Pour une methodologie des evaluations de l'evapotranspiration

Evaluating evapotranspiration in a river basin is an urgent and important problem which implies, among other things, an analysis and a comparison between different estimates. But, while comparing various methods, care must be taken to define homogeneous sets, which actually converge towards a common aim. For this reason, a few basic principles are given to guide the choice of homogeneity criteria.