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Last modified
7/14/2009 5:02:37 PM
Creation date
5/20/2009 10:24:26 AM
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UCREFRP
UCREFRP Catalog Number
9670
Author
Pitlick, J.
Title
Channel Monitoring To Evaluate Geomorphic Changes On The Main Stem Of The Colorado River.
USFW Year
n.d.
USFW - Doc Type
Boulder, CO.
Copyright Material
NO
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streamwise gradient in kinetic energy, which is produced by changes in the speed of the flow as <br />it moves over the topography; this term is generally smaller than the other two, however it can <br />add significantly to the total energy loss, particularly in cases where the two other terms are of <br />equal magnitude but opposite sign. Equation 4 thus shows that the flow's ability to do work <br />against the bed friction, dH/dx, depends on the sum of three different terms, which vary in their <br />importance depending on the particular flow level and site characteristics. <br />Equation 4 was solved using the standard step method, an iterative procedure that <br />balances the total energy, H, along a series of channel cross sections. The model. was used to <br />predict the depth and velocity at each cross section for a series of known discharges and assumed <br />values of the roughness coefficient, Manning's n. The model results and assumed values of <br />Manning's n were then verified by comparing the predicted water surface elevations with those <br />measured in the field. <br />22
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