The Evaluation of Various Methods of Interpolation with the aim of Estimating Precipitation Data of Esfahan Province

Commonly almost in many research cases in which meteorological data is required; the interpolation reconstruction have been used, because of lack or limitation of meteorological stations in the whole study area. The main object of present research is evaluation of different interpolation methods to prepare rainfall map of Esfahan province. We used normal rainfall data of province and regression, IDW, Spiline, Kriging methods. We used RMSE for determination of the best method rainfall Interpolation with comparing real and estimated data. The results show that the elevation has the lowest and the Kriging has the highest error in rainfall maps.