Volume 5, Issue 10 (1-2015)
J Watershed Manage Res 2015, 5(10): 44-55 |
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(2015). Influence of Storage Dam Construction on Downstream Flood Reduction. J Watershed Manage Res. 5(10), 44-55.
URL: http://jwmr.sanru.ac.ir/article-1-412-en.html
URL: http://jwmr.sanru.ac.ir/article-1-412-en.html
Abstract: (5353 Views)
Juneghan-Farsan, a north-Karun sub-basin, is located in Chaharmahal and Bakhtiyari province-Iran, in which various storage dams are either built, under construction, or are subject of ongoing studies. In this research, the influence of storage dam construction on downstream flood reduction is investigated using flow routing modeling. The results indicated that complete construction of all considered dams in Juneghan-Farsan basin will reduce maximum flood discharge in downstream up to 34%. That was higher for floods with lower return periods (Two years). The results also showed that the off-stream storage dams would be less effective in reducing peak flood discharge. The study showed that 20% increase in the spillway length had no significant effect on the maximum output rate and cause on average only a 6% increase in it.
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