Abstract: The stability of baroclinic Rossby waves in a zonal shear flow is examined. The model used is a linear, quasi-geostrophic, two-level, adiabatic and frictionless midlatitude ?-plane model. The perturbations consist of ...

Abstract: The stability analysis of baroclinic Rossby waves in a zonal shear flow examined in Part I is applied to the atmosphere. The basic state consists of a planetary-scale (wavenumber 1) Rossby wave in a zonal flow with vertical ...

Abstract: The effects of nonlinear diffusive beat transport in North's (1975) model is reexamined. By inserting the nonlinearity into the original energy balance equation rather than the spectrally transformed linear algebraic ...

Abstract: Triangular spectral elements offer high accuracy in complex geometries, but solving the related matrix problem can be cumbersome and time consuming. In restricted applications, recent developments have led to a family of ...

Abstract: Atmospheric sensible and latent heat fluxes constitute an important component of the total poleward energy transport in the climate system. The authors investigate the relative role of these heat fluxes in normal and ...

Abstract: Various authors have proposed that the cooling associated with melting precipitation contributes significantly to the dynamics of mesoscale precipitation systems. In this study, we use the numerical model described in Part ...

Abstract: The melting of snow extracts latent heat of fusion from the environment. The basic response of the atmosphere to this cooling-by-melting mechanism is investigated by using a nonlinear two-dimensional numerical model. It ...

Abstract: The presence of orography can lead to thermally and dynamically induced mesoscale wind fields. The phenomenon of channeling refers to the tendency for the winds within a valley to blow more or less parallel to the valley ...

Abstract: In this paper, the physical mechanism of the polar halocline catastrophe (PHC) is reexamined with emphasis on the role played by the surface heat flux. It is argued that, in a coupled ocean?atmosphere system, thermal changes ...

Abstract: The finite-element, semi-implicit, and semi-Lagrangian methods are combined together to solve the shallow-water equations using unstructured triangular meshes. Triangular finite elements are attractive for ocean modeling ...