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Showing 1 to 11 of 11 for “"River Morphodynamics"”.
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Disclose river morphodynamics processes through experiments
Rivers’ behavior is increasingly of interest to wide engineering and scientific communities. In fact, fluvial dynamics have an impact on infrastructure and anthropic environments as well as on natural habitats. In addition, the economic values of river as routes of commerce is great, as is the …
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Meandering rivers morphodynamics - integrating nonlinear modeling and remote sensing
… decades, the systematic investigation of the morphodynamics of meandering rivers mostly involved the theoretical-analytical methodology. The development of analytical models enabled the definition of equilibrium conditions, stability and evolution of river meanders and to investigate the …
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Temporal and Spatial Variation of Fine Sediment Infiltration in a Gravel-Bed River
Pulses of fine sediment in gravel-bedded rivers can cause extensive fine sediment infiltration (FSI), potentially altering river morphodynamics and aquatic ecosystems. FSI occurs when sand and silt are deposited into void spaces between larger grains at the riverbed. Flume and theoretical modeling …
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Temporal and Spatial Variation of Fine Sediment Infiltration in a Gravel-Bed River
Pulses of fine sediment in gravel-bedded rivers can cause extensive fine sediment infiltration (FSI), potentially altering river morphodynamics and aquatic ecosystems. FSI occurs when sand and silt are deposited into void spaces between larger grains at the riverbed. Flume and theoretical modeling …
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Morphodynamics of large anabranching rivers : the case of the Madeira River, Brazil
… are the dominant channel pattern of large rivers worldwide. The top nine largest rivers of the world by water discharge, in particular, all develop anabranching channels. Given the limited understanding on large river morphodynamics and the mechanisms of formation and process of …
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Use of numerical simulations to investigate the performance of a virtual acoustic Doppler current profiler in characterizing flow
… the knowledge base already held by the river research and velocity flow mapping communities. The continued focus on using ADCPs to characterize flow will greatly advance the study of fluvial geomorphology and river morphodynamics. It is important to understand the performance of the …
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Systematic connectivity in single thread meandering alluvial rivers: statistical generalization of hydraulic geometry
… in alluvial meandering streams as a solution to river navigability. These types of rivers are naturally ordered systems, which exhibits self-similarity amongst many scales. Four river sections and four experimental runs were used to investigate patterns in depth connectivity with varied path …
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Morphodynamics and driftwood dispersal in braided rivers
… is widely recognized as a relevant component of riverine systems due to its complex interactions with flow, sediment transport and vegetation dynamics. In-channel large wood has a relevant geomorphic and ecological role as it enhances morphological diversity and creates a variety of physical …
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Dynamics of river meanders: bankfull geometry and planimetric configuration
Meandering rivers are ubiquitous on the surface of the Earth and are key elements of every ecosystem they are embedded in. They distribute water, sediments and nutrients all over the floodplain, they provide a mean of transportation and energy production, and they offer many other ecosystem …
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River bifurcations: key processes, timescales and evolutionary trajectories
River bifurcations are constituent components of multi-thread fluvial systems, playing a crucial role in their morphodynamic evolution. As highlighted by several field studies and laboratory investigations, natural bifurcations tend to display unbalanced configurations, in which one branch carries …
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From meander bend to oxbow lake: morphodynamics and sedimentology of chute cutoffs
… locally shortens and straightens a meandering river channel, excavating a large volume of floodplain sediment as the chute channel deepens and widens. Bar development at the upstream and downstream ends of the cutoff channel leads to abandonment of the bend and formation of an oxbow lake, …