气候变化领域集成服务门户(CCPortal): Rapid Export of Waters Formed by Convection Near the Irminger Sea's Western Boundary

CCPortal

DOI	10.1029/2019GL085989
	Rapid Export of Waters Formed by Convection Near the Irminger Sea's Western Boundary
	Le Bras I.A.A.; Straneo F.; Holte J.; de Jong M.F.; Holliday N.P.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:3
英文摘要	The standard view of the overturning circulation emphasizes the role of convection, yet for waters to contribute to overturning, they must not only be transformed to higher densities but also exported equatorward. From novel mooring observations in the Irminger Sea (2014–2016), we describe two water masses that are formed by convection and show that they have different rates of export in the western boundary current. Upper Irminger Sea Intermediate Water appears to form near the boundary current and is exported rapidly within 3 months of its formation. Deep Irminger Sea Intermediate Water forms in the basin interior and is exported on longer time scales. The subduction of these waters into the boundary current is consistent with an eddy transport mechanism. Our results suggest that light intermediate waters can contribute to overturning as much as waters formed by deeper convection and that the export time scales of both project onto overturning variability. ©2020. The Authors.
英文关键词	Geophysics; Heat convection; Boundary currents; High Latitudes; Intermediate waters; North Atlantic; overturning; Overturning circulation; Western boundary; Western boundary currents; Earth sciences
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/170732
作者单位	Scripps Institution of Oceanography, University of California San Diego, La Jolla, CA, United States; NIOZ Royal Netherlands Institute for Sea Research and Utrecht University, Texel, Netherlands; National Oceanography Centre, Southampton, United Kingdom
推荐引用方式 GB/T 7714	Le Bras I.A.A.,Straneo F.,Holte J.,et al. Rapid Export of Waters Formed by Convection Near the Irminger Sea's Western Boundary[J],2020,47(3).
APA	Le Bras I.A.A.,Straneo F.,Holte J.,de Jong M.F.,&Holliday N.P..(2020).Rapid Export of Waters Formed by Convection Near the Irminger Sea's Western Boundary.Geophysical Research Letters,47(3).
MLA	Le Bras I.A.A.,et al."Rapid Export of Waters Formed by Convection Near the Irminger Sea's Western Boundary".Geophysical Research Letters 47.3(2020).