Flood Discharge to Decision of Parameters in Han Stream Watershed

한천유역의 홍수량 산정을 위한 HEC-HMS 모형의 민감도 분석

  • Received : 2013.11.14
  • Accepted : 2014.04.03
  • Published : 2014.04.30


The streams in Jeju Island have very distinctive hydrological and geological properties and there are a lot of limits in applying the general flood estimation method. This study presented parameters dominant in the Hancheon stream of Jeju Island by analyzing the sensitivity of parameters of HEC-HMS model regarding rainfall events in the target basin, and extracted the optimal parameter(Time of Concentration of Clark Unit Hydrograph: Kraven II method, Storage Coefficient: Sabol method) by analyzing and comparing it with the flood runoff data observed in the site and Jeju Island's observation data.


HEC-HMS;Jeju island;Time of concentration;Storage coefficient


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Cited by

  1. A Proposal of Unit Hydrograph Using Statistical Analysis in Oedo Stream, Jeju vol.24, pp.4, 2015,
  2. Flood Discharge Analysis on Land Use Changes in Han Stream, Jeju Island vol.24, pp.4, 2015,
  3. Assessing Unit Hydrograph Parameters and Peak Runoff Responses from Storm Rainfall Events: A Case Study in Hancheon Basin of Jeju Island vol.24, pp.4, 2015,
  4. Channel Characteristics of Sincheon Experimental Catchment using HEC - RAS model vol.25, pp.1, 2016,


Supported by : 국토해양부