A Review of Methods for Estimating Evapotranspiration

Abstract

The problems which characterize the study of evapotranspiration are briefly discussed. Different models which have been used for estimating evapotranspiration are reviewed. They include the eddy correlation model, mass transport model, aerodynamic model, Penman-resistance model and the energy balance model. The utilization of remote sensing for regional evapotranspiration estimation is discussed at length with case studies cited from USA, France, Germany and Kenya.