Reconciling Recession Rates of Vertical vs. Non-vertical Knickpoints, and a Potential Link to Bedrock Channel Concavity Academic Article uri icon

abstract

  • Abstract Oversteepend channel segments (knickpoints) move up-channel as they communicate relative changes in base level to the upper reaches of channel networks and the adjacent hillslopes. The knickpoint recession rate (celerity, C e [L/T]) is often derived from a channel incision model and formulated as C e∝ A theta, where A [L 2] is drainage area and theta can be computed from channel elevation and drainage area. However, because simple channel incision models rely on the energy expenditures or shear stress …

publication date

  • February 1, 2016