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Titolo:
Vorticity fluxes in shallow water ocean models
Autore:
Peterson, KA; Greatbatch, RJ;
Indirizzi:
Dalhousie Univ, Dept Oceanog, Halifax, NS B3H 4J1, Canada Dalhousie Univ Halifax NS Canada B3H 4J1 nog, Halifax, NS B3H 4J1, Canada
Titolo Testata:
ATMOSPHERE-OCEAN
fascicolo: 1, volume: 39, anno: 2001,
pagine: 1 - 14
SICI:
0705-5900(200103)39:1<1:VFISWO>2.0.ZU;2-M
Fonte:
ISI
Lingua:
ENG
Soggetto:
EDDY-INDUCED TRANSPORT; POTENTIAL VORTICITY; CIRCULATION MODELS; STOCHASTIC-THEORY; MEAN-FLOW; GEOSTROPHIC TURBULENCE; TRACER TRANSPORTS; MESOSCALE EDDIES; BOLUS VELOCITY; PARAMETERIZATION;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
Citazioni:
32
Recensione:
Indirizzi per estratti:
Indirizzo: Peterson, KA Dalhousie Univ, Dept Oceanog, Halifax, NS B3H 4J1, Canada Dalhousie Univ Halifax NS Canada B3H 4J1 NS B3H 4J1, Canada
Citazione:
K.A. Peterson e R.J. Greatbatch, "Vorticity fluxes in shallow water ocean models", ATMOS OCEAN, 39(1), 2001, pp. 1-14

Abstract

We investigate some of the claims concerning new eddy parametrization schemes for coarse resolution ocean models by analyzing the role of eddies in eddy-resolving 1 1/2 and 2 1/2 layer models with double-gyre wind forcing. We find that the divergent part of the eddy flux of potential vorticity is directed down the mean thickness-weighted potential vorticity gradient. The relationship between the eddy flux of thickness and either the mean thickness or mean thickness-weighted potential vorticity gradients is less clear. The analysis is complicated by the presence of large rotational fluxes of both thickness and potential vorticity and by the importance of the Reynoldsstress terms. We argue that the rotational fluxes have a fundamental role to play and need to be parametrized in a comprehensive parametrization scheme.

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Documento generato il 18/01/20 alle ore 13:12:19