Publications associées à Charge en suspension

Influence of the shear stress on fine sediment exchanges with the substrate using UVP measurements

Giovanni De Cesare, Romain Maxime Dubuis

The dynamic of fine sediment in rivers is closely related to the interactions between fine particles, the riverbed and the flow conditions. The accumulation of fine sediment in the riverbed reduces vertical water exchanges and can have detrimental effects ...

2023

The clogging of riverbeds: A review of the physical processes

Giovanni De Cesare, Romain Maxime Dubuis

Fine sediment represents an important part of the solid flux of rivers. Due to the size of these particles, they are often transported as suspended load. They gradually fill the pores of the substrate forming the hyporheic zone or cover the substrate by se ...

2023

Characterization of Thruster-Induced Turbulence for Fine Sediment Suspension

Giovanni De Cesare, Azin Amini, Montana Marshall, Andre Luis Stakowian

Reservoir sedimentation is a key challenge for storage sustainability because it causes volume loss, affecting hydropower production capacity, dam safety, and flood management. A preliminary EPFL study proposed and studied an innovative device (called SEDM ...

2023

Reduction of riverbed clogging related to sediment flushing

Giovanni De Cesare, Romain Maxime Dubuis

The ecological effects of dams on sediment and river flow have been subject to an increasing attention, leading to the implementation of mitigation measures such as environmental flow release and sediment replenishment. However, fine sediment dynamics have ...

CRC Press/Balkema2023

p Spatio-temporal deposition profile of an experimentally produced turbidity current with a continuous suspension supply

Giovanni De Cesare, Shun Nomura

A turbidity current is a turbulent, particle-laden gravity current that is driven by density differences resulting from the presence of suspended sediment particles. The current travels downslope, bearing a large amount of sediment over a great distance, a ...

IRTCES2022

Parameterizing snow saltation: the exponential decay of the mass flux profile and its relation to the saltation dynamics

Varun Sharma, Michael Lehning, Daniela Brito Melo, Armin Sigmund

Drifting snow events lead to snow redistribution and enhance snow sublimation. Taking into account the importance of snow sublimation to the correct prediction of the surface mass balance, a general consensus has emerged within the scientific community on ...

2022

Present-day sediment dynamics and provenance of the Gornergletscher

François Mettra, Bruno Belotti, Fien De Doncker

Glacial erosion processes shape the Earth’s surface. Nevertheless, the processes that drive glacial erosion and the subsequent export of sediments are poorly understood and quantified. These processes include ice sliding, which controls erosion by abrasion ...

2021

Suspended sediments in Lake Geneva: Observations, settling behaviour and mechanisms in the Rhône River plume

David Andrew Barry, Ulrich Lemmin, Htet Kyi Wynn, Violaine Florette Piton, Valentin Kindschi

In estuaries and marine environments, primary particles are frequently transported as large flocculated particles. This study provides, for the first time, evidence of in situ flocculation in Lake Geneva, a glacier-fed freshwater lake on the Swiss/French b ...

2021

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Charge en suspension

Influence of the shear stress on fine sediment exchanges with the substrate using UVP measurements

The clogging of riverbeds: A review of the physical processes

Stochastic Modeling of Bedload Transport and Bar Development in Shallow Flow: Linear Stability Analysis and Numerical Simulation

Characterization of Thruster-Induced Turbulence for Fine Sediment Suspension

Clogging of riverbed substrates by fine sediment

Reduction of riverbed clogging related to sediment flushing

p Spatio-temporal deposition profile of an experimentally produced turbidity current with a continuous suspension supply

Parameterizing snow saltation: the exponential decay of the mass flux profile and its relation to the saltation dynamics

Present-day sediment dynamics and provenance of the Gornergletscher

Suspended sediments in Lake Geneva: Observations, settling behaviour and mechanisms in the Rhône River plume

Graph Chatbot

Chattez avec Graph Search

The clogging of riverbeds: A review of the physical processes

Stochastic Modeling of Bedload Transport and Bar Development in Shallow Flow: Linear Stability Analysis and Numerical Simulation

Characterization of Thruster-Induced Turbulence for Fine Sediment Suspension

p Spatio-temporal deposition profile of an experimentally produced turbidity current with a continuous suspension supply

Clogging of riverbed substrates by fine sediment

Reduction of riverbed clogging related to sediment flushing

Suspended sediments in Lake Geneva: Observations, settling behaviour and mechanisms in the Rhône River plume

Influence of the shear stress on fine sediment exchanges with the substrate using UVP measurements

Parameterizing snow saltation: the exponential decay of the mass flux profile and its relation to the saltation dynamics

Present-day sediment dynamics and provenance of the Gornergletscher