Modelling the Evaporation Flux from Shallow Sandy Aquifers

A mathematical model based on Richard’s equation and the soil hydraulic properties was developed in order to understand the influence of the soil depth to the water table on the maximum potential evaporative flux through the unsaturated zone. The model was applied on shallow aquifers using different types of sandy soils with hydraulic properties available from literature. Simple equations are presented to estimate the maximum evaporation from shallow sandy water table aquifers.