AN ESTIMATION OF OPTIMUM GRID SIZE FOR KASHMIR-VALLEY BY SPECTRAL METHOD

In many of the short-range numerical weather prediction models, an acc urate specification of grid size is essential in mountainous and valle y regions to adequately represent terrain forcing without resorting to subgrid-scale parameterization. Since the geomorphology of the earth is quite varied, an improper specification of grid size will neither b e adequate nor realistic. In this study, the spectral method is used t o determine the required optimum horizontal grid size for numerical si mulations enclosing Kashmir Valley and its surroundings.