Retrieval of Soil Moisture Profile above Water Table Using Scattered Wave Signal Structure.

This paper aims to retrieve the soil moisture profile above the water table using ground penetrating radar. For the forward model, the Van Genuchten soil saturation model and the generalized refractive mixing dielectric model are used to parameterize the soil saturation profile. The finite-difference time-domain method was used to simulate the electromagnetic signal. The soil moisture profile retrieval was carried out using a look-up table. We demonstrate successful retrieval of soil moisture profile in the presence of noise.