Abstract: Regression techniques are applied on stratified and non-stratified data to obtain prediction equations for the probability of precipitation over the western continental United States. The stratification is based on 500-mb ...

Abstract: A three-component barotropic flow is considered to study the time behavior of the joint probability density function of spectral amplitudes. The beta effect is included by allowing the phase of the waves to be a linear ...

Abstract: The effect of friction in strongly divergent steady flows is studied. It is found that friction weakens flow divergence out of strong high-pressure centers, contrary to the more commonly studied case for weaker high-pressure ...

Abstract: A system of three Fourier components in a barotropic channel flow is considered to investigate the influence of topography on a neutral Rossby wave. Analytic solutions show how topography induces a nonlinear oscillation ...

Abstract: The seasonal transition from spring to summer in the Northern Hemisphere and from fall to winter in the Southern Hemisphere is studied for 1979 using gridded datasets produced by the Goddard Laboratory for Atmospheres. ...

Abstract: One year of geopotential data obtained from the National Meteorological Center and the National Center for Atmospheric Research are diagnosed for the occurrence of non-elliptic regions with respect to the balance equation. ...

Abstract: Time-dependent flow solutions for steady supergradient pressure patterns are presented for a variety of initial flow configurations. These solutions discriminate initial conditions and pressure patterns that produce stable ...

Abstract: Frequency spectra of heights and geostrophic vorticities are computed for several points over the western continental United States and eastern Pacific. These spectra exhibit horizontal variations which appear to be, at ...

Abstract: An efficient alternative to the customary balance equation solution procedures is described which gives very similar solutions for those cases when the balance equation is elliptic. This alternative invokes some assumptions ...

Abstract: Observed perturbation kinetic and available energy are presented for a region about 3000 km on a side to study the horizontal homogeneity and general characteristics of geostrophic motions. Frequency spectral analysis is ...