Controls on the channel width of rivers : Implications for modeling fluvial incision of bedrock

@inproceedings{Finnegan2005ControlsOT,
  title={Controls on the channel width of rivers : Implications for modeling fluvial incision of bedrock},
  author={Noah Finnegan and G. Tothf D. L. De ZeeuwJ P. L. Roe and David R. Montgomery and Bernard Hallet},
  year={2005}
}
On the basis of the Manning equation and basic mass conservation principles, we derive an expression for scaling the steadystate width (W) of river channels as a function of discharge (Q), channel slope (S), roughness (n), and width-to-depth ratio (a): W 5 [a(a 1 2)2/3]3/8Q3/8S23/16n3/8. We propose that channel width-todepth ratio, in addition to roughness, is a function of the material in which the channel is developed, and that where a river is confined to a given material, width-to-depth… CONTINUE READING