시스템 다이내믹스를 이용한 하수재이용 유역의 일유출량 모의
Modeling Daily Streamflow in Wastewater Reused Watersheds Using System Dynamics
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초록
This study presents a system dynamics modeling approach to simulate daily streamflow in a watershed including wastewater treatment plant whichcontributes to irrigation water supply. The conceptual system dynamics model considering the complex and dynamic hydrological processes in thewatershed was developed. The model was calibrated and validated each for two years based on observed flow data. Model performances in terms of ENS,RSR, PBIAS, and R2 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, showingan applicability on generating the daily streamflow. System dynamics modeling approach could help better understand the hydrological behavior of thewatershed being reused wastewater for agriculture, by providing graphical dynamics of the hydrological processes as well as conventional rainfall-runoffmodel results.
Abstract
This study presents a system dynamics modeling approach to simulate daily streamflow in a watershed including wastewater treatment plant whichcontributes to irrigation water supply. The conceptual system dynamics model considering the complex and dynamic hydrological processes in thewatershed was developed. The model was calibrated and validated each for two years based on observed flow data. Model performances in terms of ENS,RSR, PBIAS, and R2 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, showingan applicability on generating the daily streamflow. System dynamics modeling approach could help better understand the hydrological behavior of thewatershed being reused wastewater for agriculture, by providing graphical dynamics of the hydrological processes as well as conventional rainfall-runoffmodel results.
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