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 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: 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: 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: Predictability times are estimated from 500 mb heights resolved for horizontal scales from 5 ? 106 to 8 ? 106 m. These scales are defined through eigenvector analysis of seven years of winter data over a portion of the ...

Abstract: Empirical orthogonal functions for the 500 mb height and 850 mb temperature fields over a limited domain are obtained. These functions are then used as predictors in a regression model to forecast the height field 24 h in ...

Abstract: Two sets of initial conditions are used to integrate a three-level quasi-geostrophic model in spectral form. After a maximum perturbation kinetic energy is reached, a barotropic exchange in established between the zonal ...

Abstract: Among the various energy transfer mechanisms that might be relevant for teleconnections between tropical and higher latitudes, Rossby wave propagation is certainly one of the most important. In view of this, it is of ...

Abstract: An objective correlation method is used to obtain seven typical 500-mb winter flow Patterns Over the western United States and eastern Pacific Ocean. The frequency of occurrence of each type is presented. The atmospheric ...

Abstract: A reconstructed rainfall dataset, and satellite estimates are used to analyze interannual to decadal variability of austral summer precipitation over South America. Rotated empirical orthogonal function (REOF) analysis is ...