Estimation et cartographie de l’évapotranspiration potentielle

Abstract

The evapotranspiration phenomenal is a one of hydrological quotient entered in the water cycle, it’s contains two parts: the first represent evaporation of saturated ground and aquatic area which the second one terminology is transpiration it is a physiological operation of the vegetal species.This complicated permutation of this phenomenon has then specified one, when it was very complicate in reality computed. However the obligation to return to many empirical relations for estimated this notion of water cycle becomes indispensable, but these relations required sometimes several climatic elements to attain in exactness results to use in evapotranspiration in various areas like hydrology, agricultural hydraulics and management. In this research, we have studied different steps to estimate spatial and temporal of reference evapotranspiration.