| The transport of streambed material has direct impact on surface and subsurface bed composition, the morphology of the channel, and surface and subsurface fluid flow. The details of the channel planform, the composition of the bed surface, and hyporheic flow constitute the essential, organism-scale template for the stream ecosystem. This project focuses on developing our understanding of the transport and sorting of coarse bed material. Our goal is the development of predictive capabilities for modeling sediment dynamics under a range of conditions and extension of these capabilities into models and tools that can support stream restoration design. We organize our research on sediment transport dynamics around gravel, sand, and mix-sized transport.
Research plans
Models for predicting vertical sorting and armoring
Management guidelines for gravel augmentation and sand infiltration
Validation model for mixed-size morphodynamics for homogeneous beds
Strategy for capturing and scaling up local variability
Predictive models of fine sediment transport over coarse beds
Research gathered
Armor persistence
Numerical modeling of performance of main channel as a sediment-recirculating
Tracers as a means for quantifying particle displacement in gravelbed streams
Spawning gravel refresher
Inflitration and flushing of fines in a gravelbed
Riverbed surface patchiness development and dynamics
Experiments on vertical and streamwise dispersion of tracer stones under lower-regime plane-bed equilibrium bedload transport
Modeling the bedload transport response of a gravelbed stream subject to cycled flood hydrographs
Dynamics of the bed surface and development of the armor layer in gravelbed rivers
Physical modeling of gravel augmentation practices | 
