Journal of The Korean Society of Agricultural Engineers (한국농공학회논문집)

The Korean Society of Agricultural Engineers (한국농공학회)
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Modeling Daily Streamflow in Wastewater Reused Watersheds Using System Dynamics

시스템 다이내믹스를 이용한 하수재이용 유역의 일유출량 모의

  • Jeong, Han Seok (Institute of Green Bio Science and Technology, Seoul National University) ;
  • Seong, Choung Hyun (Department of Biological Systems Engineering, Virginia Polytechnic Institute and State University) ;
  • Park, Seung Woo (Department of Rural Systems Engineering, Seoul National University)
  • Received : 2014.08.13
  • Accepted : 2014.10.20
  • Published : 2014.11.30
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Abstract

This study presents a system dynamics modeling approach to simulate daily streamflow in a watershed including wastewater treatment plant which contributes to irrigation water supply. The conceptual system dynamics model considering the complex and dynamic hydrological processes in the watershed was developed. The model was calibrated and validated each for two years based on observed flow data. Model performances in terms of $E_{NS}$, RSR, PBIAS, and $R^2$ were 0.64, 0.60, -3.6 %, and 0.64 for calibration period, and 0.66, 0.58, -2.6 %, and 0.66 for validation period, respectively, showing an applicability on generating the daily streamflow. System dynamics modeling approach could help better understand the hydrological behavior of the watershed being reused wastewater for agriculture, by providing graphical dynamics of the hydrological processes as well as conventional rainfall-runoff model results.

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References

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