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http://dx.doi.org/10.3741/JKWRA.2016.49.4.347

Sensitive analysis of river geometry under various flow conditions in South Han River using GSTARS model  

Ahn, Jungkyu (Department of Civil and Environmental Engineering, Incheon University)
Lee, Jong Mun (Department of Environmental Engineering, Inje University)
Kim, Young Do (Department of Environmental Engineering(Nakdong River Environmental Research Center), Inje University)
Kang, Boosik (Department of Civil and Environmental Engineering, Dankook University)
Publication Information
Journal of Korea Water Resources Association / v.49, no.4, 2016 , pp. 347-359 More about this Journal
Abstract
Flow input from the basin will not remain the same as before due to climate changes. Since the predictions on river discharge due to climate change is given by scenarios, various discharge scenarios were prepared in this study. For a long term and reach prediction, semi-two dimensional sediment transport model, GSTARS, was used. The flood water surface elevations predicted by GSTARS model were analysed statistically and it was concluded that the model is applicable for the South Han River. Three stream tubes is the most suitable to simulate two dimensional river geometric change River geometric changes. For sediment load computation, Ackers and White equation and Yang equation were resonable. River will become narrower regardless of discharge variation, more discharge results in deeper channel.
Keywords
river bed change; GSTARS; sensitive analysis; stream tube;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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