Grain-Size-Selective Aeolian Sand Transport on a Nourished Beach

The grain-size-selective aeolian processes that take place after a beach nourishment were studied on the island of Ameland in the Netherlands. The beach and foredunes were sampled both before and after nourishment. Grain-size distributions of surface and subsurface sand, wind-laid sand and sand in transport were analysed. The unreworked fill is only moderately sorted and exhibits a large spatial variation. Marine reworking results in a decrease of shell fragments and a decrease in fines on the foreshore, with the exception of the swash mark. During aeolian sand transport, aeolian decoupling re... Mehr ...