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Parameter Optimization of QUAL2K Using Influence Coefficient Algorithm and Genetic Algorithm  

Cho, Jae-Heon (Department of Health and Environmental Hygiene, Kwandong University)
Lee, Chang-Hun (Department of Health and Environmental Hygiene, Kwandong University)
Publication Information
Journal of Environmental Impact Assessment / v.18, no.2, 2009 , pp. 99-109 More about this Journal
Abstract
In general, manual calibration is commonly used for the stream water quality modelling. Because the manual calibration depends upon the subjectivity and experience of the researcher, it has a problem with the objectivity of the modelling. Thus, the interest about the automatic calibration by the optimization technique is deeply increased. In this study, Influence coefficient algorithm and Genetic algorithm are introduced to develop an automatic calibration model for the QUAL2K that are the latest version of the QUAL2E. Genetic algorithm, used in this study, is very simple and easy to understand but also applicable to any complicated mathematical problem, and it can find out the global optimum solution effectively. The developed automatic calibration model is applied to the Gangneung Namdaecheon. The calibration results about the 11 water quality variables show the good correspondence between the calculated and observed water quality values.
Keywords
automatic calibration; Influence coefficient algorithm; Genetic algorithm; QUAL2K; Gangneung Namdaecheon;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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1 전경수, 이길성, 1993, 영향계수를 이용한 QUAL2E 모형의 반응계수 추정, 대한토목학회논문집, 13(4), 163-176
2 Goktas, R. K. and Aksoy, A., 2007, Calibration and verification of QUAL2E using genetic algorithm optimization, Journal of Water Resources Planning and Management, 133(2), 126-136   DOI   ScienceOn
3 Goldberg, D. E., 1989, Genetic algorithms in search, optimization and machine learning, Addison-Wesley, Massachusetts
4 Ng, A. W. M. and Perera, B. J. C., 2003, Selection of genetic algorithm operators for river water quality model calibration, Engineering Applications of Artificial Intelligence, 16, 529-541   DOI   ScienceOn
5 Chapra, S. C., Pelletier, G. J., and Tao, H. 2008, QUAL2K: A Modeling Framework for Simulating River and Stream Water Quality, Version 2.11: Documentation and Users Manual, Civil and Environmental Engineering Dept., Tufts University, Medford, MA
6 Becker, L. and Yeh, W. W. G., 1972, Identification of parameters in unsteady open channel flow, Water Resources Research, 8(4), 956-965   DOI
7 Cho, J. H., Sung, K. S., and Ha, S. R., 2004, A river water quality management model for optimising regional wastewater treatment cost using a genetic algorithm, Journal of Environmental Management, 73(3), 229-242   DOI   ScienceOn
8 조재현, 성기석, 2004, 유전알고리즘을 이용한 하천수질관리모형에 관한 연구, 대한상하수도학회, 18(4), 453-460
9 Pelletier, G. J. and Chapra, S. C., 2004, QUAL2Kw theory and documentation (version 5.1): A modeling framework for simulating river and stream water quality, from: http://www. ecy.wa.gov/programs/eap/models/
10 Brown, L. C. and Barnwell, T. O. Jr., 1987, The enhanced stream water quality models QUAL2E and QUAL2E-UNCAS: Documentation and user manual, Environmental Research Laboratory, Office of Research and Development, U.S.EPA/600/3-87 /007
11 Liu, S., Butler, D., Brazier, R., Heathwaite, L., and Khu, S. T., 2007, Using genetic algorithms to calibrate a water quality model, Science of the Total Environment, 374, 260-272   DOI   ScienceOn
12 백경원, 김상호, 한건연, 송재우, 1995, QUAL2E에 의한 한강 하류부에서의 수질해석, 대한토목학회논문집, 15(2), 451-461
13 김성태, 채수권, 김건흥, 1999, 유전알고리즘을 이용한 QUAL2E 모형의 반응계수 추정, 대한토목학회논문집, 19(II-4), 507-514
14 Little, K. W. and Williams, R. E., 1992, Leastsquares calibration of QUAL2E, Water Environment Research, 64(2), 179-185   DOI
15 Mulligan, A. E. and Brown, L. C., 1998, Genetic algorithms for calibrating water quality models, Journal of Environmental Engineering, 124(3), 202-211   DOI   ScienceOn
16 조재현, 이종호, 2006, SWMM의 유출량 보정을 위한 매개변수 최적화, 환경영향평가 15(6), 435-441
17 Kim, K. S. and Je, C. H., 2006, Development of a framework of automated water quality parameter optimization and its application, Environmental Geology, 49, 405-412   DOI   ScienceOn
18 Gen, M. and Cheng, R., 1997, Genetic algorithms and engineering design, John Wiley&Sons, New York, 1-2
19 Kannel, P. R., Lee, S., Lee Y. S., Kanel, S. R., and Pelletier, G. J., 2007, Application of automated QUAL2Kw for water quality modeling and management in the Bagmati River, Nepal, Ecological Modelling, 202, 185-190
20 Carroll, D. L., 2004, http://cuaerospace.com/carroll/ga.html