عنوان مقاله [English]
نویسندگان [English]چکیده [English]
The effect of accuracy of weather prediction on all aspects of normal life and special affairs is clear. Today, with optimal utilization of various models and knowledge of their accuracy, the effective steps have been taken in order to achieve this aim. The operational use of one of these models, global model, has not been done yet in our country. In this study, the barotropic model with spectral method was developed to predict the geo-potential field. Due to the high volume of information and capacity limitation of personal computers, model is performed with low resolution. Geo-potential field is predicted with leap frog scheme, and then with using the reverse of these conversions we can return to physical space from spectral space. Implementation of this model shows relatively good results. Some assumptions such as existence of baroclinic atmosphere, releasing latent heat and considering earth topography, can achieve a better prediction from this model.