Vertical sorting fluxes and the resulting organisation of grain size fractions over bed elevations, i.e. the vertical sorting profile, influence bedform dimensions and the bed surface composition. As a result, they will affect the bed roughness, the rate and composition of the sediment transport, the large-scale river morphology, and water levels during floods. An important problemof presentmorphologicalmodel systems for rivers with non-uniform sediment is their neglect of vertical sorting fluxes other than through net aggradation or degradation. The objective of the present study is to develop a method in order to better account for vertical sorting processes in the river bed.
|Award date||6 Mar 2003|
|Place of Publication||Enschede|
|Publication status||Published - 6 Mar 2003|