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http://dx.doi.org/10.5322/JES.2010.19.2.149

Flood Characteristics at Nakdong Estuary with 1 Dimensional Unsteady Model  

Lee, Sang-jin (Korea Institute of Water and Environment, Korea Water Resources Corporation)
Shin, Hyun-Ho (Korea Institute of Water and Environment, Korea Water Resources Corporation)
Kim, Joo-Cheol (Korea Institute of Water and Environment, Korea Water Resources Corporation)
Hwang, Man-Ha (Korea Institute of Water and Environment, Korea Water Resources Corporation)
Publication Information
Journal of Environmental Science International / v.19, no.2, 2010 , pp. 149-155 More about this Journal
Abstract
Rainfalls would increase the discharges or stages of tributary channels in natural watersheds, which in turn augment the magnitude of main stream stages. Rising of water surface elevation in main streams can affect and damage the human activities because of the possibilities of the breakdown or overflow of the embankment. Therefore it is necessary to establish the structural or non-structural alternatives for the sake of prevention or treatment of those disasters. Many mathematical models to analyze the flood flows in natural watercourses have been proposed as the non-structural alternatives so far. In this study one of the such models, FLDWAV developed by NWS(National weather Service), is applied to the downstream reach of Nakdong river. Model calibration is performed on various Manning's roughness coefficients at the gauging stations. The simulation results are compared well with hydrological estimations of flood discharges considering the effects of multipurpose dams upstream of control points.
Keywords
Manning's coefficient; FLDWAV; Flood discharge; Multipurpose dam;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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