Hydrogeophysical model calibration and uncertainty analysis via full integration of PEST/PEST++ and COMSOL

Calibration of groundwater models is frequently hampered by limited availability hydrogeological data. Non-intrusive geophysical methods are increasingly used to provide higher spatio-temporal resolution datasets for identification hydrological processes and estimation hydraulic properties. In model calibration performed through joint or coupled hydrogeophysical inversion, the supplemented with auxiliary this work we propose a methodological approach perform inversion integrating software PEST/PEST++ COMSOL Multiphysics using MATLAB. The strategy provides multiple options uncertainty analysis relevant broad range environmental models. To illustrate approach, show application in which electrical resistivity jointly borehole data seawater intrusion coastal aquifer.