Abstract: Three-dimensional, adiabatic, inviscid flow over orography is examined by means of a semigeostrophic model expressed in isentropic coordinates. A nondimensional mountain height ?/D ? 0.5, based on the deformation depth D ...

Abstract: The interaction of a three-dimensional cold front and an isolated orographic ridge is examined by means of primitive equation model simulations. The front evolves as part of a developing nonlinear baroclinic wave and ...

Abstract: The effect of compressibility on two-dimensional barotropic and baroclinic growth rates is examined by means of a linearized nonhydrostatic compressible model. It is shown that the growth rates are diminished when ...

Abstract: Three-dimensional, steady and inviscid flow over orography is examined by means of a semigeostrophic model. A constant Coriolis parameter f, uniform potential vorticity and a uniform basic flow characterize this model, ...

Abstract: Steady, three-dimensional, inviscid flow over orography is examined by means of a semi-geostrophic model. A nonuniform basic current, represented by a deformation flow, is employed. A constant Coriolis parameters ƒ and ...

Abstract: The orographic modification of cyclone development is examined by means of primitive equation model simulations. When a mature baroclinic wave impinges on an east?west oriented mountain ridge, a relatively intense cyclone ...

Abstract: A basic uniform current flows over a two-dimensional finite-amplitude ridge of characteristic male L and amplitude ?. The disturbance field is constrained by the geostrophic momentum approximation, by uniform potential ...

Abstract: Steady-state, two-dimensional disturbances forced by flow over a finite-amplitude ridge are considered. The model represents an extension of the one presented by Robinson (1960). This study is based on the semigeostrophic ...

Abstract: A generalized dynamical adjustment procedure has been applied to a diabatic model to produce balanced initial conditions. Namely, backward adiabatic model integration is followed by forward diabatic model integration, with ...