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  • Another reason why simple discretizations of rotated diffusion operators cause problems in oceans models: comments on "Isoneutral Diffusion in a z-Coordinate Ocean Model"


In recent papers, (Grifies et al. 1998; Griffies 1998). the problem of isopycnal diffusion and Gent-Mc Williams Stirring in z-codordinate models was reviewed and a new discretization proposed. It was shown that classical discretization (Cox 1987; Gent and Mc Williams 1990) needs rather heavy background diffusion along the grid lines in order to stabilize the scheme. Griffies et al.(1998) show the possible origin of the problem.

Additional information

Authors: BECKERS J.M, University of Liege (BE);BURCHARD H, JRC-Space Applications Institute, Ispra (IT);CAMPIN J.M, University Catholique de Louvain (BE);DELEERSNIJDER E, University Catholique de Louvain (BE);MATHIEU P.P, University Catholique de Louvain (BE)
Bibliographic Reference: Article published in Journal of Physical Oceanography (1999), vol. 28, pp1552-1559
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