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http://dx.doi.org/10.3741/JKWRA.2016.49.7.599

Inference of natural flood frequency for the region affected by dams in Nam Han River  

Kim, Nam Won (Hydro Science and Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Lee, Jeong Eun (Hydro Science and Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Lee, Jeongwoo (Hydro Science and Engineering Research Institute, Korea Institute of Civil Engineering and Building Technology)
Publication Information
Journal of Korea Water Resources Association / v.49, no.7, 2016 , pp. 599-606 More about this Journal
Abstract
The objective of this study is to estimate the unregulated flood frequency from Chungju dam to Yangpyung gauging station for the region affected by dams based on the peak discharges simulated by storage function routing model. From the flood frequency analyses, the quantiles for the unregulated flood frequency at 6 sites have similar pattern to each other, and their averaged quantile almost matched to the result from the regional flood frequency analysis. The quantile and annual mean discharge for the unregulated flood frequency for the downstream of Chungju dam show the similar behaviour to those for the upstream area. While the quantile and the annual mean discharge for the regulated flood frequency are significantly different from those for the unregulated flood frequency. In particular, the qunatile shows severe difference as the return period increases, and the annual mean discharge has a tendency to approach to the natural flood as the distance from dam increases.
Keywords
Flood Frequency Analysis; Storage Function Routing Model; Natural Flood Frequency; Quantile;
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Times Cited By KSCI : 10  (Citation Analysis)
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