Modeling of Water Temperature in the Downstream of Yongdam Reservoir using 1-D Dynamic Water Quality Simulation Model

1차원 동적수질모형을 활용한 용담댐 하류하천의 수온변동 모의

  • Noh, Joonwoo (K-water Research Institute, Korea Water Resources Corporation) ;
  • Kim, Sang-Ho (Department of civil engineering, Sangji University) ;
  • Shin, Jae-Ki (K-water Research Institute, Korea Water Resources Corporation)
  • 노준우 (한국수자원공사, K-water연구원) ;
  • 김상호 (상지대학교 건설시스템공학과) ;
  • 신재기 (한국수자원공사, K-water연구원)
  • Received : 2009.08.18
  • Accepted : 2010.02.11
  • Published : 2010.03.30

Abstract

The chemical and biological reaction of the aquatic organism is closely related with temperature variation and water temperature is one of the most important factors that should be considered in establishing sustainable reservoir operation scheme to minimize adverse environmental impacts related with dam construction. This paper investigates temperature variation in the downstream of Yongdam Reservoir using sampled data collected from total 8 temperature monitoring stations placed along the main river and the major tributaries. Using KoRiv1, 1-dimensional dynamic water quality simulation model, temperature variation in the downstream of Yongdam Reservoir has been simulated. The simulated results were compared with sampled data collected from May 15 to August 1 2008 by applying two different temperature modeling schemes, equilibrium temperature and full heat budget method. From the result of statistical analysis, seasonal temperature variation has been simulated by applying the equilibrium temperature scheme for comparison of the difference between the reservoir operation and the natural conditions.

Acknowledgement

Grant : 자연과 함께하는 하천복원기술개발(ECORIVER21)

Supported by : 한국건설교통기술평가원

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