The Simulation of Discharge in Upper Helmand Basin in Afghanistan Using Multi-Objective Optimization and FLEX Conceptual Model

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Roodari A.; Hassanpour f.; Yaghobzadeh M.; DELAVAR M.; Hrachowitz M.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2019 | Volume:15 | Issue:1 Page(s): 193-206

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Title

The Simulation of Discharge in Upper Helmand Basin in Afghanistan Using Multi-Objective Optimization and FLEX Conceptual Model

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Keywords

Rainfall-Runoff SimulationQ1

Multi-Objective OptimizationQ2

FLEX ModelQ1

Pareto FrontQ1

Upper Helmand Basin of AfghanistanQ1

Abstract

Hirmand River is the main drainage system in the southern part of Afghanistan and has a significant impact on the socioeconomic life of Sistan region. Long term assessment of water potential of Hirmand River requires the use of rainfall-runoff model. The present study focused on simulating the daily discharge of the upper Helmand basin in Afghanistan using the conceptual model FLEX in combination with Multi-Objective Optimization, which has not been considered in previous studies. At first, the discharge was evaluated integrally by lumped model considering one objective function. Then it was simulated using semi-distributed model by adding the logarithm of the flow to the objective function. The results indicated that the model is efficient in the semi-distributed mode by using two objective functions for calibration of parameters. The coefficients of NS, NS-log in the calibration period were respectively estimated to be 0. 86, 0. 92. They were estimated in validation period as 0. 76 and 0. 81, respectively. Pareto Front analysis gave the best optimum set for each parameter used in model simulation. The model gave satisfactory results based on monthly calibration and can be used to investigate the drought and climate change research in study basin.

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APA: Copy

Roodari, A., Hassanpour, f., Yaghobzadeh, M., DELAVAR, M., & Hrachowitz, M.. (2019). The Simulation of Discharge in Upper Helmand Basin in Afghanistan Using Multi-Objective Optimization and FLEX Conceptual Model. IRAN-WATER RESOURCES RESEARCH, 15(1 ), 193-206. SID. https://sid.ir/paper/100074/en

Vancouver: Copy

Roodari A., Hassanpour f., Yaghobzadeh M., DELAVAR M., Hrachowitz M.. The Simulation of Discharge in Upper Helmand Basin in Afghanistan Using Multi-Objective Optimization and FLEX Conceptual Model. IRAN-WATER RESOURCES RESEARCH[Internet]. 2019;15(1 ):193-206. Available from: https://sid.ir/paper/100074/en

IEEE: Copy

A. Roodari, f. Hassanpour, M. Yaghobzadeh, M. DELAVAR, and M. Hrachowitz, “The Simulation of Discharge in Upper Helmand Basin in Afghanistan Using Multi-Objective Optimization and FLEX Conceptual Model,” IRAN-WATER RESOURCES RESEARCH, vol. 15, no. 1 , pp. 193–206, 2019, [Online]. Available: https://sid.ir/paper/100074/en

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