Articles | Volume 7, issue 1
Earth Surf. Dynam., 7, 247–274, 2019
Earth Surf. Dynam., 7, 247–274, 2019

Research article 14 Mar 2019

Research article | 14 Mar 2019

Modelling braided river morphodynamics using a particle travel length framework

Alan Kasprak et al.

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Cited articles

Ashmore, P. E.: Laboratory modelling of gravel braided stream morphology, Earth Surf. Proc. Land., 7, 201–225,, 1982. 
Ashmore, P. E.: How do gravel-bed rivers braid, Can. J. Earth Sci., 28, 326–341,, 1991. 
Ashworth, P. J. and Ferguson, R. I.: Size-selective entrainment of bed load in gravel bed streams, Water Resour. Res., 25, 627–634,, 1989. 
Ashworth, P. J., Best, J. L., and Jones, M. A.: Relationship between sediment supply and avulsion frequency in braided rivers, Geology, 32, 21–24,, 1994. 
Bates, P. and De Roo, A.: A simple raster-based model for flood inundation simulation, J. Hydrol., 236, 54–77,, 2000. 
Short summary
We present a modelling framework for the prediction of gravel-bed braided river evolution. The model is unique in that it simplifies sediment transport through the use of empirically-derived relationships between channel form and flood-scale particle transport distances, or path lengths, which ultimately allow for longer duration model runs with reduced computational demand. We use field surveys on two braided rivers to validate the model at the event, annual, and decadal timescales.