气候变化领域集成服务门户(CCPortal): Robust Arctic warming caused by projected Antarctic sea ice loss

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DOI	10.1088/1748-9326/abaada
	Robust Arctic warming caused by projected Antarctic sea ice loss
	England M.R.; Polvani L.M.; Sun L.
发表日期	2020
ISSN	17489318
卷号	15 期号:10
英文摘要	Over the coming century, both Arctic and Antarctic sea ice cover are projected to substantially decline. While many studies have documented the potential impacts of projected Arctic sea ice loss on the climate of the mid-latitudes and the tropics, little attention has been paid to the impacts of Antarctic sea ice loss. Here, using comprehensive climate model simulations, we show that the effects of end-of-The-century projected Antarctic sea ice loss extend much further than the tropics, and are able to produce considerable impacts on Arctic climate. Specifically, our model indicates that the Arctic surface will warm by 1 °C and Arctic sea ice extent will decline by 0.5 × 106 km2 in response to future Antarctic sea ice loss. Furthermore, with the aid of additional atmosphere-only simulations, we show that this pole-To-pole effect is mediated by the response of the tropical SSTs to Antarctic sea ice loss: These simulations reveal that Rossby waves originating in the tropical Pacific cause the Aleutian Low to deepen in the boreal winter, bringing warm air into the Arctic, and leading to sea ice loss in the Bering Sea. This pole-To-pole signal highlights the importance of understanding the climate impacts of the projected sea ice loss in the Antarctic, which could be as important as those associated with projected sea ice loss in the Arctic. © 2020 The Author(s). Published by IOP Publishing Ltd.
英文关键词	antarctic; arctic; climate model simulations; climate projections; polar climate change; sea ice loss
语种	英语
scopus关键词	Climate models; Mechanical waves; Poles; Sea ice; Tropics; Antarctic sea ice; Arctic climate; Arctic sea ice; Arctic warming; Boreal winters; Climate impacts; Climate model simulations; Potential impacts; Oceanography; climate modeling; ice cover; Rossby wave; sea ice; warming; Arctic and Antarctic; Bering Sea; Pacific Ocean
来源期刊	Environmental Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/153688
作者单位	Department of Climate, Atmospheric Science and Physical Oceanography, Scripps Institution of Oceanography, San diego, CA, United States; Department of Physics and Physical Oceanography, University of North Carolina WilmingtonNC, United States; Department of Applied Mathematics and Applied Physics, Columbia University, New York, NY, United States; Department of Earth and Environmental Science, Lamont Doherty Earth Observatory, Columbia University, Palisades, NY, United States; Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States
推荐引用方式 GB/T 7714	England M.R.,Polvani L.M.,Sun L.. Robust Arctic warming caused by projected Antarctic sea ice loss[J],2020,15(10).
APA	England M.R.,Polvani L.M.,&Sun L..(2020).Robust Arctic warming caused by projected Antarctic sea ice loss.Environmental Research Letters,15(10).
MLA	England M.R.,et al."Robust Arctic warming caused by projected Antarctic sea ice loss".Environmental Research Letters 15.10(2020).