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Comparison of automatic calibration techniques for simulating streamflow in tropical catchment

Harun, Sobri and Shahid, Shamsuddin and Hadipour, Sahar (2015) Comparison of automatic calibration techniques for simulating streamflow in tropical catchment. Malaysian Journal Of Civil Engineering, 27 (2). pp. 286-300. ISSN 1823-7843

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Abstract

Efficacy of hydrological model strongly depends on model calibration. A number of methods has been developed and employed for optimization of hydrological model so that model can replicate the observed streamflow accurately. A study has been carried out in this paper to find the best parameter optimization method for the calibration of a daily rainfall - runoff model for streamflow simulation of a tropical catchment. For the purpose, seven well known parameter optimization methods namely, Uniform Random Searc h, Pattern Search, Multi Start Pattern Search, Rosenbrock Method, Multi Start Rosenbrock Search, Genetic Algorithm and Suffled Complex Evaluation are used for the calibration of a conceptual hydrological model known as SIMHYD. Performance of the methods is evaluated by using Nash - Sutcliff coefficient and correlation coefficient. The result indicates that evolutionary algorithm based optimization techniques can optimize the model parameters more accurately for precise calibration of model and reliable predic tion of daily streamflow in a tropical catchment.

Item Type:Article
Subjects:A General Works
ID Code:60155
Deposited By: Haliza Zainal
Deposited On:24 Jan 2017 10:54
Last Modified:14 Sep 2017 12:59

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