ABSTRACT

The dynamics of sediment storage in discrete units in non-alluvial channels can be described using simple relationships for a) the ultimate equilibrium state under degradation without sediment supply, and b) the depletion of storage with time towards this state. Such relationships have been demonstrated experimentally, with sediment supply as bed load, for pool and lee-bar storage units. The experiments also show the existence of a significant active storage component in association with the sediment supply. The ultimate storage state and storage depletion relationships, together with simple sediment budgeting, can be used to simulate the variation of storage within the units, and hence the progression of sediment through them under specified discharges and sediment supply rates.