The Glen Canyon Dam at the top of the Grand Canyon prevents natural flooding. In 1996
Chapter 0, Problem 59(choose chapter or problem)
The Glen Canyon Dam at the top of the Grand Canyon prevents natural flooding. In 1996, scientists decided an artificial flood was necessary to restore the environmental balance. Water was released through the dam at a controlled rate12 shown in Figure 5.88. The figure also shows the rate of flow of the last natural flood in 1957. (a) At what rate was water passing through the dam in 1996 before the artificial flood? (b) At what rate was water passing down the river in the pre-flood season in 1957? (c) Estimate the maximum rates of discharge for the 1996 and 1957 floods. (d) Approximately how long did the 1996 flood last? How long did the 1957 flood last? (e) Estimate how much additional water passed down the river in 1996 as a result of the artificial flood. (f) Estimate how much additional water passed down the river in 1957 as a result of the flood.
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