Evaluation of the RadEst and ClimGen Stochastic Weather Generators forLow-Medium Rainfall Regions
Journal of Applied Sciences 7 (19): 2900-2903, 2007
The aim of present study is to generate the daily weather values for maximum and minimum airtemperatures and solar radiation. Two well known weather generators are evaluated here. Data from the fiveIranian synoptic stations having long-term weather records and dry climates have been used to compare theactual data sets with generated one. The accuracy of the different weather generators models was evaluatedby means of three widely used statistics : Correlation coefficient (R), Root Mean Square Error (RMSE) and MeanBias Error (MBE). For maximum and minimum temperatures, Bushehr's data show the lowest RMSE andEsfahan's data show the highest RMSE. For radiation data, RMSEs of all of the stations are very high, exceptfor Esfahan station. Ingenerai, the computed values of temperature are in good agreement with the data derivedby the observation, but the computed values for radiation do not indicate a good agreement with the measureddata.
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