INVERSE METHODS in VADOSE ZONE HYDROLOGY
Inverse methods provide a new way for obtaining the parameters of the soil-water characteristics needed for modeling flow and transport in the vadose zone. Care must be taken to choose the right experiments in order to have a well-posed inverse problem. In this paper we evaluate several possible transient laboratory experiments for their feasibility in use with inverse methods. This is done by looking at the response surfaces for the van Genuchten parameters for several proposed experiments including upward infiltration, the one-step outflow and step-wise inflow.