TY - JOUR T1 - Estimating Optimum Parameters of Non-Linear Muskingum Model of Routing using Imperialist Competition Algorithm (ICA) TT - تخمین پارامترهای بهینه مدل روندیابی ماسکینگام غیرخطی با استفاده از الگوریتم رقابت استعماری (ICA) JF - JSTNAR JO - JSTNAR VL - 19 IS - 73 UR - http://jstnar.iut.ac.ir/article-1-3155-en.html Y1 - 2015 SP - 321 EP - 334 KW - DoAab Samsami River KW - Genetic Algorithm KW - Imperialist Competition Algorithm KW - Meta-Exploratory Algorithms KW - Particle Swarm Optimization KW - Wilson Flood. N2 - Non-linear Muskingum model is an efficient method for flood routing. However, the efficiency of this method is influenced by three applied parameters. Therefore, efficiency assessment of Imperialist Competition Algorithm (ICA) to evaluate optimum parameters of non-linear Muskingum model was addressed in this study. In addition to ICA, Genetic Algorithm (GA) and Particle Swarm Optimization (PSO) were also used to find an available criterion to verify ICA. In this regard, ICA was applied for Wilson flood routing then, routing of two flood events of DoAab Samsami River was investigated. In case of Wilson flood, the target function was considered as the sum of squared deviation (SSQ) of observed and calculated dischargem. Routing two other floods, in addition to SSQ, another target function was also considered as the sum of absolute deviations of observed and calculated discharge. For the first floodwater based on SSQ, GA indicated the best performance however, ICA was in the first place, based on SAD. For the second floodwater, based on both target functions, ICA indicated a better operation. According to the obtained results, it can be said that ICA could be recommended as an appropriate method to evaluate the parameters of Muskingum non-linear model. M3 10.18869/acadpub.jstnar.19.73.321 ER -