Modern Hydrodynamic Models of the Bed Processes

The article discusses specific features of the modern hydrodynamic models of bed processes that implement the principle of active interaction of a water flow and a bed morphometry. The peculiar features of these models' construction and implementation were illustrated by study cases of the Sylva River near the villages of Posad and Ust-Kishert and of the Cheptsa River near the village of Balezino. We have made assessment of the bed morphometry possible changes due to the spring high water passage on the basis of the developed hydrodynamic models. We compared the calculated model values with the observed bed changes. The comparative analysis of the ADH and RiverFlow2D modern calculation modules application effectiveness have been carried out.