LONGSHORE SAND TRANSPORT

Various reliable data sets from sites (USA and Netherlands) have been selected to analyse the longshore transport process and to establish the relationship between wave height, wave incidence angle and longshore transport, yielding a relatively simple transport formula. The data set was too small to detect any influence of particle size, wave period and profile shape. These aspects were studied by using the results of a detailed process-based model, which were parameterized and implemented in the simplified formula. The main overall result is a general expression for longshore transport of sand and gravel, including the effects of profile slope and tidal velocity.