Estimating the morphological changes in fluvial beds by means of differential SAR interferometry

We investigate the potentialities of differential SAR interferometry (DInSAR) to estimate the morphological changes of the channel bed induced by processes of erosion and deposition. The Cellina stream (North-East Italy) has been chosen as a test site. The stream has a braided channel morphology with a gravel bed. A set of ERS-1/2 SAR images acquired in this area has been interferometrically processed. The DInSAR analysis enabled areas of erosion and sedimentation to be mapped.