Publisher : The Korean Environmental Sciences Society
DOI : 10.5322/JESI.2015.24.4.425
Title & Authors
Flood Discharge Analysis on Land Use Changes in Han Stream, Jeju Island Yang, Se-Chang; Yang, Sung-Kee; Lee, Jun-Ho; Jung, Woo-Yul; Ko, Kwang-Hyo;
A number of projects for development have been done continuously due to the increase of tourist in Jeju Island. However flood disaster countermeasure due to urbanization is not considered during this development projects. This study is to make basic process for the flood estimation in Han stream of Jeju Island. The variation of stream discharge due the every 5 years' land use change from 1980 to 2005. Data for flood events (rainfall and discharge) were collected for HEC-HMS model. Clark method was used for unit hydrograph analysis. For the estimation of Clark unit hydrograph parameters, Kraven II and Sabol's empirical equations were applied. The peak discharge increased 9.9~33.67% and total discharge amount increased 12.53~30.21%. Also, time of concentration for peak discharge was reduced by 10 minutes for each event.
HEC-HMS;Land use;Han stream;Clark;
Choi, J. H., Lee, J. J., Kwon, H. H., 2009, An Analysis of the Runoff variation due to Urbanization in Cho-Kyung Stream Watershed, Korean Wetlands Socity, 11(3) 161-169.
Han, W. K., Yang, S. K., 2009, A Runoff Simulation Using SWAT model Depending on Changes to Land Use in Jeju Island, Journal of Environmental Science, 18(9) 1057-1063.
Jeong, D. G., Lee, B. H., 2003, Urban Watershed Runoff Analysis Using Urban Runoff Models, Journal of Korea Water Resources Association, 36(1) 75-85.
Jin, E. J., 2001, A Study on the Hydrologic Change Analysis by Urbanization - Focused on Detention Storage Estimation Using SCS method -, Seoul National University
Jung, W. Y., Yang, S. K., Kim, D. S., 2014, Flood Discharge to Decision of Parameters in Han Stream, Journal of Environmental Science, 23(4) 533-541.
Jung, W. Y., 2013, The Estimation of Parametric Runoff Characteristics and Flood Discharge based on Riverine In-situ Measurements in Jeju Island, doctoral thesis, Jeju national university
Kim, S. H., 2008, An Analysis of Runoff Variation by Land Cover Change in the Nabul Stream Watershed, Gyeongsang National University
Lee, S. H., Bae, S. K., 2004, Estimation of Precipitation Recharge in the Pyung chang River Basin Using SCS-CN Method, Journal of Korea water Resources Association, 13(12), 39-44
Ministry of Environment, http://www.me.go.kr
Park, G. B., 2012, Runoff Characteristics of New Urban Expansion Area according to The Type of Land Use, Journal of Environmental Sciences Society Conferrence, Vol(21), 306-309.
Water Resources Management Information System, http://www.wamis.go.kr