Estimation of permeable pathways and water content using tomographic radar data

Near‐surface environmental investigations often require monitoring of the spatial distribution of water content and identification of preferential fluid flow paths. Water content estimates are needed, for example, to model and predict pollutant transport through the vadose zone and to subsequently design an efficient and reliable remediation plan. The characteristics of preferential flow paths, as well as the location and geometry of these features, are necessary to model and predict flow and transport in complex geological media such as fractured or strongly heterogeneous porous systems.