Publication Date:
2022-05-25
Description:
Author Posting. © American Geophysical Union, 2013. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Geophysical Research Letters 40 (2013): 5704–5709, doi:10.1002/2013GL058064.
Description:
The complex double-ridge system in the Luzon Strait in the South China Sea (SCS) is one of the strongest sources of internal tides in the oceans, associated with which are some of the largest amplitude internal solitary waves on record. An issue of debate, however, has been the specific nature of their generation mechanism. To provide insight, we present the results of a large-scale laboratory experiment performed at the Coriolis platform. The experiment was carefully designed so that the relevant dimensionless parameters, which include the excursion parameter, criticality, Rossby, and Froude numbers, closely matched the ocean scenario. The results advocate that a broad and coherent weakly nonlinear, three-dimensional, M2 internal tide that is shaped by the overall geometry of the double-ridge system is radiated into the South China Sea and subsequently steepens, as opposed to being generated by a particular feature or localized region within the ridge system.
Description:
This work is funded by ONR grants N00014-09-
1-0282 and N00014-09-1-0227, CNRS-PICS grant 5860, ANR grant 08-
BLAN-0113-01, and the MIT-France Program.
Description:
2014-05-04
Keywords:
Internal tide
;
Luzon Strait
;
Internal solitary waves
;
Laboratory experiments
Repository Name:
Woods Hole Open Access Server
Type:
Article
Format:
application/pdf
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