Application of different computer models to the study of solute transport in a vertical profile of Madrid aquifer

The Madrid aquifer is in a large tectonic basin filled with continental tertiary deposits with a thickness up to almost 4 Km. The area is over 4000 Km 2. Annual precipitation and temperature are 500 mm and 15°C, respectively. Some vertical profiles may be considered representative of the hydrogeologic system. The preliminary results of applying a finite-differences flow model, a mixing-cell model and a method of characteristics model to a vertical profile are shown.