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http://dx.doi.org/10.3741/JKWRA.2020.53.5.347

SWAT model calibration/validation using SWAT-CUP II: analysis for uncertainties of simulation run/iteration number  

Yu, Jisoo (Integrated Water Resources Management Research Center, K-water Research Institute)
Noh, Joonwoo (Integrated Water Resources Management Research Center, K-water Research Institute)
Cho, Younghyun (Korea-Mekong Water Resources Management Collaboration Research Center, K-water Research Institute)
Publication Information
Journal of Korea Water Resources Association / v.53, no.5, 2020 , pp. 347-356 More about this Journal
Abstract
The main objective of the study is to propose the most efficient SWAT model calibration method using SWAT-CUP with less computing time and high performance. In order to achieve the goal, Case1-3 (250, 500, and 1,000 simulation runs) and Case4 (1,000 simulation runs in the first iteration and then 500 simulation runs for the following iterations) were defined to compare the results. When evaluating the values of the objective function, Case2 and Case3 reached the same value after the fourth iteration, and Case1 reached the closed value of Case2-3 after the eighth iteration. However, the final estimates of the parameters had different ranges in Cases1-3, and only the results of Case3 and Case4 converged similarly. Thus, it can be considered that the parameter calibration results are highly affected by the initial number of simulation runs. On the other hand, SWAT simulation results did not show the significant difference after the first iteration, unlike the parameter ranges. From the analysis results, we can conclude that the most suitable and effective method was to repeat one or two times of iterations with a sufficient number of simulation runs, as in Case4.
Keywords
SWAT; SWAT-CUP; Parameter calibration; Number of simulation run/iteration; Uncertainty;
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Times Cited By KSCI : 2  (Citation Analysis)
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1 Abbaspour, K.C., Johnson, C., and Van Genuchten, M.T. (2004). "Estimating uncertain flow and transport parameters using a sequential uncertainty fitting procedure." Vadose Zone Journal, ACSESS, Vol. 3, No. 4, pp. 1340-1352.   DOI
2 Abbaspour, K.C., Vaghefi, S.A., and Srinivasan, R. (2018). "A guideline for successful calibration and uncertainty analysis for soil and water assessment: A review of papers from the 2016 international SWAT conference." Water, MDPI, Vol. 10, No. 6.
3 Abbaspour, K.C., Yang, J., Maximove, I., Siber, R., Bonger, K., Mieleiner, J., Zobrist, J., and Srinivasan, R. (2007). "Modeling hydrology and water quality in the pre-alpine/alpine Thur watershed using SWAT." Journal of Hydrology, Elsevier, Vol. 333, pp. 413-430.   DOI
4 Andersson, J.C.M., Zehnder, A.J.B., Jewitt, G.P.W., and Yang, H. (2009). "Water availability, demand and reliability of in situ water harvesting in smallholder rain-fed agriculture in the Thukla River Basin, South Africa." Hydrology and Earth System Sciences, EGU, Vol. 13, pp. 2239-2347.
5 Arnold, J.G., Allen, M.V., Williams, J.R., and Bosch, D.D. (2010). "Assessment of different representations of spatial variability on SWAT model performance." Transactions of the ASABE, ASABE, Vol. 53, No. 5, pp. 1433-1443.   DOI
6 Beven, K., and Binley, A. (1992). "The future of distributed models: Model calibration and uncertainty prediction." Hydrologic Process, Wiley, Vol. 6, pp. 279-298.
7 McKay, M.D., Conover, W.J., and Beckman, R.J. (1979). "A comparison of three methods for selecting values of input variables in the analysis of output from a computer code." Technometrics, Taylor & Francis, Vol. 21, No. 2, pp. 239-245.   DOI
8 Petersen, B., Gernaey, K., Henze, M., and Vanrolleghem, P.A. (2003). "A comprehensive model calibration procedure for activated sludge model." Proceedings of the Water Environment Federation, Citeseer, Vol. 9, pp. 210-237.
9 Schuol, J., and Abbaspour, K.C. (2006). "Calibration and uncertainty issues of hydrological model (SWAT) applied to West Africa." Advanced in Geosciences, EGU, Vol. 9, pp. 137-143.   DOI
10 Sellami, H., Jeunesse, I.L., Benabdallah, S., and Vanclooster, M. (2013). "Parameter and rating curve uncertainty propagation analysis of the SWAT model for two small Mediterranean catchments." Hydrological Sciences Journal, Taylor & Francis, Vol. 58, No. 8, pp. 1635-1657.   DOI
11 Van Griensven, A., and Meixner, T. (2007). "A global and efficient multi-objective auto-calibration and uncertainty estimation method for water quality catchment models." Journal of Hydroinformatics, IWA, Vol. 9, No. 4, pp. 277-291.   DOI
12 Yu, J., Noh, J., and Cho, Y. (2020). "SWAT model calibration/validation using SWAT-CUP I: Analysis for uncertainties of objective functions." Journal of Korea Water Resources Association, KWRA, Vol. 53, No. 1, pp. 45-56.   DOI
13 Vrugt, J.A., Ter Braak, C.J., Clark, M.P., Hyman, J.M., and Robinson, B.A. (2008). "Treatment of input uncertainty in hydrologic modeling: Doing hydrology backward with Markov chain Monte Carlo simulation." Water Resources Research, AGU, Vol. 44, W00B09.
14 Yang, J., Reichert, P., Abbaspour, K., Xia, J., and Yang, H. (2008). "Comparing uncertainty analysis techniques for a SWAT application to the Chaoche Basin in China." Journal of Hydrology, Elsevier, Vol. 358, pp. 1-23.   DOI