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ESurf | Articles | Volume 8, issue 2
Earth Surf. Dynam., 8, 413–429, 2020
https://doi.org/10.5194/esurf-8-413-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.
Earth Surf. Dynam., 8, 413–429, 2020
https://doi.org/10.5194/esurf-8-413-2020
© Author(s) 2020. This work is distributed under
the Creative Commons Attribution 4.0 License.

Research article 02 Jun 2020

Research article | 02 Jun 2020

Morphological evolution of bifurcations in tide-influenced deltas

Arya P. Iwantoro et al.

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Cited articles

Alebregtse, N. C. and de Swart, H. E.: Effect of river discharge and geometry on tides and net water transport in an estuarine network, an idealized model applied to the Yangtze Estuary, Cont. Shelf Res., 123, 29–49, https://doi.org/10.1016/j.csr.2016.03.028, 2016. 
Baar, A. W., de Smit, J., Uijttewaal, W. S. J., and Kleinhans, M. G.: Sediment Transport of Fine Sand to Fine Gravel on Transverse Bed Slopes in Rotating Annular Flume Experiments, Water Resour. Res., 54, 19–45, https://doi.org/10.1002/2017WR020604, 2018. 
Baar, A. W., Boechat Albernaz, M., van Dijk, W. M., and Kleinhans, M. G.: Critical dependence of morphodynamic models of fluvial and tidal systems on empirical downslope sediment transport, Nat. Commun., 10, 4903, https://doi.org/10.1038/s41467-019-12753-x, 2019. 
Bagnold, R. A.: An Approach to the Sediment Transport Problem from General Physics, USGS Prof. Pap., 42, https://doi.org/10.1017/S0016756800049074, 1966. 
Bertoldi, W. and Tubino, M.: River bifurcations: Experimental observations on equilibrium configurations, Water Resour. Res., 43, W10437, https://doi.org/10.1029/2007WR005907, 2007. 
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We investigated the effect of tides on the morphodynamic evolution of bifurcations in tide-influenced deltas. Using results from a numerical morphodynamic model (Delft3D), we found that tides cause less asymmetric bifurcations and thereby keep both downstream channels open. Our results explain why avulsion rarely occurs in tide-influenced deltas, whereas it occurs more often in river-dominated deltas.
We investigated the effect of tides on the morphodynamic evolution of bifurcations in...
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