USING INVERSE MODELLING TO REDUCE UNCERTAINTY ON THE RECHARGE TO AQUIFERS. THE CASE OF PETRIGNANO D'ASSISI (ITALY)

In this paper we propose to reduce the uncertainty on the recharge of a porous regional aquifer, integrating its estimation with the results of the numerical simulation of different flow situations (both in stationary and transient conditions) using several sets of piezometric head data as targets for inverse problems. The methodology has been applied to the case study of Petrignano d'Assisi (Umbria, Italy).