verification of wrf model on accuracy and precision of various schemes and evaluation of precipitation forecast in iran

abstract: in this study, it has been tried to test the accuracy of output and hence the model efficiency in the predictions of 24 and 48 hour precipitation forecasting by choosing different schemes be assessed. therefore, in order to test the accuracy of model product, two conditions of rainfall precipitation and lack of rainfall precipitation were considered. four thresholds were taken. adaptive table and threat scores were calculated. the final results of the analysis are summarized. the results indicate that among different configurations, the model output for the two configurations of gdmyj and kfmyj which in both of them boundary layer scheme mellor-yamada-janjic were used, are closer to the truth and their accuracy are more acceptable. then proportion correct (pc) for the four thresholds, without precipitation (≤ 1.0), less than or equal to 1 mm (1 ≥ and> 1 .0), less than or equal to 10 mm (10 ≥ and> 1) and more than one, and more than 10 mm (