of the polar jet around Antarctica. This variability in the polar jet drives large fluctuations in the Southern Hemisphere climate, from the lower stratosphere into the troposphere, and stretching from the midlatitudes across the Southern Ocean to Antarctica. Notably, the SAM index has displayed marked positive trends in the austral summer season (stronger and poleward shifted westerlies), associated with stratospheric ozone loss. Historical reconstructions demonstrate that these recent positive SAM index values are unprecedented in the last millennia, and fall outside the range of natural climate variability. Despite these advances in the understanding of the SAM behavior, several areas of active research are identified that highlight gaps in our present knowledge. This article is categorized under: Paleoclimates and Current Trends > Earth System Behavior. © 2020 Wiley Periodicals LLC.
英文关键词	Antarctica; climate variability; ozone depletion; Southern Annular Mode
语种	英语
scopus关键词	Ozone layer; Austral summers; Climate variability; Historical reconstruction; Lower stratosphere; Natural climate variabilities; Southern Annular Mode; Southern Hemisphere; Stratospheric ozone; Climatology; climate change; climate effect; climate variation; Southern Hemisphere; stratosphere; trend analysis; troposphere; Antarctica
来源期刊	Wiley Interdisciplinary Reviews: Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/142281
作者单位	Department of Geography and Scalia Laboratory for Atmospheric Analysis, Ohio University, Athens, OH, United States; British Antarctic Survey, Cambridge, United Kingdom
推荐引用方式 GB/T 7714	Fogt R.L.,Marshall G.J.. The Southern Annular Mode: Variability; trends; and climate impacts across the Southern Hemisphere[J],2020,11(4).
APA	Fogt R.L.,&Marshall G.J..(2020).The Southern Annular Mode: Variability; trends; and climate impacts across the Southern Hemisphere.Wiley Interdisciplinary Reviews: Climate Change,11(4).
MLA	Fogt R.L.,et al."The Southern Annular Mode: Variability; trends; and climate impacts across the Southern Hemisphere".Wiley Interdisciplinary Reviews: Climate Change 11.4(2020).