Sediment transport of coarse particles

Bedload transport: measurement and modelling

Scientific issue In direct connection with developments in hydrometry, the team has made a major effort to measure bedload in rivers, focusing in particular on Alpine rivers where measurement remains complex. Scientific questions Contribution of the different bedload measurements (sampler, hydrophone, tracer) to the understanding of bedload dynamics in alpine rivers How to establish a …

Graded suspension: measurement and modelling

Scientific issue In direct connection with developments in hydrometry, the team has made a major effort to measure sand suspension in rivers, focusing in particular on large rivers (Rhône, Colorado, Mekong, Amazon) Scientific questions Contribution of acoustic measurement (Aquascat, ADCP, HADCP) for the measurement of sand concentration How to establish a sediment rating curve for …

Interactions between sediments of different size

Context In mountain and piedmont hydro-systems, gravel-bed rivers often transport large amounts of fine (silt-sized) sediments. The dynamics of such a sediment mixture is usually described as a simple superposition of fine sediment transport in suspension over a bed-load of gravel. However, the interaction between the two classes of sediment, such as hiding and exposure …