River channel formation under condition of various phases of hydrological cycle

Abstract

The paper considers hanges in areal ratio between the hydraulic component of the river flow (expressed in terms of the mean stream velocity in vertical) and the size of lag deposits («channei pavement»), the latter can be numerically presented through values of velocity required to set the bottom deposits in motion, depending on the phase of the hydrological regime. A change in phases of the stream regime results in the reversal of the channel process, which also causes changes in the channel morphology.