Inverse modeling of groundwater flow and groundwater mass transport

Groundwater flow and groundwater mass transport models try to predict the behavior of groundwater and groundwater contaminants as good as possible.Unfortunately, model predictions and especially predictions of contamination, are not very reliable in many cases.One of the reasons of the erroneous predictions is the heterogeneity of the subsurface.The heterogeneity of the subsurface is in most cases not well known.Direct measurements of the soil properties at such a small scale that they describe the heterogeneity good enough demands and enormous amount of measurements and consequently, it is very expensive.