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http://dx.doi.org/10.3741/JKWRA.2010.43.2.233

Estimation of Muskingum-Cunge Parameters for Natural Streams  

Kim, Jin-Soo (Dept. of Civil and Envir. Engrg., Sungkyunkwan Univ.)
Jun, Kyung-Soo (Dept. of Civil and Envir. Engrg., Sungkyunkwan Univ.)
Publication Information
Journal of Korea Water Resources Association / v.43, no.2, 2010 , pp. 233-243 More about this Journal
Abstract
A method is proposed of estimating Muskingum-Cunge parameters for natural streams using cross-sectional and longitudinal channel geometry and roughness coefficient data. Firstly, for various water-surface levels at a cross section cross-sectional areas and hydraulic radii are calculated. Corresponding discharges are then calculated using Manning's equation. This procedure is repeated for all cross-sections in the reach. Finally, routing parameters are estimated from the calculated cross-sectional area and discharge value pairs by regression analysis. The procedures for estimating Muskingum-Cunge parameters are applied to the South Han River. Flows calculated by Muskingum-Cunge model with estimated parameters showed much better agreement with those by dynamic wave model in peak discharge, time to peak discharge, and normalized RMS errors than those calculated by the HEC-1 Muskingum-Cunge model.
Keywords
Muskingum-Cunge model; dynamic wave model; parameter estimation; South Han River;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
연도 인용수 순위
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