한국농공학회논문집 (Journal of The Korean Society of Agricultural Engineers)

  • 제54권6호
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  • Pages.169-176
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  • 2012
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  • 1738-3692(pISSN)
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  • 2093-7709(eISSN)
한국농공학회 (The Korean Society of Agricultural Engineers)
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하류 유량자료를 이용한 상류유역의 미계측 유출량 추정

Estimation of Upstream Ungauged Watershed Streamflow using Downstream Discharge Data

  • 정영훈 (유량조사사업단 유량조사실 낙동강유량그룹) ;
  • 정충길 (건국대학교 사회환경시스템공학과) ;
  • 정성원 (유량조사사업단) ;
  • 박종윤 (유량조사사업단 유량조사실 낙동강유량그룹) ;
  • 김성준 (유량조사사업단 유량조사실 낙동강유량그룹)
  • 투고 : 2012.08.01
  • 심사 : 2012.11.23
  • 발행 : 2012.11.30
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초록

This study describes the estimation of upstream ungauged watershed streamflow using downstream discharge data. For downstream Dongchon (DC) and upstream Kumho (KH) water level stations in Kumho river basin ($2,087.9km^2$), three methods of Soil and Water Assessment Tool (SWAT) modeling, drainage-area ratio method and regional regression equation were evaluated. The SWAT was calibrated at DC with the determination coefficient ($R^2$) of 0.70 and validated at KH with $R^2$ of 0.60. The drainage-area ratio method showed $R^2$ of 0.93. For the regional regression, the watershed area, average slope, and stream length were used as variables. Using the derived equation at DC, the KH could estimate the flow with maximum 41.2 % error for the observed streamflow.

키워드

참고문헌

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피인용 문헌

  1. Evaluation of SWAT Model Applicability for Runoff Estimation in Nam River Dam Watershed vol.58, pp.4, 2016, https://doi.org/10.5389/KSAE.2016.58.4.009
  2. A Study on Regionalization of Parameters for Sacramento Continuous Rainfall-Runoff Model Using Watershed Characteristics vol.48, pp.10, 2015, https://doi.org/10.3741/JKWRA.2015.48.10.793
  3. Evaluation of Extended Inverse Distance Weighting Method for Constructing a Flow Duration Curve at Ungauged Basin vol.15, pp.3, 2015, https://doi.org/10.9798/KOSHAM.2015.15.3.329