The Mississippi River Delta has been continuously losing land since the 1930s due to several factors, chief of which is the reduced sediment supply. A few recent studies have estimated individual components of short-term sediment transport, i.e., bedload and suspended load, separately for some locations along the Lowermost Mississippi River (LmMR, commonly considered as the last 500-km reach of...

Mudstones make up the majority of the geological record. However, it is difficult to reconstruct the complex processes of mud deposition in the laboratory, such as the clumping of particles into floccules. Using flume experiments, we have investigated the bedload transport and deposition of clay floccules and find that this occurs at flow velocities that transport and deposit sand. Deposition-p...

In this paper, we are concerned with models for sedimentation transport consisting of a shallow water system coupled with a so called Exner equation that described the evolution of the topography. We show that, for some model of the bedload transport rate including the well-known Meyer-Peter and Müller model, the system is hyperbolic and, thus, linearly stable, only under some constraint on the...

Abstract Vegetation present in the water streams, on banks and floodplain areas largely affects river hydraulics. Indeed, vegetation significantly influences hydrodynamics, sediment transport, bedforms, pollutant transport. Environmental management of rivers requires an understanding various processes predictive capabilities models. In past, many studies were conducted, especially laboratory se...

A three-dimensional moment analysis defines both particle mobility and the average orientation angle of moving bedload particles in meander bends. Accordingly, under identical bed shear stress and near-bed streamline orientation angle on a side slope, bedload particles of different sizes move in different directions. This sorting mechanism has been verified in the sharp meander bends of Fall Ri...

A long wave run-up model is applied to calculations of wave-induced flow velocities, sediment transport rates and bottom changes in a swash zone. First, properties of the water tongue motion and resulting lithodynamic response are analysed theoretically. Next, an attempt is made to run the model for the natural conditions encountered on the south Baltic Sea coast. The Lagrangian wave-induced ve...