Abstract: Short wavelength linear baroclinic instability is examined numerically in two quasi-geostrophic models and one ageostrophic model. The growth rate spectra for the ageostrophic model differ little from those of the ...

Abstract: The wavelength of maximum baroclinic instability (WMI), maximum growth rate (MGR), phase velocities, and other quantities, are computed for an atmosphere with an internal 100-mb layer having various shears and lapse rates ...

Abstract: Observations show that the lapse rate increases upward in the troposphere. Baroclinic instability spectra are presented for the lapse rate increasing linearly upward from small values in the lower troposphere to large ...

Abstract: The discrete-level baroclinic eigenproblem developed by Satyamurty et al., based on a Boussinesq primitive equation model, is solved by a shooting method for very high vertical resolution. It is found that the vertical ...

Abstract: A shooting method is applied to a 100-level perturbation model with an explicit Ekman layer. Growth rates for a no-slip boundary condition are similar to those found previously. It is noted that the large cross-isobaric ...

Abstract: Attempted explanations of the 26-month zonal wind oscillation in the equatorial stratosphere are critically examined. Explanations in terms of subharmonic response, ?vacillation,? or a resonant mode are rejected. Some ...

Abstract: No abstract available.

Abstract: The fundamental equations are linearized by the method of small perturbations for the conditions of hydrostatic equilibrium and geostrophic balance of meridional forces. In a first case, Fickian momentum diffusion is used; ...

Abstract: The adiabatic lapse rate is derived for a real gas, and the result applied to the Venus atmosphere, which is assumed to consist of pure CO2. The ratio of the real to the ideal gas adiabatic lapse rate is found to exceed ...

Abstract: The evolution of Sr-90 distribution following an instantaneous stratospheric or tropospheric source in an annulus defined by latitude walls is investigated by means of a very simple model that uses 12 stratospheric and 12 ...