A Double Scale Methodology to Investigate Flow in Karst Fractured Media via Numerical Analysis: The Cassino Plain Case Study (Central Apennine, Italy)

Figure 4

Hydrogeological section for numerical purposes from Centamore et al. [37] modified on the basis of additional data [23–25, 44] and imposed boundary condition. Red lines indicate the faults. An inner gradient of 0.5% has been set from Cairo Mt. to Gari Spring (G1, G2, and G3) and from Camino Mt. to Peccia Springs (P), no flow condition (Neumann condition at the bottom and at the lateral edges), and a head dependent boundary (Cauchy condition) along the topographic surface. Dolostone and limestone units (DU and CU) represent the aquifer and terrigenous unit (TU) and Quaternary unit (QU) the aquiclude and the aquitard of the system.