Amplified erosion above waterfalls and oversteepened bedrock reaches
None of the conventional bedrock erosion laws can predict incision immediately upslope of a waterfall lip where the flow is accelerating toward a freefall. Considering the expected increase in flow velocity and shear stress at the lip of a waterfall, we determine erosion amplification at a waterfall lip as [equation], where [equation] is the erosion rate at the upstream end of the flow acceleration zone above a waterfall, Fr is the Froude number at this setting, and n ranges between 0.5–1.7....[Show more]
|Collections||ANU Research Publications|
|Source:||Journal of Geophysical Research 111 (2006): F04004/1-11|
|Haviv_AmplifiedErosion2006.pdf||1.64 MB||Adobe PDF|
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