Measurement of changes in shape and volume of the Cabedelo spit, Douro river mouth. The Cabedelo is one of the most impactful Portuguese spits. Using DSAS, it was possible to measure rigorously its movement over the last years. The spit increased significantly in size after the construction of the Douro jetties. The Programa COSMO allows users access to Digital Elevation Models of great detail, opening the poss...