气候变化领域集成服务门户(CCPortal): Tropical climate responses to projected Arctic and Antarctic sea-ice loss

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DOI	10.1038/s41561-020-0546-9
	Tropical climate responses to projected Arctic and Antarctic sea-ice loss
	England M.R.; Polvani L.M.; Sun L.; Deser C.
发表日期	2020
ISSN	17520894
起始页码	275
结束页码	281
卷号	13 期号:4
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. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
英文关键词	climate modeling; global warming; intertropical convergence zone; precipitation (climatology); sea ice; tropical environment; Antarctica; Arctic Ocean; Pacific Ocean; Pacific Ocean (Equatorial)
语种	英语
来源期刊	Nature Geoscience
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206769
作者单位	Department of Applied Physics and Applied Mathematics, Columbia University, New York, NY, United States; Department of Physics and Physical Oceanography, University of North Carolina Wilmington, Wilmington, NC, United States; Department of Climate, Atmospheric Science, and Physical Oceanography, Scripps Institution of Oceanography, UCSD, La Jolla, CA, United States; Department of Earth and Environmental Science, Lamont Doherty Earth Observatory, Columbia University, New York, NY, United States; Department of Atmospheric Science, Colorado State University, Fort Collins, CO, United States; National Center for Atmospheric Research, Boulder, CO, United States
推荐引用方式 GB/T 7714	England M.R.,Polvani L.M.,Sun L.,et al. Tropical climate responses to projected Arctic and Antarctic sea-ice loss[J],2020,13(4).
APA	England M.R.,Polvani L.M.,Sun L.,&Deser C..(2020).Tropical climate responses to projected Arctic and Antarctic sea-ice loss.Nature Geoscience,13(4).
MLA	England M.R.,et al."Tropical climate responses to projected Arctic and Antarctic sea-ice loss".Nature Geoscience 13.4(2020).