TOPOGRAPHIC STRESS PARAMETERIZATION IN A QUASI-GEOSTROPHIC BAROTROPICMODEL

Authors
MERRYFIELD WJ HOLLOWAY G
Citation
Wj. Merryfield et G. Holloway, TOPOGRAPHIC STRESS PARAMETERIZATION IN A QUASI-GEOSTROPHIC BAROTROPICMODEL, Journal of Fluid Mechanics, 341, 1997, pp. 1-18
Citations number
26
Categorie Soggetti
Mechanics,"Phsycs, Fluid & Plasmas
Journal title
Journal of Fluid Mechanics → ACNP
ISSN journal
00221120
Volume
341
Year of publication
1997
Pages
1 - 18
Database
ISI
SICI code
0022-1120(1997)341:<1:TSPIAQ>2.0.ZU;2-N
Abstract
The physical basis for parameterizing topographic stress due to unreso lved eddies is examined in a quasi-geostrophic barotropic model. Topog raphic stress parameterization is shown to represent two effects of ed dies: attraction of the flow to a statistical equilibrium featuring to pographically correlated mean currents, and dissipation of potential e nstrophy. Performance is evaluated by comparing parameterized low-reso lution models with explicit high-resolution models.