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Amplified erosion above waterfalls and oversteepened bedrock reaches

Haviv, I.; Enzel, Y.; Whipple, K. X; Zilberman, E.; Stone, John; Matmon, A.; Fifield, Keith


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]

CollectionsANU Research Publications
Date published: 2006-10-24
Type: Journal article
Source: Journal of Geophysical Research 111 (2006): F04004/1-11
DOI: 10.1029/2006JF000461


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