Semi-lagrangian Transport Algorithms for the Shallow Water Equations in Spherical Geometry
نویسندگان
چکیده
Global atmospheric circulation models (GCM) typically have three primary algorithmic components: columnar physics, spectral tran-form, and semi-Lagrangian transport. In this study, several varients of a SLT method are studied in the context of test cases for the shallow water equations in spherical geometry. A grid point formulation is used with implicit, semi-implicit or explicit time integration techniques based three time level diierencing. The spatial error is minimized by using a spectral approximation of derivatives.
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