By improving numerical representations of coastal circulation, sediment properties, and waves, we seek to develop reliable estimates of sediment concentration, transport and deposition. Efforts to include sediment transport calculations within three-dimensional numerical hydrodynamic models can increase our ability to predict suspended sediment concentrations, water column turbidity, and seabed...

It is important to understand the fate of terrestrial sediment into the coastal ocean, because it determines for example the seabed properties and the turbidity of the water column. Several recent initiatives, such as NOPP Community Sediment Transport Model, MURIUnderstading Wave-Mud Interaction and Tidal Mud Flats DRI have put forward new outstanding science and technical questions for coastal...

Foredune volume is an important factor for coastal safety and depends on the balance between erosion through wave attack and sediment input via aeolian transport. Dune erosion can be simulated with good accuracy, but predictions of aeolian sediment transport into the foredunes are still difficult to make. As part of a larger project that aims to model foredune development over decades, the goal...

Historical flow and suspended-sediment transport data from more than 2,900 sites across the United States have been analyzed in the context of estimating flow and suspended-sediment transport conditions at the 1.5-year recurrence interval flow (Q1.5). This is particularly relevant with the renewed focus on stream restoration activities and the urgency in developing water-quality criteria for se...

SANCHEZ, A. and WU, W., 2011. A Non-Equilibrium Sediment Transport Model for Coastal Inlets and Navigation Channels. In: Roberts, T.M., Rosati, J.D., and Wang, P., (eds.), Proceedings, Symposium to Honor Dr. Nicholas C. Kraus, Journal of Coastal Research, Special Issue, No. 59, pp. 39-48. West Palm Beach (Florida), ISSN 0749-0208. This paper presents a depth-averaged sediment transport model wi...

the mechanism of flow and sediment transport in channel bend is much complex. because of secondary current, the sediment moves away from outer bank toward inner bank and therefore outer bank of the bend is one of best positions for lateral diversion. in this paper, the mechanism of sediment transport was simulated with ssiim software in the u shape channel with lateral intake. in order to verif...

[1] A mechanistic model is derived for the rate of fluvial erosion into bedrock by abrasion from uniform size particles that impact the bed during transport in both bed and suspended load. The erosion rate is equated to the product of the impact rate, the mass loss per particle impact, and a bed coverage term. Unlike previous models that consider only bed load, the impact rate is not assumed to...

Understanding bed load transport fluctuations in rivers is crucial for development of a transport theory and for choosing a sampling interval for “mean” transport rates. Field-scale studies lack sufficient resolution to statistically characterize these fluctuations, while laboratory experiments are limited in scale and hence cannot be directly compared to field cases. Here we use a natural-scal...