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http://dx.doi.org/10.5762/KAIS.2011.12.3.1458

Estimation for application of the Runoff Analysis using TOPMODEL at an ungaged watershed  

Kang, Sung-Jun (Dept. of Mechanical System Engineering, Chonbuk National University)
Park, Young-Gi (Dept. of Infra-Structure Civil Engineering, Chonbuk National University)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.3, 2011 , pp. 1458-1464 More about this Journal
Abstract
This study is on the application of TOPMODEL-topographic based hydrologic model-to the runoff analysis, The test area was the ssang-chi watershed which is mountainous catchment located in the upstream of the sumjin-gang basin and the watershed area is $126.7km^2$. The six's hourly runoff and precipitation data was selected in the 2006 ~ 2009 year. And the model parameters are calibrated using observed runoff data by Pattern Search method. The topographic index of the ssang-chi catchment was produced by digital elevation model(DEM) of 100m grid. As a results of the analysis, the parameters of model, a decay facter(m), transmissivity(T0), and the unsaturated zone delay(TD) are sensible to hydrologic response, and the simulated runoff data are in good agreement with observed runoff data.
Keywords
Topmodel; runoff analysis; Pattern search method; parameters of model;
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