Sensitivity of C-Band SAR Polarimetric Variables to the Directionality of Surface Roughness Parameters

Surface roughness is an important factor in many soil moisture retrieval models. Therefore, any mischaracterization of surface parameters (root mean square height, RMSH, and correlation length, ?) may result unreliable predictions estimations. In environments, but particularly agricultural settings, show different behaviours with respect to the orientation or azimuth. Consequently, relationship between SAR polarimetric variables vary depending on measurement orientation. Generally, obtained for SAR-based studies estimated using pin profilers that may, not, be collected careful attention satellite look angle. this study, we characterized multi-azimuth mode a terrestrial laser scanner (TLS). We orientations then examined sensitivity parameters; further, compared these results profiles traditional profilers. The showed were more sensitive at higher incidence angles (?). Moreover, when measurements conducted angle RADARSAT-2, significant correlations observed parameters. Our also indicated TLS can represent reliable than profiler