Sediment Genesis, Transportation, and Deposition

In riverine morphology, sediment plays as an important role in reframing riverbed topography; with its dynamics, ecology, and hazardous issues. The solid runoff of a water body signifies solid substance, present in river flows or shifting water bodies. The runoff from solid water bodies can be examined through various approaches: static indicators (water clarity), dynamic indicators (floating particles and bed load, overall sediment output), and indirect dynamic indicators (alterations in bed markings and banks evolution). The redistribution of the bed and suspended sediment load in a channel is determined by the transporting capacity of a flow, which is the main component of channel dynamics. The main sediment-carrying capacity of landslide-generated catchment sediments associated with streams is deposited in the foothill region. Compared to River Lish, where sediment aggradation occurs close to the rail bridge, reducing the distance between the riverbed and the rail bridge, the scouring in River Chel at the rail and road bridges can be explained by the grain size distribution of the bed sediments. The bed sediment’s similarity to the catchment region’s sediment chemical composition indicates that the landslide produced sediments were deposited in the bed area, which caused the riverbed topography to change in response to bridge contractions across the bridges.