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Analysis of Sediment Discharge by Long-term Runoff in Nakdong River Watershed using SWAT Model
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 Title & Authors
Analysis of Sediment Discharge by Long-term Runoff in Nakdong River Watershed using SWAT Model
Ji, Un; Kim, Tae-Geun; Lee, Eun-Jeong; Ryoo, Kyong-Sik; Hwang, Man-Ha; Jang, Eun-Kyung;
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 Abstract
Sediment discharge by long-term runoff in the Nakdong River watershed should be predicted for the maintenance and management of the Nakdong River newly changed by the four major river restoration project. The data establishment by the analysis of runoff and sediment discharge using the long-term watershed model is necessary to predict possible problems by incoming sediments and to prepare countermeasures for the maintenance and management. Therefore, sediment discharges by long-term runoff in the main points of the Nakdong River were calculated using SWAT(soil and water assessment tool) model and the relations and features between rainfall, runoff, and sediment discharge were analyzed in this study. As a result of sediment discharge calculation in the main points of the Nakdong River and tributaries, the sediment discharge at the outlet of the Naesung Stream was greater than the Jindong Station in the Lower Nakdong River from 1999 to 2008 except the years with low precipitation. The sediment discharge at the Nakdong River Estuary Barrage (NREB) was corresponding to 20% of the Jindong Station which is located about 80 km upstream from NREB.
 Keywords
Long-term runoff;Nakdong river watershed;Sediment discharge;SWAT model;Watershed runoff modeling;
 Language
Korean
 Cited by
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