GRAIN-SIZE SORTING IN THE SWASH ZONE ON UNEQUILIBRIUM BEACHES AT THE TIMESCALE OF INDIVIDUAL WAVES

Abstract

In comparison with hydrodynamics of the swash motion, measurements of sediment load using conventional method can be highly problematic, due to the difficulties, particularly wets and dries, very small water depths, aerated and high velocity, in measurements. For this reason, it is not clear that the sediment transport for each size of particle and sediment sorting in the swash zone. The purpose of this study is to investigate process of grain-size sorting in the swash zone at the time scale of individual waves in laboratory.