Experiments with a Regional Fine-Mesh Prediction Model

Abstract

Twelve and 24-hr 500-mb forecasts have been made using a hemispheric dependent, limited-area, fine-mesh prediction model. The model is barotropic and makes use of the primitive equations. Boundary conditions are obtained via a coarse-mesh hemispheric model, and are imposed during the subsequent integration of the fine-mesh model. Two methods of initializing the fine-mesh simulation are presented. Comparison between the coarse- and fine-mesh results are shown. The quality of the fine-mesh predictions indicates the validity of the approach.