РОЛЬ МОРФОМЕТРИЧЕСКИХ ХАРАКТЕРИСТИК И МОРФОЛОГИИ ПОЙМ В ГИДРАВЛИЧЕСКИХ РАСЧЕТАХ

Morphological structure of the river bed and flood plain determines hydraulic parameters on the given reach of the river. Using morphological and hydraulic parameters of the river bed and flood plain streams one may assess their mean velocity and runoff with sufficient for practical purposes accuracy. The length of the designed river interval should by of sufficient length but less then distance between two adjacent bars. The accuracy of the assessments depends on that of the angle measurements between geometric axes of channel and flood plain and on the scale of the land survey on the designed interval. The morphology of the flood plain is of great importance too, especially the height of the beach barrier edge and the existence of vegetation on it, as they govern the dynamics and directions of the flood plain streams.