气候变化领域集成服务门户(CCPortal): Delayed Antarctic sea-ice decline in high-resolution climate change simulations

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DOI	10.1038/s41467-022-28259-y
	Delayed Antarctic sea-ice decline in high-resolution climate change simulations
	Rackow T.; Danilov S.; Goessling H.F.; Hellmer H.H.; Sein D.V.; Semmler T.; Sidorenko D.; Jung T.
发表日期	2022
ISSN	2041-1723
卷号	13 期号:1
英文摘要	Despite global warming and Arctic sea-ice loss, on average the Antarctic sea-ice extent has not declined since 1979 when satellite data became available. In contrast, climate model simulations tend to exhibit strong negative sea-ice trends for the same period. This Antarctic sea-ice paradox leads to low confidence in 21st-century sea-ice projections. Here we present multi-resolution climate change projections that account for Southern Ocean mesoscale eddies. The high-resolution configuration simulates stable September Antarctic sea-ice extent that is not projected to decline until the mid-21st century. We argue that one reason for this finding is a more realistic ocean circulation that increases the equatorward heat transport response to global warming. As a result, the ocean becomes more efficient at moderating the anthropogenic warming around Antarctica and hence at delaying sea-ice decline. Our study suggests that explicitly simulating Southern Ocean eddies is necessary for providing Antarctic sea-ice projections with higher confidence. © 2022, The Author(s).
语种	英语
scopus关键词	climate change; global warming; mesoscale eddy; satellite data; sea ice; simulation; Antarctica; article; climate change; greenhouse effect; heat; ocean circulation; sea ice; simulation; Southern Ocean; Antarctica; Southern Ocean
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/250523
作者单位	Alfred Wegener Institute, Helmholtz Centre for Polar and Marine Research, Bremerhaven, Germany; Jacobs University Bremen, Bremen, Germany; P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Moscow, Russian Federation; Institute of Environmental Physics, University of Bremen, Bremen, Germany; European Centre for Medium-Range Weather Forecasts, Bonn, Germany
推荐引用方式 GB/T 7714	Rackow T.,Danilov S.,Goessling H.F.,et al. Delayed Antarctic sea-ice decline in high-resolution climate change simulations[J],2022,13(1).
APA	Rackow T..,Danilov S..,Goessling H.F..,Hellmer H.H..,Sein D.V..,...&Jung T..(2022).Delayed Antarctic sea-ice decline in high-resolution climate change simulations.Nature Communications,13(1).
MLA	Rackow T.,et al."Delayed Antarctic sea-ice decline in high-resolution climate change simulations".Nature Communications 13.1(2022).