GSTDTAP  > 地球科学
DOI10.1038/s41561-020-0546-9
Tropical climate responses to projected Arctic and Antarctic sea-ice loss
England, Mark R.1,2,3; Polvani, Lorenzo M.1,4; Sun, Lantao5; Deser, Clara6
2020-03-16
发表期刊NATURE GEOSCIENCE
ISSN1752-0894
EISSN1752-0908
出版年2020
卷号13期号:4页码:275-+
文章类型Article
语种英语
国家USA
英文摘要

Arctic and Antarctic sea-ice extent are both projected to dramatically decline over the coming century. The effects of Arctic sea-ice loss are not limited to the northern high latitudes, and reach deep into the tropics. Yet little is known about the effects of future Antarctic sea-ice loss outside of the southern high latitudes. Here, using a fully coupled climate model, we investigate the tropical response to Antarctic sea-ice loss and compare it with the response to Arctic sea-ice loss. We show that Antarctic sea-ice loss, similar to Arctic sea-ice loss, causes enhanced warming in the eastern equatorial Pacific and an equatorward intensification of the Intertropical Convergence Zone. We demonstrate that Antarctic sea-ice loss causes a mini global warming signal comparable to the one caused by Arctic sea-ice loss, and reminiscent of the response to greenhouse gases. We also show that ocean dynamics are key to capturing the tropical response to sea-ice loss. In short, we find that future Antarctic sea-ice loss will exert a profound influence on the tropics. Combined Arctic and Antarctic sea-ice losses will account for 20-30% of the projected tropical warming and precipitation changes under the high-emissions scenario Representative Concentration Pathway 8.5.


Antarctic sea-ice loss causes enhanced warming in the eastern equatorial Pacific, and together with Arctic sea-ice loss accounts for 20-30% of projected warming and rainfall changes in the tropics, suggest climate model simulations.


领域地球科学 ; 气候变化
收录类别SCI-E
WOS记录号WOS:000519843400005
WOS关键词ATMOSPHERIC RESPONSE ; MERIDIONAL MODES ; HEAT-TRANSPORT ; PACIFIC ; CIRCULATION ; MECHANISM ; DECLINE ; IMPACT ; ROBUST ; COVER
WOS类目Geosciences, Multidisciplinary
WOS研究方向Geology
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文献类型期刊论文
条目标识符http://119.78.100.173/C666/handle/2XK7JSWQ/249300
专题地球科学
气候变化
作者单位1.Columbia Univ, Dept Appl Phys & Appl Math, New York, NY 10027 USA;
2.Univ N Carolina, Dept Phys & Phys Oceanog, Wilmington, NC 28403 USA;
3.UCSD, Scripps Inst Oceanog, Dept Climate Atmospher Sci & Phys Oceanog, La Jolla, CA 92037 USA;
4.Columbia Univ, Lamont Doherty Earth Observ, Dept Earth & Environm Sci, New York, NY USA;
5.Colorado State Univ, Dept Atmospher Sci, Ft Collins, CO 80523 USA;
6.Natl Ctr Atmospher Res, POB 3000, Boulder, CO 80307 USA
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England, Mark R.,Polvani, Lorenzo M.,Sun, Lantao,et al. Tropical climate responses to projected Arctic and Antarctic sea-ice loss[J]. NATURE GEOSCIENCE,2020,13(4):275-+.
APA England, Mark R.,Polvani, Lorenzo M.,Sun, Lantao,&Deser, Clara.(2020).Tropical climate responses to projected Arctic and Antarctic sea-ice loss.NATURE GEOSCIENCE,13(4),275-+.
MLA England, Mark R.,et al."Tropical climate responses to projected Arctic and Antarctic sea-ice loss".NATURE GEOSCIENCE 13.4(2020):275-+.
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