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i e <br />Troendle/Nankervis/Porth Page34 5/22/2003 <br />? 1.6 <br />ti 1.5 <br />v, 1.4 ; ----------------------- .,__.. Y = (1 - 0.044*H) + 0.581*(1 - 11exP(li)) <br />S -, <br />m 1.3 <br />a <br />0 1.2 <br />0 <br />p <br />co 1.1 :c <br />o 1.0 , <br />?o <br />? 0.9 <br />U <br />? 0.8 <br />Q Snow S?cour Factor == Y/1.357 <br />3 0•7 <br />0 <br />v? 0.6 <br />0 1 ;2 3 4 5 6 7 8 9 10 11 12 13 14 15 <br />Opening Vlrndlward Width, Muftiples of Tree Height (H) <br />Figure 3. The snow scour factor, in openings greater than 5-H, represents the proportion of the <br />snow pack ac;cumulated in an opening that is retained on site following scour. <br />Literature Cited <br />Hoover, M. D. and C.F. Leaf 1967. P'rocess and significance of interception in Colorado sub <br />alpine forest. ]:n: W. E. Soppe:r and H. W. Lull (Editors) Forest Hydrology. Pergamon, <br />New York, N.Y. PP. 213-224. <br />Kittredge, Joseph. 1948.. Forest Influenc;es: The effects of Woody Vegetation on Climate, Water, <br />and Soil. McGiraw-Hill Book Company.391pp. <br />Leaf, C. F. and G. E. Brink. 1973. Hydrologic simulation model of Colorado sub alpine forest. <br />U.S. Dep. Agric. Forest Service. Res. Paper RM-107, Rocky Mountain. Forest and <br />Range Exp. Station, Fort Collins, CO. 23 p. <br />Meiman, James R. 1987. Influence of forests on snow pack accumulation. In: Management of <br />Sub alpine Forests: Building on Fifty Years of Reseazch. Proceeding of a Technical <br />Conference, Siilver Creek, Colorado, July 6-9, 1987. U. S. Forest Service, Gen Tech <br />Rep RM-149. 61-67. <br />Schmidt, R. A. and C. A. Troendle. 1989. Snowfall into a forest and cleazing. Journal of <br />Hydrology. 11 10(1989): 335-348.