globalchange  > 气候变化与战略
DOI: 10.1038/s41561-020-0546-9
论文题名:
Tropical climate responses to projected Arctic and Antarctic sea-ice loss
作者: England M.R.; Polvani L.M.; Sun L.; Deser C.
刊名: Nature Geoscience
ISSN: 17520894
出版年: 2020
卷: 13, 期:4
起始页码: 275
结束页码: 281
语种: 英语
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)
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.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/169588
Appears in Collections:气候变化与战略

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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

Recommended Citation:
England M.R.,Polvani L.M.,Sun L.,et al. Tropical climate responses to projected Arctic and Antarctic sea-ice loss[J]. Nature Geoscience,2020-01-01,13(4)
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