Comparison of correlation between climate and satellite-baseparameters with reference evapotranspiration (ET۰) in twodifferent climates (Ardabil and Yazd station)

The concept of reference evapotranspiration (ET۰) is crucial in meteorology and water resourcemanagement. ET۰ represents the combined effect of two separate processes: evaporation from the soilsurface and transpiration from plants. The magnitude of ET۰ depends on various weather factors, andunderstanding these factors and their impact on ET۰ is of utmost importance. The study aims tounderstand the sensitivity of ET۰ to changes in climatic parameters in two climates in Iran. The FAOPenman-Monteith equation is used for ET۰ calculation, and correlation analysis is performed by eachinput parameters. The noteabe point here is that although only six climate parameters are involved in theFAO-۵۶ equation, the highest correlation with evapotranspiration in Yazd station was ewsm parameterby R۲=۰.۸۸۷ and in Yazd station was lstd parameter by R۲=۰.۶۲۳.

کلیدواژه ها:

Ardabil ، Climate ، Correlation ، ET۰ ، Satellite Parameters ، Climates ، Yazd.