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Comment on “Complete Eulerian-mean tracer equation for coarse resolution OGCMs” by M.S. Dubovikov and V.M. Canuto

Comment on “Complete Eulerian-mean tracer equation for coarse resolution OGCMs” by M.S. Dubovikov and V.M. Canuto
Comment on “Complete Eulerian-mean tracer equation for coarse resolution OGCMs” by M.S. Dubovikov and V.M. Canuto
Dubovikov and Canuto (2006), after averaging the tracer conservation equation in density coordinates and transforming to height coordinates, concluded that present ocean models are missing important terms in their mean tracer equations. Here we point out some errors made by Dubovikov and Canuto (2006) in their isopycnal averaging procedure. We draw on the temporal-residual-mean (TRM) theory and show that when the isopycnal averaging and coordinate transformation are performed correctly, the tracer equations of present ocean circulation models are recovered. We therefore conclude that present ocean circulation models are not neglecting the leading order terms identified by Dubovikov and Canuto (2006).
0309-1929
249-256
McDougall, Trevor J.
06a3853b-ba2c-4203-8a7d-34dd0e0a8836
Gent, Peter R.
1a1ae73e-14b2-4c42-918a-f0722fca11d6
Drijfhout, Sybren
a5c76079-179b-490c-93fe-fc0391aacf13
McDougall, Trevor J.
06a3853b-ba2c-4203-8a7d-34dd0e0a8836
Gent, Peter R.
1a1ae73e-14b2-4c42-918a-f0722fca11d6
Drijfhout, Sybren
a5c76079-179b-490c-93fe-fc0391aacf13

McDougall, Trevor J., Gent, Peter R. and Drijfhout, Sybren (2008) Comment on “Complete Eulerian-mean tracer equation for coarse resolution OGCMs” by M.S. Dubovikov and V.M. Canuto. Geophysical & Astrophysical Fluid Dynamics, 102 (3), 249-256. (doi:10.1080/03091920701638085).

Record type: Article

Abstract

Dubovikov and Canuto (2006), after averaging the tracer conservation equation in density coordinates and transforming to height coordinates, concluded that present ocean models are missing important terms in their mean tracer equations. Here we point out some errors made by Dubovikov and Canuto (2006) in their isopycnal averaging procedure. We draw on the temporal-residual-mean (TRM) theory and show that when the isopycnal averaging and coordinate transformation are performed correctly, the tracer equations of present ocean circulation models are recovered. We therefore conclude that present ocean circulation models are not neglecting the leading order terms identified by Dubovikov and Canuto (2006).

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Published date: 2008
Organisations: Ocean and Earth Science

Identifiers

Local EPrints ID: 348370
URI: http://eprints.soton.ac.uk/id/eprint/348370
ISSN: 0309-1929
PURE UUID: ccf36f1c-24a4-4e57-b90e-b74a54a47e7b

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Date deposited: 12 Feb 2013 13:41
Last modified: 16 Jul 2019 21:43

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