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DOI10.1007/s00382-019-04824-y
Oceanic heat transport into the Arctic under high and low CO 2 forcing
van der Linden E.C.; Le Bars D.; Bintanja R.; Hazeleger W.
发表日期2019
ISSN0930-7575
起始页码4763
结束页码4780
卷号53期号:2020-07-08
英文摘要Enhanced ocean heat transport into the Arctic is linked to stronger future Arctic warming and polar amplification. To quantify the impact of ocean heat transport on Arctic climate, it is imperative to understand how its magnitude and the associated mechanisms change in other climate states. This paper therefore assesses the ocean heat transport into the Arctic at 70 ∘N for climates forced with a broad range of carbon dioxide concentration levels, ranging from one-fourth to four times modern values. We focused on ocean heat transports through the Arctic entrances (Bering Strait, Canadian Archipelago, and Nordic Seas) and identified relative contributions of volume and temperature to these changes. The results show that ocean heat transport differences across the five climate states are dominated by heat transport changes in the Nordic Seas, although in the warmest climate state heat transport through the Bering Strait plays an almost equally important role. This is primarily caused by changes in horizontal currents owing to anomalous wind responses and to differential advection of thermal anomalies. Changes in sea ice cover play a prominent role by modulating the surface heat fluxes and the impact of wind stresses on ocean currents. The Atlantic meridional overturning circulation and its associated heat transport play a more modest role in the ocean heat transport into the Arctic. The net effect of these changes is that the poleward ocean heat transport at 70 ∘N strongly increases from the coldest climate to the warmest climate state. © 2019, The Author(s).
英文关键词Arctic climate change; Equilibrium climate states; Gyre transport; Nordic Seas; Oceanic heat transport
语种英语
scopus关键词arctic environment; carbon dioxide; climate change; climate forcing; climate variation; global warming; gyre; heat transfer; ice cover; quantitative analysis; sea ice; Arctic; Arctic Ocean; Atlantic Ocean; Bering Strait; Canada; Canadian Arctic; Norwegian Sea
来源期刊Climate Dynamics
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/145926
作者单位Water Systems and Global Change Group, Wageningen University and Research, Wageningen, Netherlands; Royal Netherlands Meteorological Institute (KNMI), De Bilt, Netherlands; Energy and Sustainability Research Institute Groningen, University of Groningen, Groningen, Netherlands; Meteorology and Air Quality Group, Wageningen University and Research, Wageningen, Netherlands; Netherlands eScience Center, Amsterdam, Netherlands
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van der Linden E.C.,Le Bars D.,Bintanja R.,et al. Oceanic heat transport into the Arctic under high and low CO 2 forcing[J],2019,53(2020-07-08).
APA van der Linden E.C.,Le Bars D.,Bintanja R.,&Hazeleger W..(2019).Oceanic heat transport into the Arctic under high and low CO 2 forcing.Climate Dynamics,53(2020-07-08).
MLA van der Linden E.C.,et al."Oceanic heat transport into the Arctic under high and low CO 2 forcing".Climate Dynamics 53.2020-07-08(2019).
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