An Experimental Numerical Weather Prediction in Indochina Region with a Meso-Scale Model

Abstract

We perform a downscaling hindcast experiment in Indochina region with a fine-mesh meso-scale regional model under the assumption of the "perfect forecast" produced by a global numerical weather prediction model. The experiment is done for July and August in the wet Southwest Monsoon period. Validations of the downscaling hindcasts are done with surface station data of temperature and accumulated rainfall in Lao PDR. Some improvements in the downscaling hindcast are attained as a result of the better resolution of the surface topography. Further application of this kind of downscaling forecasts is discussed.