A conjecture on the role of bottom-enhanced diapycnal mixing in the parameterization of geostrophic eddies
A conjecture on the role of bottom-enhanced diapycnal mixing in the parameterization of geostrophic eddies
The parameterization of geostrophic eddies represents a large sink of energy in most ocean models, yet the ultimate fate of this eddy energy in the ocean remains unclear. The authors conjecture that a significant fraction of the eddy energy may be transferred to internal lee waves and oscillations over rough bottom topography, leading to bottom-enhanced diapycnal mixing. A range of circumstantial evidence in support of this conjecture is presented and discussed. The authors further propose a modification to the Gent and McWilliams eddy parameterization to account for the bottom-enhanced diapycnal mixing.
1607-1613
Marshall, David P.
70dddf0a-46d1-404f-aa8f-5fb9902ab587
Naveira Garabato, Alberto C.
97c0e923-f076-4b38-b89b-938e11cea7a6
July 2008
Marshall, David P.
70dddf0a-46d1-404f-aa8f-5fb9902ab587
Naveira Garabato, Alberto C.
97c0e923-f076-4b38-b89b-938e11cea7a6
Marshall, David P. and Naveira Garabato, Alberto C.
(2008)
A conjecture on the role of bottom-enhanced diapycnal mixing in the parameterization of geostrophic eddies.
Journal of Physical Oceanography, 38 (7), .
(doi:10.1175/2007JPO3619.1).
Abstract
The parameterization of geostrophic eddies represents a large sink of energy in most ocean models, yet the ultimate fate of this eddy energy in the ocean remains unclear. The authors conjecture that a significant fraction of the eddy energy may be transferred to internal lee waves and oscillations over rough bottom topography, leading to bottom-enhanced diapycnal mixing. A range of circumstantial evidence in support of this conjecture is presented and discussed. The authors further propose a modification to the Gent and McWilliams eddy parameterization to account for the bottom-enhanced diapycnal mixing.
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Published date: July 2008
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Local EPrints ID: 37585
URI: http://eprints.soton.ac.uk/id/eprint/37585
ISSN: 0022-3670
PURE UUID: 14674cf0-e4fa-46ff-a6cf-182890210e77
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Date deposited: 24 May 2006
Last modified: 16 Mar 2024 03:48
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Author:
David P. Marshall
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