Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Analysis of Behavioral Properties for Hydrologic Response Function according to the Interaction between Stream Network and Hillslope

하천망과 구릉지사면 사이의 상호작용에 따른 수문학적 응답함수의 거동특성 분석

  • Yoon, Yeo Jin (Department of Civil & Environmental Engineering, Konyang University) ;
  • Kim, Joo Cheol (K-water Institute, Korea Water Resources Corporation)
  • 윤여진 (건양대학교 건설환경공학과) ;
  • 김주철 (한국수자원공사 K-water연구원)
  • Received : 2011.07.09
  • Accepted : 2011.07.29
  • Published : 2011.09.30
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Abstract

The purpose of this study is quantitative analysis of the effects of the interactions between stream network and hillslope to hydrologic response functions. To this end general formulation of hydrologic response function is performed based on width function and grid framework. Target basins are Ipyeong and Tanbu basins. From the results of width function estimation even similar sized and closely located basins could have very different hydrologic response function. It is found out that the interactions between stream network and hillslope are essential factors of rainfall-runoff processes because their difference can make the hydrologic response function with positive skewness. The change of velocities of stream network and hillslope might influence the magnitude of peak but time to peak tends to more sensitively respond to velocities of stream network. Lag time of basin would be the result of complex interaction between drainage structures and dynamic properties of river basin.

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References

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