气候变化领域集成服务门户(CCPortal): A Decade of Annual Arctic DOC Export With Polar Surface Water in the East Greenland Current

CCPortal

DOI	10.1029/2020GL089686
	A Decade of Annual Arctic DOC Export With Polar Surface Water in the East Greenland Current
	Gonçalves-Araujo R.; Stedmon C.A.; de Steur L.; Osburn C.L.; Granskog M.A.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:20
英文摘要	The export of dissolved organic carbon (DOC) from the Arctic Ocean is expected to change due to warming and increased river runoff. Here we present a method to quantify DOC transport with the East Greenland Current combining synoptic and year-round data (2009–2018). An algorithm based on quantitative and qualitative aspects of colored dissolved organic matter (CDOM) was developed to provide DOC estimates. Combined with mooring-derived monthly Polar Surface Water (PSW) volume transports, we estimate DOC exports for the period from 2003–2017. For much of the period DOC exports have been reasonably constant at 46.8 (±6.2) Tg yr−1, while the reduction in PSW export in recent years has resulted in lower annual DOC exports (below 39 Tg C yr−1). We now have a technique to resolve seasonal and annual fluctuations in Arctic carbon export, offering a significant improvement over earlier bulk estimates and represents a baseline to detect future change. © 2020. The Authors.
英文关键词	Organic carbon; Carbon export; Colored dissolved organic matter; Dissolved organic carbon; East greenland currents; Polar surfaces; Qualitative aspects; River runoffs; Volume transport; Surface waters; algorithm; annual variation; dissolved organic carbon; estimation method; mooring system; runoff; seasonal variation; volume transport; warming; Arctic Ocean; East Greenland Current
语种	英语
来源期刊	Geophysical Research Letters
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/169594
作者单位	National Institute of Aquatic Resources, Technical University of Denmark, Kgs. Lyngby, Denmark; Norwegian Polar Institute, Tromsø, Norway; Department of Marine, Earth, and Atmospheric Sciences, North Carolina State University at Raleigh, Raleigh, NC, United States
推荐引用方式 GB/T 7714	Gonçalves-Araujo R.,Stedmon C.A.,de Steur L.,et al. A Decade of Annual Arctic DOC Export With Polar Surface Water in the East Greenland Current[J],2020,47(20).
APA	Gonçalves-Araujo R.,Stedmon C.A.,de Steur L.,Osburn C.L.,&Granskog M.A..(2020).A Decade of Annual Arctic DOC Export With Polar Surface Water in the East Greenland Current.Geophysical Research Letters,47(20).
MLA	Gonçalves-Araujo R.,et al."A Decade of Annual Arctic DOC Export With Polar Surface Water in the East Greenland Current".Geophysical Research Letters 47.20(2020).