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This is the authors' accepted manuscript of an article that has been published in its final definitive form by Wiley-Blackwell, 2018.
For re-use rights please refer to the publisher's terms and conditions.
The Panama Basin serves as a laboratory to investigate abyssal water upwelling. The basin has only a single abyssal water inflow pathway through the narrow Ecuador Trench. The estimated critical inflow through the Trench reaches 0.34 ± 0.07 m/s, resulting in an abyssal water volume inflow of 0.29 ± 0.07 Sv. The same trench carries the return flow of basin waters that starts just 200 m above the bottom and is approximately 400‐m deeper than the depth of the next possible deep water exchange pathway at the Carnegie Ridge Saddle. The curvature of temperature‐salinity diagrams is used to differentiate the effect of geothermal heating on the deep Panama Basin waters that was found to reach as high as 2,200‐m depth, which is about 500 m above the upper boundary of the abyssal water layer.
Author(s): Banyte D, Morales Maqueda MA, Smeed DA, Hobbs R, Megann A, Recalde S
Publication type: Article
Publication status: Published
Journal: Journal of Geophysical Research: Oceans
Print publication date: 01/10/2018
Online publication date: 24/08/2018
Acceptance date: 21/05/2018
Date deposited: 24/01/2019
ISSN (print): 2169-9275
ISSN (electronic): 2169-9291
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