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Geothermal heating in the Panama Basin. Part I: hydrography of the basin

Banyte, D.; Morales Maqueda, M.; Hobbs, R.; Smeed, D.A.; Megann, A.; Recalde, S.

Geothermal heating in the Panama Basin. Part I: hydrography of the basin Thumbnail


Authors

D. Banyte

M. Morales Maqueda

R. Hobbs

D.A. Smeed

A. Megann

S. Recalde



Abstract

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−1, 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‚Äźsalinity diagrams is used to differentiate the effect of geothermal heating on the deep Panama Basin waters that was found to reach as high as 2200 m depth, which is about 500 m above the upper boundary of the abyssal water layer.

Citation

Banyte, D., Morales Maqueda, M., Hobbs, R., Smeed, D., Megann, A., & Recalde, S. (2018). Geothermal heating in the Panama Basin. Part I: hydrography of the basin. Journal of Geophysical Research: Oceans, 123(10), 7382-7392. https://doi.org/10.1029/2018jc013868

Journal Article Type Article
Acceptance Date May 21, 2018
Online Publication Date Oct 21, 2018
Publication Date Oct 21, 2018
Deposit Date Sep 4, 2018
Publicly Available Date Apr 21, 2019
Journal Journal of Geophysical Research: Oceans
Print ISSN 2169-9291
Electronic ISSN 2169-9291
Publisher American Geophysical Union
Peer Reviewed Peer Reviewed
Volume 123
Issue 10
Pages 7382-7392
DOI https://doi.org/10.1029/2018jc013868

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Copyright Statement
Banyte, D., Morales Maqueda, M., Hobbs, R., Smeed, D. A., Megann, A. & Recalde, S. (2018). Geothermal heating in the Panama Basin. Part I: hydrography of the basin. Journal of Geophysical Research: Oceans 123(10): 7382-7392, 10.1029/2018JC013869 (DOI). To view the published open abstract, go to https://doi.org/ and enter the DOI.





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