Sensitivity Analysis of Surface Runoff Simulation Parameters in Velenjak sub-basin of the Tehran city: Application of VARS, Sobol and Morris Methods

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HASHEMI M.; MAHJOURI N.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2019 | Volume:14 | Issue:4 Page(s): 73-85

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Title

Sensitivity Analysis of Surface Runoff Simulation Parameters in Velenjak sub-basin of the Tehran city: Application of VARS, Sobol and Morris Methods

Author(s)

HASHEMI M. | MAHJOURI N. | Issue Writer Certificate

Keywords

Urban RunoffQ1

SWMMQ1

Velenjak WatershedQ1

Sensitivity AnalysisQ1

VARSQ1

UncertaintyQ1

Abstract

Integrated management of Urban Runoff is important to the sustainable development of urban infrastructures neglecting of which would not only lead to waste of resources, but also may cause considerable problems from the perspective of living environment and transportation inside the city. Therefore, Urban Runoff modeling and prediction of flood are essential. In this paper, the Velenjak catchment in Tehran city was selected as the study area and the SWMM model was used to simulate rainfall-runoff process. Due to the spatial variations of the model parameters, the model response was subjected to Uncertainty. The purpose of this paper was to identify, rank and screen the parameters that contribute to variability of model responses and to identify the impact of each parameter on the Uncertainty of the model response. For the first time, the Sensitivity Analysis of the SWMM model performance based on the different metricse was performed on the basis of the variogram. To do this, the fifteen parameters of SWMM model were considered and the Sensitivity Analysis was performed using three methods of VARS, Sobol and Morris and the results of the three methods were compared. Overall, six parameters were identified as the effective parameters.

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APA: Copy

HASHEMI, M., & MAHJOURI, N.. (2019). Sensitivity Analysis of Surface Runoff Simulation Parameters in Velenjak sub-basin of the Tehran city: Application of VARS, Sobol and Morris Methods. IRAN-WATER RESOURCES RESEARCH, 14(4 ), 73-85. SID. https://sid.ir/paper/100085/en

Vancouver: Copy

HASHEMI M., MAHJOURI N.. Sensitivity Analysis of Surface Runoff Simulation Parameters in Velenjak sub-basin of the Tehran city: Application of VARS, Sobol and Morris Methods. IRAN-WATER RESOURCES RESEARCH[Internet]. 2019;14(4 ):73-85. Available from: https://sid.ir/paper/100085/en

IEEE: Copy

M. HASHEMI, and N. MAHJOURI, “Sensitivity Analysis of Surface Runoff Simulation Parameters in Velenjak sub-basin of the Tehran city: Application of VARS, Sobol and Morris Methods,” IRAN-WATER RESOURCES RESEARCH, vol. 14, no. 4 , pp. 73–85, 2019, [Online]. Available: https://sid.ir/paper/100085/en

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