Articles | Volume 377
Proc. IAHS, 377, 51–56, 2018
https://doi.org/10.5194/piahs-377-51-2018
Proc. IAHS, 377, 51–56, 2018
https://doi.org/10.5194/piahs-377-51-2018

  16 Apr 2018

16 Apr 2018

Morphodynamic simulation of sediment deposition patterns on a recently stripped bedrock anastomosed channel

David Milan et al.

Cited articles

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Coulthard, T. J., Neal, J. C., Bates, P. D., Ramirez, J., Almeida, G. A., and Hancock, G. R.: Integrating the LISFLOODFP 2D hydrodynamic model with the CAESAR model: implications for modelling landscape evolution, Earth Surf. Proc. Landf. 38, 1897–1906, 2013. 
Heritage, G., Tooth, S., Entwistle, N., and Milan, D.: Long-term flood controls on semi-arid river form: evidence from the Sabie and Olifants rivers, eastern South Africa, Proc. IAHS, 367, 141–146, https://doi.org/10.5194/piahs-367-141-2015, 2014. 
Heritage, G. L., Moon, B. P., Jewitt, G. P., Large, A. R. G., and Rountree, M.: The February 2000 floods on the Sabie River, South Africa: an examination of their magnitude and frequency, Koedoe, 44, 37–44, 2001. 
Heritage, G. L., Large, A. R. G., Moon, B. P., and Jewitt, G.: Channel hydraulics and geomorphic effects of an extreme flood event on the Sabie River, South Africa, Catena, 58, 151–181, 2004. 
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Short summary
We present 2D morphodynamic simulations of hydraulics and sediment deposition patterns over an exposed bedrock anastomosed pavement. Alluvial barforms appear to be initiated through sediment deposition in bedrock topographic lows. It is likely that vegetation establishment in these depositional loci increases the cohesive strength of the deposited sediment and captures additional sediment and propagules, eventually leading to greatest thicknesses of alluvium positioned over the bedrock lows.