ABSTRACT
Although the quantities of water and sediment in natural rivers vary through space and time, most studies have addressed the response of a channel to steady flow conditions. Engineers wish to employ stable channel theories which use steady flow to represent the effects of the natural unsteady flow conditions in the river. Relationships for steady flow conditions are then used to predict the channel form. The main difficulty that arises in this hypothesis is to determine which steady flow represents the integrated effects on channel morphology of the natural variation in water and sediment discharges.
