M2 Hydrogéophysique – 3 décembre 2008 Modeling of GPR data by FDTD 0,98 m 2 m 1,40 m Basement of the sand box (air, wood and sand) Sand saturated with water (h=35 cm) Capillary Fringe (h=32 cm) Dry sand, = 4,6 (h=32 cm) Sand saturated with gasoil, = 3,8 Sand mixted with air and gasoil, = 4 Sand mixted with water and gasoil, = 15 Steel pipe Model used for modeling of profile T0 12 days (in May 2004) after fuel injection.