Approccio multi-scala per la definizione delle caratteristiche idrogeologiche degli acquiferi fessurati

This works aims at applying a methodology to characterize the fracture network in granitic rocks in a pilot area on the South of Sardinia. The fracture network has been characterized through a multiscale approach using digital photogrammetry and field measurements of fracture parameters. The digital photogrammetry allowed to generate a digital elevation model (DEM) of high resolution (5m), orthophotos and then the digitalization of over 900 lineaments. The orientation and the length were calculated for the lineaments. The fractures field survey provided complementary information regarding to the orientation, the aperture, the spacing and the roughness of the fractures.