MORPHOMETRIC CHARACTERISTICS OF THE RIVER BASIN, FLOOD-PLAIN, AND CHANNEL, AND SEDIMENT TRANSPORT BY STREAMS

Abstract

The morphology of design stream section has a predominant impact on the transport of bottom sediments. The estimation of the validity of the basic formulas for calculation of sediment discharge, fulfilled on the basis of experimental data, showed that errors in calculations exceed hundreds of percent on the average with the maximum up to thousand of percent. The main reason of this - disregard of the effect of interactions of river-bed and floodplain flows and of specific features of these landforms. The authors suggest entering into these formulas the correction indexes, which correct the results by the factors of section morphology.