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Last modified
7/14/2009 5:02:34 PM
Creation date
6/1/2009 11:30:55 AM
Metadata
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UCREFRP
UCREFRP Catalog Number
8254
Author
Brink, M. S. and J. C. Schmidt.
Title
The Duchesne River Channel
USFW Year
1996.
USFW - Doc Type
A Geomorphic History, 1875-1995.
Copyright Material
NO
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Figure 6. Diagram showing the method used in converting historic Platt map channel widths to <br />widths perpendicular to the channel. Procedure: 1. Center line down the channel was drawn. <br />2. A line perpendicular to the center line was drawn from one corner where the section line crossed <br />the channel to the opposite bank to form a right triangle (b). 3. The bank of the river, opposite that <br />corner is considered parallel to the center line (a). 4. The length of c is known from the survey <br />notes. 5. Angle B is measured. 6. The formula c sin B • b is used to determine the perpendicular <br />width of the channel, which is b. <br />Figure 7. Representation of across-section of the Duchesne River identifying the <br />geomorphic surfaces measured in 1995 field width measurements. <br />20 <br />Low elevation inner banks <br />
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