Sensitivity of the radar signal to soil moisture: variation with incidence angle, frequency, and polarization

This study focuses on the variations of the radar sensitivity to soil moisture (d/spl sigma//sup o//dm/sub /spl upsi//) with the radar configuration parameters (frequency, polarization, and angle). An analysis of variance shows that only the polarization significantly influences d/spl sigma//sup o//dm/sub /spl upsi//, which is larger at cross-polarization than at like-polarized configurations.