A Splitting Scheme for Large-Scale Atmosphere Dynamics Models

摘要

Splitting techniques are applied in the context of the semi-Lagrangian semi-implicit approach in order to design computationally efficient and accurate numerical scheme for large-scale atmosphere dynamics. Description of the constructed numerical algorithm is provided and its properties of accuracy and stability are discussed. Performed numerical experiments with daily gridded atmospheric data showed that the developed scheme is efficient and supplies accurate forecast fields using time steps up to one hour.