Remote sensing applications to hydrology: groundwater

The traditional use of remotely sensed image interpretation lies in the qualitative characterization of hydrogeological mapping units and the detection of specific features. Most applications pertain to crystalline basements, limestones and Quaternary volcanic terrain. More recent developments pertain to groundwater emergence in the discharge areas of groundwater flow systems, using thermal and multispectral imagery, and to the management of groundwater. For the latter, spatial recharge patterns and contamination assessment will focus attention on defining the parameters of vegetation and terrain mapping units and on monitoring hydrogeologically relevant surface features embedded in spatial groundwater models.