Abstract: tract

Abstract: A method of space averaging is presented for separating long and short waves in the 500-mb geostrophic flow. The long-wave features are further identified as perturbations. Some of the forecasting characteristics noted in ...

Abstract: Error charts for the numerical barotropic forecasts prepared at the Joint Numerical Weather Prediction Unit since October 1957 have revealed retrogressive patterns of very long wavelength. These errors are shown to be due ...