Dissipation of internal waves generated by geostrophic motions over small scale topography

Deep reaching geostrophic flows in the Southern Ocean are suspected to energize internal lee waves close to bottom topography. Recent studies suggest that these internal lee waves generated in the Southern Ocean could largely be dissipated close to bottom topography. Nikurashin and Ferrari (2010b) p...

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Bibliographic Details
Main Author: Labreuche, Pierre
Other Authors: Laboratoire des Écoulements Géophysiques et Industriels Grenoble (LEGI), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology (Grenoble INP )-Centre National de la Recherche Scientifique (CNRS)
Format: Conference Object
Language:English
Published: HAL CCSD 2013
Subjects:
[SDU.OCEAN]Sciences of the Universe [physics]/Ocean
Atmosphere
Southern Ocean
Online Access:https://hal.science/hal-00855044
https://hal.science/hal-00855044/document
https://hal.science/hal-00855044/file/pg_0029.pdf
Description
Summary:Deep reaching geostrophic flows in the Southern Ocean are suspected to energize internal lee waves close to bottom topography. Recent studies suggest that these internal lee waves generated in the Southern Ocean could largely be dissipated close to bottom topography. Nikurashin and Ferrari (2010b) proposed from two-dimensionnal numerical simulations that such bottom intensification may result from coupling between these waves and inertial oscillations. We have studied the spatial distribution of turbulent kinetic energy dissipation resulting from this coupling.

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