Publications associées à Depositional environment

The signature of randomness in riparian plant root distributions

Paolo Perona, Lorenzo Gorla, Massimiliano Schwarz, Stefania Tron

Known as "the hidden half", plant roots are fundamental contributors to the riparian ecosystem functioning. Roots show an extraordinary architectural complexity that recalls their remarkable ability to adapt to environmental heterogeneity, resources availa ...

American Geophysical Union2015

Ecomorphodynamic conditions for the emergence of river anabranching patterns

Paolo Perona, Benoît Crouzy, Paolo d'Odorico

The appearance of the regular vegetated ridge patterns observed in some ephemeral rivers of semi-arid regions (Nanson, Tooth, & Knigthon 2002) has previously been explained by hydraulic arguments (optimization of the bed load transport capacity, see Huang ...

Crc Press-Taylor & Francis Group2014

Influence of geometry shape factor on trapping and flushing efficiencies

Anton Schleiss, Sameh Ahmad Kantoush

The trap efficiency of a shallow reservoir depends on the characteristics of the inflowing sediments and the retention time of the water in the reservoir, which in turn are controlled by the reservoir geometry. With the purpose of controlling the trapped a ...

CRC Press/Balkema2014

Spatial patterns of aeolian sediment deposition in vegetation canopies: observations from wind tunnel experiments using colored sand

Katherine Colby Leonard

In environments affected by wind erosion, plants act as traps for aeolian sediment, which leads to a small-scale mosaic of depositional and erosional sediment transport regimes. This wind tunnel study used colored sand to visualize spatial patterns of sedi ...

Elsevier2013

Coupling between flow and sediment deposition in rectangular shallow reservoirs

Anton Schleiss, Erica Camnasio, Michel Pirotton

Flow velocity and sedimentation patterns were investigated experimentally and numerically in shallow rectangular reservoirs with different asymmetric locations of the inlet and outlet channels. Velocity fields were measured in the entire reservoir, both fo ...

Taylor & Francis Ltd2013

The Hairsine-Rose Soil Erosion Model: Analysis for Total Sediment Concentration

David Andrew Barry, Seifeddine Jomaa

The Hairsine-Rose (HR) model considers rainfall- and shear-driven erosion of the soil bed, overland transport and sediment deposition. Here, we consider the model for rainfall-driven erosion. The model takes account of the different erodabilities of the or ...

2013

Sedimentological processes in the Rhone Delta subaquatic canyons (France-Switzerland)

Nicolas Le Dantec

Deltas are very sensitive environments and highly vulnerable to variations in water discharge and the amount of suspended sediment load provided by the delta-forming currents. Human activities in the watershed, such as building of dams and irrigation ditch ...

2012

Sedimentary processes and triggering mechanisms of debris flows in subaquatic canyons in Rhone delta (Lake Geneva, Switzerland, France)

Nicolas Le Dantec

Subaquatic canyons in deltas are major pathways for the transport of particles from land to the deep basins. They represent active environments with frequent deltaic failures and mass-movement deposits potentially leading to hazardous (tsunami waves) and e ...

2012

Numerical experiments on breaking waves on contrasting beaches using a two-phase flow approach

David Andrew Barry, Roham Bakhtyar

A mechanistic understanding of beach environments needs to account for interactions of oceanic forcing and beach materials, in particular the role of waves on the evolution of the beach profile. A fully coupled two-phase flow model was used to simulate nea ...

Elsevier2012

Flow and sediment dynamics in bed discordant channel confluences

Anton Schleiss, Koen Blanckaert, Marcelo Leite Ribeiro

Confluences between small steep tributaries with dominant supply of poorly sorted sediment and larger main channels with dominant flow supply, which are characterized by a pronounced bed discordance, have not yet been considered in the literature. The hydr ...

Tsinghua University Press2011

Depositional environment

Ecomorphodynamic conditions for the emergence of river anabranching patterns

Coupling between flow and sediment deposition in rectangular shallow reservoirs

Sedimentary processes and triggering mechanisms of debris flows in subaquatic canyons in Rhone delta (Lake Geneva, Switzerland, France)

Flow and sediment dynamics in bed discordant channel confluences

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The signature of randomness in riparian plant root distributions

Ecomorphodynamic conditions for the emergence of river anabranching patterns

Influence of geometry shape factor on trapping and flushing efficiencies

Spatial patterns of aeolian sediment deposition in vegetation canopies: observations from wind tunnel experiments using colored sand

Coupling between flow and sediment deposition in rectangular shallow reservoirs

The Hairsine-Rose Soil Erosion Model: Analysis for Total Sediment Concentration

Sedimentological processes in the Rhone Delta subaquatic canyons (France-Switzerland)

Sedimentary processes and triggering mechanisms of debris flows in subaquatic canyons in Rhone delta (Lake Geneva, Switzerland, France)

Numerical experiments on breaking waves on contrasting beaches using a two-phase flow approach

Flow and sediment dynamics in bed discordant channel confluences

Sedimentological processes in the Rhone Delta subaquatic canyons (France-Switzerland)

The Hairsine-Rose Soil Erosion Model: Analysis for Total Sediment Concentration

The signature of randomness in riparian plant root distributions

Spatial patterns of aeolian sediment deposition in vegetation canopies: observations from wind tunnel experiments using colored sand

Numerical experiments on breaking waves on contrasting beaches using a two-phase flow approach

Influence of geometry shape factor on trapping and flushing efficiencies