Water-Temperature Prediction of Streams Entering into Imha Reservoir using Multi-Regnssion Method

다중회귀분석을 이용한 임하호 유입하천의 수온예측

  • Yi, Yong-Kon (Korea Institute of Water and Environment, Korea Water Resources Corporation) ;
  • Lee, Sanguk (Korea Institute of Water and Environment, Korea Water Resources Corporation) ;
  • Koh, Deuk Koo (Korea Institute of Water and Environment, Korea Water Resources Corporation)
  • 이용곤 (한국수자원공사 수자원연구원) ;
  • 이상욱 (한국수자원공사 수자원연구원) ;
  • 고덕구 (한국수자원공사 수자원연구원)
  • Received : 2006.06.16
  • Accepted : 2006.08.02
  • Published : 2006.09.30


The regression models for the water temperatures of Ban Byeon Stream and Yong Jeon stream were developed using multi-regression method. It was also investigated that the applicability of the stream temperature prediction to two-dimensional numerical simulation to predict the vertical water temperature in Imha Reservoir. Air temperature and dew point as independent variables were selected to be applicable to cases with the different variation of flow rates. The data division of water temperature using a cutoff flow rate of $20m^3/s$ was found to reduce the prediction error of the stream temperature. The mean absolute percent error of the numerical simulation results of the vertical water temperature in Imha Reservoir using the regression models was 11%, which was only 4.3% lager than the simulation result using the measured stream temperature. Therefore, the regression models of the stream temperatures using multi-regression method applied in this study could be applied to predict the vertical water temperature in Imha Reservoir with a good accuracy.


  1. 김범철, 김윤희, 아시아 몬순지역의 대형댐(소양호)에서의 인순환과 2차원모델의 적용, 대한육수학회지, 37(2), pp. 205-212 (2004)
  2. 김윤희, 김범철, 최광순, 서동일, 2차원 수리 수질모델(CE-QUAL-W2)을 이용한 소양호 수온 성층현상과 홍수기 밀도류 이동 현상의 모델링. 상하수도학회지, 15(1), pp. 40-49 (2001)
  3. 나은혜, 안규홍, 박석순, 팔당호의 계절별 전도현상과 연직 수온 분포에 관한 모델 연구, 대한환경공학회지, 24(5), pp. 901-910 (2002)
  4. 박기영, 한건연, 2차원 수치모형을 활용한 임하댐 탁도 분석 시스템 구축, 대한토목학회 2003년도 학술발표회 논문집(CD-ROM) (2003)
  5. 박성현, 희귀분석, 민영사, 서울, pp. 578-583 (1998)
  6. 박옥란, 박석순, 옥정호의 연직 수온분포에 관한 시변화 모델 연구, 대한육수학회지, 35(2), pp. 79-91 (2002)
  7. 이용곤, 김영도, 박기영, 김우구, 임하호 탁도변화분석을 위한 2차원 수치모델링, 대한토목학회 논문집, 5(4B), pp. 257-266 (2005)
  8. 정세웅, 오정국, 고익환, CE-QUAL-W2 모형을 이용한 저수지 탁수의 시공간분포모의, 한국수자원학회 논문집, 38(8), pp. 655-664 (2005)
  9. 한국수자원공사, 암하댐 저수지 퇴샤량 조사 보고서 (1997)
  10. Carron, J. C. and Rajaram, H., Impact of Variable Reservoir Releases on Management of Downstream Temperatures, Water Resours. Res., 37(6), pp. 1733-1743 (2001) https://doi.org/10.1029/2000WR900390
  11. Chung, S.-W. and Gu, R., Two-dimensional Simulations of Contaminant Currents in Stratified Reservoir, J. Hydr. Engrg, ASCE, 124(7), pp. 704-711 (1998) https://doi.org/10.1061/(ASCE)0733-9429(1998)124:7(704)
  12. Cole, T. M. and Wells, S. A., CE-QUAL-W2: A Two-dimensional, Laterally Averaged Hydrodynamic and Water Quality Model, Version 3.1, User manual, Instruction Report EL-03-1 (2003)
  13. Fischer, H. B., List, E. J., Koh, R. C. Y., Imberger, J. and Brooks, N. H., Mixing in Inland and Coastal Waters, Academic Press, New York, New York (1979)
  14. Hockey, J. B., Owens, I. F., and Tapper, N. J., Empirical and Theoretical Models to Isolate the Effect of Discharge on Summer Water Temperature in the Hurunui River, J. Hydrol. (New Zeland), 21(1), pp. 1-12 (1982)
  15. Mohseni, O., Erickson T. R., and Stefan H. G., Upper Bounds for Stream Temperatures in the Contiguous United States, Journal of Environmental Engineering, 128(1), pp. 4-11 (2002) https://doi.org/10.1061/(ASCE)0733-9372(2002)128:1(4)
  16. Morrill, J. C., Bales, R. C., and Conklin, M. H., Estimating Stream Temperature from Air Temperature: Implications for Future Water Quality, Journal of Environmental Engineering, 131(1), pp. 139-146 (2005) https://doi.org/10.1061/(ASCE)0733-9372(2005)131:1(139)
  17. Nuemann, D. W., Rajagopalan. B., and Zagona, E. A., Regression Model for Daily Maximum Stream Temperature, Journal of Environmental Engineering, 129(7), pp. 667-674 (2003) https://doi.org/10.1061/(ASCE)0733-9372(2003)129:7(667)
  18. Stow, C. A., Roessler, C., Borsuk, M. E., Bowen, J. D., and Reckhow, K. H., Comparison of Estuarine Water Quality Models for Total Maximum Daily Load Development in Neuse River Estuary, Journal of Water Resources Planning and Management, 129(4), pp. 307-314 (2003) https://doi.org/10.1061/(ASCE)0733-9496(2003)129:4(307)
  19. Taylor, R. L., Simulation of Hourly Stream Temperature and Daily Dissolved Solids for the Truckee River, California and Nevada. Water-Resources investigations Rep. No. WRI 98-4064, U.S. Geologic Survey, Reston, Va. (1998)