The Relationship between the Grid Size and the Coefficient of Nonlinear Lateral Eddy Viscosity in Numerical Ocean Circulation Models
Abstract
When a constant coefficient of lateral eddy viscosity v_{0} is used in ocean circulation models, a false computational space oscillation is generated in the western boundary region if v_{0} is smaller than a critical value. The use of a nonlinear eddy viscosity coefficient based upon twodimensional turbulence theory is shown to permit the use of an eddy viscosity which, away from the western boundary region, is at least an order of magnitude smaller than the above critical value.
 Publication:

Journal of Computational Physics
 Pub Date:
 November 1975
 DOI:
 10.1016/00219991(75)900765
 Bibcode:
 1975JCoPh..19..257H