Journal of Korean Society on Water Environment (한국물환경학회지)

Korean Society on Water Environment (한국물환경학회)
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Application of FDC and LDC using HSPF Model to Support Total Water Load Management System

오염총량관리제 지원을 위한 유역모형 기반 유량지속곡선 및 부하지속곡선 활용방안

  • Lee, Eun Jeong (Department of Environmental Engineering, Cheongju University) ;
  • Kim, Tae Geun (Department of Environmental Engineering, Cheongju University) ;
  • Keum, Ho Jun (Department of Architectural, Civil, Environmental and Energy Engineering, Kyungpook National University)
  • 이은정 (청주대학교 환경공학과) ;
  • 김태근 (청주대학교 환경공학과) ;
  • 금호준 (경북대학교 건설환경에너지공학부)
  • Received : 2017.11.06
  • Accepted : 2017.12.13
  • Published : 2018.01.30
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Abstract

In this study, we discussed the application of Watershed model and Load Duration Curves (LDC) in Total Water Load Management System. The Flow Duration Curves (FDC) and the LDC were generated using the results of the daily HSPF model and analyzed on monthly or yearly flow duration variability, and non-point pollutant discharge loads by entire flow conditions. As a result of the calibration and verification of the HSPF model, both the flow and the water quality were appropriately simulated. The simulated values were used to generate the Flow Duration Curve and the Load Duration Curve, and then the excess rate by entire flow conditions was analyzed. The point and non-point pollutant discharge loads for entire flow conditions were calculated. It is possible to evaluate the variability of water quality in specific flow duration through the curves reflecting the flow duration variability and to confirm the characteristics of the pollutant source. For a more scientific Total Water Load Management System, it is necessary to switch from a current system to a system that can take into account the entire flow conditions. For this, the application of the watershed model and load duration curve is considered to be the best alternative.

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References

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