Hydrogeological study for the quantification and protection of water resources (central­southern Marche)

The recharge of an aquifer is most important to evaluate for understand the availability of the resource and for planning its use over the time. In general indirect methods are widely used, because these are based on the rainfall, evapotranspiration and runoff data. These three parameters are not always simple to evaluate in relation to the possible presence of errors in the available data, malfunction of instruments or difficult to make a monitoring in relation to the complexity of the area, with consequently uncertainty on the results. So in such situations the use of a direct method could be useful to evaluate an accurate result of the aquifer recharge. A commonly used method is based on the analysis of the spring hydrographs, taking into account directly the outflow at the spring. In this work will be apply a quantitative approach in order to evaluate an average recharge value for the Tennacola springs.