Simulating the effects of Glen Canyon Dam releases on Grand Canyon river trips |
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Authors: | Ronald E Borkan A Heaton Underhill |
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Institution: | (1) SWCA, Inc. Environmental Consultants, 5620 N. Kolb Rd., Ste. 100, 85715 Tucson, Arizona, USA;(2) Cooperative National Park Resources Studies Unit, University of Arizona, 125 Biological Sciences East, 85721 Tucson, Arizona, USA |
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Abstract: | The Shechter-Lucas wilderness use simulation model (WUSM) has been modified to quantify the effects of fluctuating Glen Canyon Dam releases on Grand Canyon river trips. The model now simulates changes in flow as predicted by the Streamflow Synthesis and Reservoir Regulation computer model for the Colorado River. This revised WUSM provides data on several flow-related effects, including delays at rapids, encounters with other parties, and the time available for visiting attraction sites. Nine flow alternatives are evaluated and compared. Analysis of these outputs provides useful information to the Bureau of Reclamation on how the operation of Glen Canyon Dam effects river trips through Grand Canyon National Park. |
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Keywords: | Wilderness use simulation model Computer simulation Grand Canyon Glen Canyon Dam Glen Canyon environmental studies |
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