Pre- and post-nourishment morphologic behaviour along the Dutch and Danish North Sea coast

In this research, eigenfunction analysis of cross-shore transect data measurements has been performed to investigate the influence of shoreface nourishments on nearshore morphologic behaviour, including sandbar migration. By using eigenfunctions analysis, dominant modes of variation (eigenfunctions) have been determined. The temporal component corresponding to the eigenfunctions (weightings) enables to examine the development of the nearshore morphology over time in terms of the shape of the eigenfunctions. The first eigenfunction, the most dominant pattern of variation, strongly resembles the time-averaged profile while the second and third eigenfunction generally account for migrating nearshore sandbars.