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<br />Grams and Schmidt 29 <br /> <br />Figure 9. -- Aerial photograph of a debris fan-eddy complex in Lodore Canyon at Rkm <br />558.3. Streamflow is from top to bottom. A channel constriction is fonned where the <br />debris fan impinges flow against the opposite bedrock/talus bank. A second low-water <br />constriction and rapid is fonned at the downstream gravel bar. <br /> <br />Figure 10. -- Water surface and bed profile through a fan-eddy complex at Rkm 575.99 <br />(Winnie's Grotto) in Lodore Canyon. The solid line shows water surface and the <br />dashed line shows the riverbed. The +'s show measurement locations. Where debris <br />fans are frequent some fans lack a backwater above and a downstream gravel bar. <br /> <br />Figure 11. -- The relationship between resistance of bedrock exposed at river level and <br />water-surface slope of the Green River is shown at 1-km intervals (a); and averaged <br />for each geomorphic subreach (b). <br /> <br />Figure 12. -- Relation between debris-fan frequency and slope of the Green River. Fan <br />frequency was determined from 1:5,000 scale aerial photographs. <br /> <br />Figure 13. -- Downstream variation in channel width-depth ratio calculated at post- <br />Flaming Gorge Dam mean annual flood. Solid line shows 5-km moving average and <br />dashed line is block averages for indicated geomorphic subreaches. Channel geometry <br />is similar within each subreach and distinct between subreaches. <br /> <br />Figure 14. -- illustration of the inverse relation between alluvial valley width and bedrock <br />resistance determined at I-km intervals through study area. <br /> <br />~ <br />~ <br />