Comparison Between Dubois and Shi Empirical Models Used for Soil Moisture Estimation for TerraSAR-X Data

It is essential for Earth's environment to predict natural disasters like fires, floods, earthquakes, etc. Our goal is to asses quality of empirical models used in soil moisture parameter retrieval. In this paper we assessed Dubois and Shi empirical model over the river Drava next to the city of Maribor, Slovenia. These models were applied to TerraSAR-X satellite, which is a German national space satellite operating at X-band radar frequency. In order to compare and validate results, field measurements were done with a Pico64 sensor at the time of image capture. As we have concluded, Shi model is preferred when it comes to accuracy of estimated volumetric soil moisture.