Tensor Hydraulic Conductivity Estimation for Heterogeneous Aquifersn under Unknown Boundary Conditions

摘要

A physically based inverse method is developed using hybrid formulation and coordinate transform to simultaneously estimate hydraulic conductivity tensors, steady-state flow field, and boundary conditions for a confined aquifer under ambient flow or pumping condition. Unlike existing indirect inversion techniques, the physically based method does not require forward simulations to assess model-data misfits. It imposes continuity of hydraulic head and Darcy fluxes in the model domain while incorp