气候变化领域集成服务门户(CCPortal): Reduced efficiency of the Barents Sea cooling machine

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DOI	10.1038/s41558-020-0772-6
	Reduced efficiency of the Barents Sea cooling machine
	Skagseth Ø.; Eldevik T.; Årthun M.; Asbjørnsen H.; Lien V.S.; Smedsrud L.H.
发表日期	2020
ISSN	1758-678X
起始页码	661
结束页码	666
卷号	10 期号:7
英文摘要	Dense water masses from the Barents Sea are an important part of the Arctic thermohaline system. Here, using hydrographic observations from 1971 to 2018, we show that the Barents Sea climate system has reached a point where ‘the Barents Sea cooling machine’—warmer Atlantic inflow, less sea ice, more regional ocean heat loss—has changed towards less-efficient cooling. Present change is dominated by reduced ocean heat loss over the southern Barents Sea as a result of anomalous southerly winds. The outflows have accordingly become warmer. Outflow densities have nevertheless remained relatively unperturbed as increasing salinity appears to have compensated the warming inflow. However, as the upstream Atlantic Water is now observed to freshen while still relatively warm, we speculate that the Barents Sea within a few years may export water masses of record-low density to the adjacent basins and deep ocean circulation. © 2020, The Author(s), under exclusive licence to Springer Nature Limited.
语种	英语
scopus关键词	air-sea interaction; cooling; dense water; heat transfer; hydrographic survey; outflow; salinity; thermohaline structure; warming; water mass; Arctic Ocean; Atlantic Ocean; Barents Sea
来源期刊	Nature Climate Change
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/142203
作者单位	Institute of Marine Research and Bjerknes Centre of Climate Research, Bergen, Norway; Geophysical Institute, University of Bergen and Bjerknes Centre of Climate Research, Bergen, Norway
推荐引用方式 GB/T 7714	Skagseth Ø.,Eldevik T.,Årthun M.,et al. Reduced efficiency of the Barents Sea cooling machine[J],2020,10(7).
APA	Skagseth Ø.,Eldevik T.,Årthun M.,Asbjørnsen H.,Lien V.S.,&Smedsrud L.H..(2020).Reduced efficiency of the Barents Sea cooling machine.Nature Climate Change,10(7).
MLA	Skagseth Ø.,et al."Reduced efficiency of the Barents Sea cooling machine".Nature Climate Change 10.7(2020).