气候变化领域集成服务门户(CCPortal): Transport and Evolution of the East Reykjanes Ridge Current

CCPortal

DOI	10.1029/2020JC016377
	Transport and Evolution of the East Reykjanes Ridge Current
	Koman G.; Johns W.E.; Houk A.
发表日期	2020
ISSN	21699275
卷号	125 期号:10
英文摘要	This study of the first continuous multiyear observations of the East Reykjanes Ridge Current (ERRC) reveals a highly variable, mostly barotropic southwestward flow with a mean transport of 10–13 Sv. The ERRC effectively acts as a western boundary current in the Iceland Basin on the eastern flank of the Reykjanes Ridge. As part of the Overturning in the Subpolar North Atlantic Program (OSNAP), continuous measurements of the ERRC have been maintained for the first time using acoustic Doppler current profilers, current meters, and dynamic height moorings at six mooring sites near 58°N since 2014. Together with satellite altimetry and Argo profile and drift data, the mean transport, synoptic variability, water mass properties, and upstream and downstream pathways of the ERRC are examined. Results show that the ERRC forms in the northeastern Iceland Basin at the convergence of surface waters from the North Atlantic Current and deeper Icelandic Slope Water formed along the Iceland-Faroe Ridge. The ERRC becomes denser as it cools and freshens along the northern and western topography of the Basin before retroflecting over the Reykjanes Ridge near 59°N into the Irminger Current. Analysis of the flow-weighted density changes along the ERRC's path reveals that it is responsible for about one third of the net potential density change of waters circulating around the rim of the subpolar gyre. ©2020. American Geophysical Union. All Rights Reserved.
英文关键词	East Reykjanes Ridge Current; Iceland Basin; Icelandic Slope Water; North Atlantic Current; North Atlantic subpolar gyre; overturning circulation
语种	英语
来源期刊	Journal of Geophysical Research: Oceans
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/186625
作者单位	Rosenstiel School of Marine and Atmospheric Science, University of Miami, Miami, FL, United States
推荐引用方式 GB/T 7714	Koman G.,Johns W.E.,Houk A.. Transport and Evolution of the East Reykjanes Ridge Current[J],2020,125(10).
APA	Koman G.,Johns W.E.,&Houk A..(2020).Transport and Evolution of the East Reykjanes Ridge Current.Journal of Geophysical Research: Oceans,125(10).
MLA	Koman G.,et al."Transport and Evolution of the East Reykjanes Ridge Current".Journal of Geophysical Research: Oceans 125.10(2020).