New sediment continuum measurements in the Brda River (Poland): the results of the functioning of the 50-year Koronowo dam

Abstract Purpose As documented by multiple studies, the construction of artificial reservoirs influences fluvial processes. The hydrographic barrier causes a water regime change, and effects are evident in accumulation sediment reservoir as well intensification erosion process below dam due to lack sediments for transport river. Moreover, use lateral canals on additional transformations river system, excluding part from natural system catchment area. This research aimed determine impact creation functioning Koronowo Reservoir Brda River its canal continuum transport, with particular emphasis suspended sediment. Methods was based analysing available hydrological data measurements concentration during flushing maintenance works into channel. In addition, set morphometric indices obtained through dedicated terrain analysis were necessary understand area’s morphodynamics sources. (SSC), volume (SVC), Sauter mean diameter (SMD) measured LISST-25X, spatial System Automated Geoscientific Analyses (SAGA GIS) software. Results conclusion results combined Connectivity Index evaluation field surveys made it possible identify new sources material supply dam, thus identifying disturbance Research is critical element sustainable management catchment, using controlled operation local supply.