AN ESTIMATION OF EVAPOTRANSPIRATION BY SIMPLE MODELS IN THE SEMI ARID MEDITERRANEAN ZONE OF THE NORTH-WEST OF ALGERIA

Abstract

Five temperature based models of evapotranspiration were applied and compared to daily measurements obtained by a piche evaporimeter in a mediterranean climate zone of the semi arid type in the north-west of algeria. direct measurements of evaporation obtained by piche on to stations spreading over a period greater than five years (nov.1988 - dec.1993) were corrected by the bouchet. evapotranspiration was calculated according to the following models: blaney-criddle, blaney-criddle (usda), linacre, romanenko and hamon.