气候变化领域集成服务门户(CCPortal): Routes of the Upper Branch of the Atlantic Meridional Overturning Circulation according to an Ocean State Estimate

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DOI	10.1029/2020GL089137
	Routes of the Upper Branch of the Atlantic Meridional Overturning Circulation according to an Ocean State Estimate
	Rousselet L.; Cessi P.; Forget G.
发表日期	2020
ISSN	0094-8276
卷号	47 期号:18
英文摘要	The origins of the upper branch of the Atlantic meridional overturning circulation (AMOC) are traced with backward-in-time Lagrangian trajectories, quantifying the partition of volume transport between different routes of entry from the Indo-Pacific into the Atlantic. Particles are advected by the velocity field from a recent release of “Estimating the Circulation and Climate of the Ocean” (ECCOv4). This global time-variable velocity field is a dynamically consistent interpolation of over 1 billion oceanographic observations collected between 1992 and 2015. Of the 13.6 Sverdrups (1 Sv = 106 m3/s) flowing northward across 6°S, 15% enters the Atlantic from Drake Passage, 35% enters from the straits between Asia and Australia (Indonesian Throughflow), and 49% comes from the region south of Australia (Tasman Leakage). Because of blending in the Agulhas region, water mass properties in the South Atlantic are not a good indicator of origin. ©2020. The Authors.
英文关键词	Blending; Transportation routes; Velocity; Atlantic meridional overturning circulations; Drake passage; Indonesian throughflow; Lagrangian trajectories; South Atlantic; Velocity field; Volume transport; Water-mass properties; Oceanography; Lagrangian analysis; meridional circulation; overturn; throughflow; velocity profile; volume transport; Asia; Atlantic Ocean; Atlantic Ocean (South); Australia; Drake Passage
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/169723
作者单位	Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA, United States; Department of Earth, Atmospheric and Planetary Sciences, Massachusetts Institute of Technology, Cambridge, MA, United States
推荐引用方式 GB/T 7714	Rousselet L.,Cessi P.,Forget G.. Routes of the Upper Branch of the Atlantic Meridional Overturning Circulation according to an Ocean State Estimate[J],2020,47(18).
APA	Rousselet L.,Cessi P.,&Forget G..(2020).Routes of the Upper Branch of the Atlantic Meridional Overturning Circulation according to an Ocean State Estimate.Geophysical Research Letters,47(18).
MLA	Rousselet L.,et al."Routes of the Upper Branch of the Atlantic Meridional Overturning Circulation according to an Ocean State Estimate".Geophysical Research Letters 47.18(2020).