Erratum to: Evaluation and calibration of Blaney–Criddle equation for estimating reference evapotranspiration in semiarid and arid regions

Abstract

The complete paragraph in the subheading ''Local calibration'' is replaced as follows: Local calibrationIn order to calibrate the original coefficients BC equation (a, b) using monthly data, a linear regression procedure was adopted. Considering the linear regression between ET 0 as the dependent variable obtained from the FAO-56 PM method as reference, T mean as the independent variable and obtaining the P value from the appropriate table (James 1988), the slope and intercept of the regression line can be calculated for each region and each month of the year (Fooladmand and Ahmadi 2009). Using the local calibrated coefficients (a cal , b cal ) insteadThe online version of the original article can be found under