气候变化领域集成服务门户(CCPortal): Carbon dioxide sink in the Arctic Ocean from cross-shelf transport of dense Barents Sea water

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DOI	10.1038/s41561-022-01069-z
	Carbon dioxide sink in the Arctic Ocean from cross-shelf transport of dense Barents Sea water
	Rogge, Andreas; Janout, Markus; Loginova, Nadezhda; Trudnowska, Emilia; Hoerstmann, Cora; Wekerle, Claudia; Oziel, Laurent; Schourup-Kristensen, Vibe; Ruiz-Castillo, Eugenio; Schulz, Kirstin; Povazhnyy, Vasily V.; Iversen, Morten H.; Waite, Anya M.
发表日期	2023
ISSN	1752-0894
EISSN	1752-0908
起始页码	82
结束页码	+
卷号	16 期号:1 页码:21
英文摘要	Large amounts of atmospheric carbon can be exported and retained in the deep sea on millennial time scales, buffering global warming. However, while the Barents Sea is one of the most biologically productive areas of the Arctic Ocean, carbon retention times were thought to be short. Here we present observations, complemented by numerical model simulations, that revealed a deep and widespread lateral injection of approximately 2.33 kt C d(-1) from the Barents Sea shelf to some 1,200 m of the Nansen Basin, driven by Barents Sea Bottom Water transport. With increasing distance from the outflow region, the plume expanded and penetrated into even deeper waters and the sediment. The seasonally fluctuating but continuous injection increases the carbon sequestration of the Barents Sea by 1/3 and feeds the deep sea community of the Nansen Basin. Our findings combined with those from other outflow regions of carbon-rich polar dense waters highlight the importance of lateral injection as a global carbon sink. Resolving uncertainties around negative feedbacks of global warming due to sea ice decline will necessitate observation of changes in bottom water formation and biological productivity at a resolution high enough to quantify future deep carbon injection. Accounting for deep, cross-shelf carbon export into the Nansen Basin increases the carbon sequestration of the Barents Sea region of the Arctic Ocean by some 30%, according to numerical modelling supported by observational data.
学科领域	Geosciences, Multidisciplinary
语种	英语
WOS研究方向	Geology
WOS记录号	WOS:000886195100003
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/272593
作者单位	University of Kiel; Helmholtz Association; Alfred Wegener Institute, Helmholtz Centre for Polar & Marine Research; Arctic & Antarctic Research Institute; Polish Academy of Sciences; Institute of Oceanology of the Polish Academy of Sciences; Aarhus University; University of Texas System; University of Texas Austin; University of Bremen; University of Bremen; University of Bremen; Dalhousie University; Dalhousie University
推荐引用方式 GB/T 7714	Rogge, Andreas,Janout, Markus,Loginova, Nadezhda,et al. Carbon dioxide sink in the Arctic Ocean from cross-shelf transport of dense Barents Sea water[J],2023,16(1):21.
APA	Rogge, Andreas.,Janout, Markus.,Loginova, Nadezhda.,Trudnowska, Emilia.,Hoerstmann, Cora.,...&Waite, Anya M..(2023).Carbon dioxide sink in the Arctic Ocean from cross-shelf transport of dense Barents Sea water.NATURE GEOSCIENCE,16(1),21.
MLA	Rogge, Andreas,et al."Carbon dioxide sink in the Arctic Ocean from cross-shelf transport of dense Barents Sea water".NATURE GEOSCIENCE 16.1(2023):21.