Figure 9
Correlation of interannual shoreline variability against field data for different shoreline proxies and alonghore-averaging windows. Validation of SM SDS interannual variability against in situ surveys over 2003–2022 at Truc Vert beach, southwest France. (a) Mean beach profile, with the horizontal lines indicating the ± standard deviation of shoreline position at 0.5-m elevation intervals; (b) correlation coefficient R (coloured) between SM SDS and yearly-averaged in situ shoreline at Truc Vert, for different in situ shoreline proxy (− 1 m \(<z_{prox}<\) 6 m) and different SM alongshore-averaging distance L. (c,d) Corresponding \(z_{prox}\)-averaged and L-averaged correlation R, respectively. In (c,d) the tick black line shows the maximum correlation, and the grey dots show the mean with the grey lines the ± standard deviations.
