Abstract
We examine the generation of transient and stationary waves when baroclinic solid body rotation zonal currents flow over topography within an inviscid two-level nonlinear quasi-geostrophic model on a sphere. The equilibrium climate states resulting from different initial conditions are obtained for wide parameter ranges. The climates are obtained, not by direct integration and taking long time averages, but instead by using methods of equilibrium statistical mechanics. The effects of topography depend strongly on where, in the (U 1 ,U 3 ) phase space of solid body rotation components, the initial flow lies. Five regions of this phase space R 1 , R 2 , R T , R B1 and R B3 have been identified.
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