Nine polarimetric Radarsat-2 SAR images acquired concomitant to the field work were utilized in the study (Table 1). All images were fine quad-pol products at spatial resolutions ranging from 5.2 to 7.6m. The images varied in incidence angle, with scene centers ranging between 22.3° and 37.0°. General calibration accuracy statistics for RADARSAT-2 are: a radiometric accuracy of approximately 0.3 dB, a 3°phase difference between channels, and cross-pol levels of b −45 dB (Luscombe, 2004, 2009)