Assessment of Small Mountainous Catchment Runoff at Yongdam-dam Guryang

산지 소규모 유역의 유출 특성 평가-용담 구량천

  • Kim, Seong-Goo (School of Civil Engineering, Chungbuk National University) ;
  • Chang, Hyung-Joon (School of Civil Engineering, Chungbuk National University) ;
  • Lee, Hyo-Sang (School of Civil Engineering, Chungbuk National University)
  • 김성구 (충북대학교 토목공학부) ;
  • 장형준 (충북대학교 토목공학부) ;
  • 이효상 (충북대학교 토목공학부)
  • Received : 2018.02.01
  • Accepted : 2018.04.06
  • Published : 2018.04.30


The risk of disasters, such as floods and drought, has increased. Reliable hydrological data is important for analyzing the water resource and designing hydraulic structure to manage these risks. The Yongdam Guryang river catchment located in the central of Korea is the research catchment of K-water and UNESCO IHP, and the hydrological data, such as rainfall, runoff, evapotranspiration, etc. has been observed at the catchment. The aim of this study was to assess the runoff characteristics of the small mountainous catchment of Korea based on the observed hydrological data, and the Probability Distributed Model was applied as the Rainfall-Runoff Model at the Yongdam Guryang river catchment. The hydrological data was divided into the wet period from June to September and dry period from October to May according to data analysis. The runoff ratio was 0.27~0.41 in the wet period and 0.30~0.45 in the dry period. The calibration result by the Probability Distributed Model showed a difference in the calibrated model parameters according to the periods. In addition, the model simulated the runoff accurately except for the dry period of 2015, and the result revealed the applicability of the PDM. This study showed the runoff characteristics of the small mountainous catchment by dividing the hydrological data into dry and wet periods.


IHP;Small mountainous catchment;PDM;Runoff characteristics;Yongdam-dam Catchment


Supported by : 충북대학교


  1. W. Ludwig, P. Serrat, L. Cesmat, and J. Garcia-Esteves, "Evaluating the impact of the recent temperature increase on the hydrology of the Teˆt River (Southern France)," Journal of Hydrology, pp. 204-221, 2004. DOI:
  2. D. P. Kim, and N. H. Lee, "Water Balance Analysis using Observation Data of the Seolmacheon and Chatancheon Experimental Catchment of the 2012," Journal of Korea Water Resources Association 2013, pp. 631-635, 2013.
  3. T. Kjeldsen, H.J. Kim, C.H. Chang, and H. S. Lee, "Evidence and Implications of Nonlinear Flood Response in a Small Mountainous Watershed," Journal of Hydrologic Engineering, DOI 107107-1604-2-0059, 2016. DOI:
  4. H. Yang, "Water Balance Change of Watershed by Climate Change," Journal of the Korean Geographical Society, no. 42, vol. 3, pp. 405-420, 2007.
  5. C. S. Rim, G. H. Lim, S. E. Yoon, "A Study on the Hydroclimatic Effects on the Estimation of Annual Actual Evapotranspiration Using Watershed Water Balance," Journal of Korea Water Resources Association, vol. 44, no. 12, pp. 915-928, 2011. DOI:
  6. H. S. Kim, H. S. Kim, G. I. Chun, K. U. Kang, "Drought Evaluation in 2014-2015," Water for Future, vol. 49, no. 7, pp. 61-75, 2016.
  7. K-water, "Yongdam experimental catchment manage white book," 2016.
  8. R. J. Moore, "The probability-distributed principle and runoff production at point an basin scales," Hydrological Sciences Journal, vol. 3, no. 2, pp. 273-297. 1985. DOI:
  9. R.J. Moore, "The PDM rainfall-runoff model," Hydrology and Earth System Sciences, vol. 11, no. 1, pp. 483-499. 2007. DOI:
  10. H. S. Choi, K. Y. Han, "Development of Distributed Rainfall-Runoff Model by Using GIS and Uncertainty Analysis (I) - Theory and Development of Model," Journal of Korea Water Resources Association, no. 37, vol. 4, pp. 329-339, 2004. DOI:
  11. S. E. Ahn. "Analysis of Conceptual Rainfall-runoff Model PDM using Multi-objective Function," Department of Civil Engineering Graduate School, Chungbuk National University. 2010.
  12. Y. N. Yoon, Hydrology., pp. 746, CHEONG MOON GAK, 2007.
  13. H.J. Chang, "Application of the ReFH Conceptual Rainfall Runoff Model at Jeungpyeong and Jalovecky" Department of Civil Engineering Graduate School, Chungbuk National University. 2014.
  14. J.E. Nash, and J.V. Sutcliffe, "River flow forecasting through conceptual models part I - A discussion of priciples," Journal of Hydrology, vol. 10, no. 3, pp. 282-290. 1970.