Abstract: A numerical method for obtaining trajectories from non-divergent, non-geostrophic, barotropic forecasts is presented. The wind used in the computation of direction and speed of movement is derived from a Least Squares cubic ...

Abstract: Since July 1956 the Joint Numerical Weather Prediction Unit at Suitland, Md., has been making machine forecasts of sea conditions on an operational basis. These prognoses are based on the 1,000-mb. wind forecasts derived ...

Abstract: In solving the differential equations used in numerical weather prediction, one resorts to the use of finite-difference techniques. In the barotropic model it is assumed that the absolute vorticity is conserved. Even though ...