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Recent sediment studies refute Glen Canyon Dam hypothesis

September 3, 2002

Recent studies of sedimentology hydrology, and geomorphology indicate that releases from Glen Canyon Dam are continuing to erode sandbars and beaches in the Colorado River in Grand Canyon National Park, despite attempts to restore these resources. The current strategy for dam operations is based on the hypothesis that sand supplied by tributaries of the Colorado River downstream from the dam will accumulate in the channel during normal dam operations and remain available for restoration floods. Recent work has shown that this hypothesis is false, and that tributary sand inputs are exported downstream rapidly typically within weeks or months under the current flow regime.

Publication Year 2002
Title Recent sediment studies refute Glen Canyon Dam hypothesis
DOI 10.1029/2002EO000191
Authors David M. Rubin, David J. Topping, John C. Schmidt, Joe Hazel, Matt Kaplinski, Theodore S. Melis
Publication Type Article
Publication Subtype Journal Article
Series Title Eos, Transactions, American Geophysical Union
Index ID 70123295
Record Source USGS Publications Warehouse
USGS Organization Coastal and Marine Geology Program