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Zerfu, T. (author), Beevers, L. (author), Crosato, A. (author), Wright, N. (author)
This paper considers the erodible river corridor, which is the area in which the main river channel is free to migrate over a period of time. Due to growing anthropogenic pressure, predicting the corridor width has become increasingly important for the planning of development along rivers. Several approaches can be used to predict the future...
journal article 2015
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Omer, A.Y.A. (author), Ali, Y.S.A. (author), Roelvink, J.A. (author), Dastgheib, A. (author), Paron, P. (author), Crosato, A. (author)
Roseires Reservoir, located on the Blue Nile River in Sudan, is the first trap to the sediments coming from the vast upper river catchment in Ethiopia, which suffers from high erosion and desertification problems. The reservoir has already lost more than one-third of its storage capacity due to sedimentation in the last four decades. Appropriate...
journal article 2015
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Omer, A.Y.A. (author), Ali, Y.S.A. (author), Roelvink, J.A. (author), Dastgheib, A. (author), Paron, P. (author), Crosato, A. (author)
Discussion paper. Roseires Reservoir, located on the Blue Nile River, in Sudan, is the first trap to the sediments coming from the upper catchment in Ethiopia, which suffers from high erosion and desertification problems. The reservoir lost already more than one third of its 5 storage capacity due to sedimentation in the last four decades....
journal article 2014
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Singh, U. (author), Crosato, A. (author), Giri, S. (author), Hicks, M. (author), Mynett, A. (author)
Recent studies have shown that the river bed topography is very sensitive to the composition of bed sediment. So, human interventions and natural processes leading to changes in sediment size grading might result in morphological adjustments of river reaches. This study deals with the effects of changing sediment size grading on the braiding...
conference paper 2013
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Ali, Y.S.A. (author), Omer, A.Y.A. (author), Crosato, A. (author)
Roseires Reservoir is located on the Blue Nile River, in Sudan (figure 1). It is the first trap to the sediments coming from the upper catchment in Ethiopia, which suffers from high erosion and desertification problems. The reservoir lost already more than one third of its storage capacity due to sedimentation in the last four decades. This is a...
conference paper 2013
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Devkota, L. (author), Crosato, A. (author), Giri, S. (author)
conference paper 2013
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Southgate, H.N. (author), Crosato, A. (author)
This paper contains an analysis of a long-duration experiment that shows the evolution of alternate bars in a straight channel. The theoretical predictions are based on a weakly non-linear theory of the morphological development. Both the experiment and theory have several innovative features.
conference paper 2013
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Vargas Luna, A. (author), Uijttewaal, W.S.J. (author), Crosato, A. (author), Tanczos, I.C. (author), De Vries, M. (author)
conference paper 2013
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Devkota, L. (author), Crosato, A. (author), Giri, S. (author)
Humans have utilized water resources for millennia by modifying natural river courses and such interventions have greatly influenced not only river flows and sediment fluxes, but also the overall river morphology. Situated in the Nepal's eastern Ganges region, the braided Koshi River is unique among the other rivers, because of the high...
journal article 2012
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Vargas Luna, A. (author), Crosato, A. (author), Uijttewaal, W.S.J. (author)
conference paper 2012
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Ali, Y.S.A. (author), Roelvink, J.A. (author), Wright, N.G. (author), Mohamed, Y.A. (author), Crosato, A. (author)
In the Nile River Basin, upstream runoff variability is an acute issue to downstream countries, since these countries are almost entirely dependent on Nile waters. Cooperative management of the Nile waters has become urgent, considering climate variations (Conway, 2005; Yates & Strzepek, 1998 a) and the necessity to use the water resource for...
conference paper 2012
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Crosato, A. (author), Desta, F.B. (author), Cornelisse, J. (author), Schuurman, F. (author), Uijttewaal, W.S.J. (author)
Migrating alternate bars form in alluvial channels as a result of morphodynamic instability. Extensive literature can be found on their origin and short-term development, but their long-term evolution has been poorly studied so far. In particular, it is not clear whether migrating bars eventually reach a (dynamic) equilibrium, as in previous...
journal article 2012
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Crosato, A. (author), Mosselman, E. (author), Desta, F.B. (author), Uijttewaal, W.S.J. (author)
journal article 2011
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Crosato, A. (author), Desta, F.B. (author), Cornelisse, J. (author), Uijttewaal, W.S.J. (author)
Migrating alternate bars form in alluvial channels as a result of morphodynamic instability. Extensive literature can be found on their origin and short-term development, but their long-term evolution has been poorly studied so far. In particular, it is not clear whether they eventually reach an equilibrium shape, since short-term experiments...
conference paper 2011
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Crosato, A. (author), Rajbhandari, N. (author), Comiti, F. (author), Uijttewaal, W.S.J. (author)
Wood transport in rivers, typically occurring during flood events, represents a relevant hazard for its potential to create obstruction at bridges and narrow cross-sections. Therefore, the understanding and prediction of entrainment and transport dynamics of woody material of different shapes, density and dimensions is of great interest for...
conference paper 2011
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Crosato, A. (author), Mosselman, E. (author), Desta, F.B. (author), Uijttewaal, W.S.J. (author)
Alternate bars in straight alluvial channels are migrating or nonmigrating. The currently accepted view is that they are nonmigrating if the width-to-depth ratio is at the value of resonance or if the bars are forced by a persistent local perturbation. We carried out 2-D numerical computations and a long-duration mobile-bed flume experiment to...
journal article 2011
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Crosato, A. (author), Getaneh, A.A. (author), Desta, F.B. (author), Uijttewaal, W.S.J. (author), Le, U. (author)
The current view is that migrating bars are the result of morphodynamic instability in straight or mildly-sinuous alluvial channels and are therefore an inevitable feature of alluvial river beds. Steady bars, instead, require some external forcing or specific morphodynamic conditions to develop. Yet, recent numerical tests showed that steady...
conference paper 2010
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Villada Arroyave, J.A. (author), Crosato, A. (author)
The current river management policy in the Netherlands is to give rivers more space, mainly by main channel widening and floodplain lowering. The aim is to reduce flood water levels and to create more favourable conditions for river ecology. However, the effect on water levels gradually disappears due to sedimentation and vegetation growth on...
journal article 2010
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Samir-Saleh, M. (author), Crosato, A. (author)
Flume experiments and field observations demonstrating the effects of vegetation on river planforms are reported in literature, but numerical studies of these effects at the river scale are lacking. We investigated the effects of vegetation in a 2D morphodynamic model using submodels for flow resistance and colonisation of newly formed deposits....
conference paper 2010
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Duran, R. (author), Beevers, L. (author), Crosato, A. (author), Wright, N. (author)
Lack of data is often considered a limitation when undertaking morphological studies. This research deals with morphological studies of small rivers experiencing bank erosion processes when only limited data are available. A reach of the meandering gravel-bed river Irwell (United Kingdom) is taken as a case study in order to analyze the bank...
conference paper 2010
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