Recently, the influence of wave periods on dune erosion was studied in a series of large-scale physical model tests. In these tests dune erosion was simulated under extreme storm conditions. The aim of the study presented in this paper was to develop dune erosion prediction methods that take effects of wave periods on dune erosion into account. An existing dune erosion prediction method was used as starting point for the development. The obtained prediction method will be used to evaluate the dunes along the Dutch coast, where longer wave periods occur than previously assumed.@en