<br />Schmidt, J.e., 1990, Recirculating flow and
<br />sedimentation in the Colorado River in Grand
<br />Canyon, Arizona: Journal of Geology, v. 98, p. 709-
<br />724.
<br />
<br />Schmidt, J.C., and Graf, J.B., 1990, Aggradation and
<br />degradation of alluvial sand deposits, 1965 to 1986,
<br />Colorado River, Grand Canyon National Park,
<br />Arizona: U.S. Geological Survey Professional Paper
<br />1493,74 p.
<br />
<br />Schmidt, J.e., and Rubin, D.M., 1995, Regulated
<br />streamflow, fme-grained deposits, and effective
<br />discharge in canyons with abundant debris fans, in
<br />Natural and Anthropogenic Influences in Fluvial
<br />Geomorphology: Washington, D.C., American
<br />Geophysical Union
<br />
<br />Schmidt, J.e., Webb, RH., Valdez, RA., Marzolf, G.R.,
<br />and Stevens, L.E., [998, The roles of science and
<br />values in river restoration in Grand Canyon:
<br />Bioscience, v. 48, no. 9, 735-747.
<br />
<br />Sharp, RP., and Nobles, L.H., 1953, Mudflows of 1941
<br />at Wrightwood, southern California: Geological
<br />Society of America Bulletin, v. 64, p. 547-560.
<br />
<br />Soil Conservation Service, 1975, Erosion, sediment and
<br />related salt problems and treatment opportunities:
<br />U.S. Department of Agriculture, 152 p.
<br />
<br />Stephens, H.G., and Shoemaker, E.M., 1987, [n the
<br />footsteps of Jobn Wesley Powell: Boulder,
<br />Colorado, Johnson Books, 286 p.
<br />
<br />Stevens, L., 1990, The Colorado River in Grand Canyon,
<br />A guide: Flagstaff, Red Lake Books, 115 p.
<br />
<br />Strand, R.I., 1975, Bureau of Reclamation procedures for
<br />predicting sediment yield: U.S. Department of
<br />Agriculture Report ARS-S-40, Present and
<br />prospective technology for' predicting sediment
<br />yields and sources, p. 5-10.
<br />
<br />Strand, R.I., and Pemberton, E.L., 1982, Reservoir
<br />sedimentation technical guidelines for Bureau of
<br />Reclamation: Denver, Colorado, Bureau of
<br />Reclamation.
<br />
<br />Tbomas, B.E., Hjalmarson, H.W., and Waltemeyer,
<br />S.D., 1997, Methods of estimating magnitude and
<br />frequency of floods in the southwestern United
<br />States: U.S. Geological Survey Water-Supply Paper
<br />2433, 195 p.
<br />
<br />Topping, D.J., 1997, Physics offlow, sediment transport,
<br />bydraulic geometry, and cbannel geomorphic
<br />adjustment during flash floods in an epbemeral
<br />river, tbe Paria River, Utah and Arizona [Ph.D.
<br />dissertation]: Seattle, University of Wasbington,
<br />406 p.
<br />
<br />Turner, R.M., and Karpiscak, M.M., 1980, Recent
<br />vegetation changes along tbe Colorado River
<br />between Glen Canyon Dam and Lake Mead,
<br />Arizona: U.S. Geological Survey Professional Paper
<br />1132, 125 p.
<br />
<br />U.S. Department of Commerce, 1966, Arizona, Hourly
<br />precipitation data, December, ]966: U.S.
<br />Department of Commerce, Environmental Science
<br />Services Administration, v. 16, no. 12,5 p.
<br />
<br />U.S. Department of the Interior, 1995, Operation of Glen
<br />Canyon Dam - final environmental impact
<br />statement: Coconino County, AZ, Colorado River
<br />Storage Project, 237 p.
<br />
<br />Webb, R.H., 1987, Occurrence and geomorphic effects
<br />of streamflow and debris flow floods in southern
<br />Utah and northern Arizona, in Mayer, Larry, and
<br />Nash, D.B. (editors), Catastrophic flooding: Boston,
<br />Allen and Unwin, p. 247-265.
<br />
<br />Webb, R.H., 1996, Grand Canyon, a century of change:
<br />Tucson, University of Arizona Press, 290 p.
<br />
<br />Webb, R.H., and Betancourt, J.L., ]992, Climatic
<br />variability and flood frequency of the Santa Cruz
<br />River, Pima County, Arizona: U.S. Geological
<br />Survey Water-supply Paper 2379,40 p.
<br />
<br />Webb, R.H., and Melis, T.S., ]996, Observations of
<br />environmental cbange in Grand Canyon: Flagstaff,
<br />Arizona, Bureau of Reclamation, Glen Canyon
<br />Environmental Studies Technical Report, 23 p.
<br />
<br />Webb, R.H., Melis, T.S., Griffitbs, P.G., Elliott, J.G.,
<br />1999a, Reworking of aggraded debris fans, in
<br />Webb, R.H., Schmidt, J.C., Marzolf, G.R., and
<br />Valdez, R.A., The controlled flood in Grand
<br />Canyon: Scientific experiment and management
<br />demonstration: Washington, D.C. American
<br />Geophysical Union, Geopbysical Monograph 110,
<br />p. 37- 511.
<br />
<br />Webb, R.H., Melis, T.5., Griffiths, P.G., Elliott, J.G.,
<br />Cerling, T.E., Poreda. RJ, Wise, T.W, and Pizzuto,
<br />J.E., 1999b, Lava Falls Rapid in Grand Canyon,
<br />effects of late Holocene debris flows on tbe
<br />Colorado River: U.S. Geological Survey
<br />Professional Paper 1591,91 p.
<br />
<br />Webb, R.H., Pringle, P.T., Reneau, S.L., and Rink, G.R.,
<br />1988, Monument Creek debris flow, 1984-
<br />Implications for formation of rapids on the Colorado
<br />River in Grand Canyon National Park: Geology, v.
<br />16, p. 50-54.
<br />
<br />Webb, R.H., Pringle, P.T., and Rink, G.R., 1989, Debris
<br />flows from tributaries of the Colorado River, Grand
<br />Canyon National Park, Arizona: U.S. Geological
<br />Survey Professional Paper 1492, 39 p.
<br />
<br />REFERENCES CITED 41
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