5 results
Research Article
Open Access Experiment of Different Mutation Strategies in Differential Evolution Algorithm Employed for Calibration of a Lumped Water Balance Model
Umut Okkan, Okkan U, Umut Kırdemir, Kırdemir U
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.086
Differential evolution algorithm (DEA) is one featured kind of population based evolutionary algorithms. Although it is stated in previous studies that the algorithm is more sensitive to the crossover rate, it is tried out in this study whe…
Research Article
Open Access Sensitivity Analysis For Control Parameters Of Hybrid And Standard PSO Algorithms: Application Via A Rainfall-runoff Model Calibration
Umut Okkan, Okkan U, Umut Kırdemir, Kırdemir U
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.085
In the phases of hydrological model calibration, the impact of control parameters of optimization algorithms on the related fitness (cost) function (reaching the global solution correctly and expeditiously) is rather essential. These contro…
Research Article
Open Access Comparison of Standardized Runoff Index and Apportionment Entropy in Hydrological Drought Analysis of Susurluk Basin Flows
Umut Okkan, Okkan U, Hatice Altun, Altun H
4th International Symposium on Innovative Approaches in Engineering and Natural Sciences 2019 https://doi.org/10.36287/setsci.4.6.084
Hydrological drought is one of the most essential natural hazards attributing water scarcity and its global impact increases due to the climate change. In particular, the usage of climate models and rainfall-runoff models for projecting the…
Research Article
Open Access Modelling Flood Routing Using Hybrid Heuristic Algorithm
Umut Okkan, Okkan U, Barış Yılmaz, Yılmaz B
2nd International Symposium on Innovative Approaches in Scientific Studies 2018
In the analysis of the flood routing problem, it is necessary to determine the change of the flood wave moving
through the channel according to time and location, and in this context, nonlinear 3-parameter Muskingum model (NL-MUSK)
is wid…
Research Article
Open Access Innovative Trend Analysis of Annual Precipitation in Southeastern Anatolia Region, Turkey
Barış Yılmaz, Yılmaz B, Umut Okkan, Okkan U
2nd International Symposium on Innovative Approaches in Scientific Studies 2018
Trend analysis of precipitation play a significant role in the efficient water resources management, especially in arid
and semi-arid regions. In this study, 48 years-long (1970-2017) annual precipitation data monitored at nine selected st…
