EFFECT OF SCALE ON SWAT MODEL PERFORMANCE IN SIMULATION OF RUNOFF (CASE STUDY: HARAZ CATCHMENT IN MAZANDARAN PROVINCE)

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GOLSHAN MOHAMMAD; KAVIAN ATAOLLAH; ROUHANI HAMED; ESMALI OURI ABAZAR

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Journal: Iranian Journal of Soil and Water Research Year:2015 | Volume:46 | Issue:2 Page(s): 293-303

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Title

EFFECT OF SCALE ON SWAT MODEL PERFORMANCE IN SIMULATION OF RUNOFF (CASE STUDY: HARAZ CATCHMENT IN MAZANDARAN PROVINCE)

Author(s)

GOLSHAN MOHAMMAD | KAVIAN ATAOLLAH | ROUHANI HAMED | ESMALI OURI ABAZAR | Issue Writer Certificate

Keywords

CALIBRATIONQ2

SENSITIVITY ANALYSISQ2

SUFI2 METHODQ2

Abstract

The performances of the hydrological models differ in simulating runoff within basins of various areas. The main objective followed here was to perform a multi-site (spatially distributed) CALIBRATION and validation of SWAT using monthly observed flows from 4 gauging stations in Haraz River and as well to assess the model’s capability in performing reliable simulations at spatial scales smaller than those in the CALIBRATION phase. To follow the purpose, SENSITIVITY ANALYSIS performed, making use of SUFI2 METHOD indicated which parameters to be used in auto CALIBRATION. CN parameter was chosen as the most sensitive one. The model simulated the time to peak as well as peak flow discharge with a highly suitable performance in the studied areas. The predicted monthly stream flow matched the observed values, with R2 and NS of 0.80 and 0.77, respectively during CALIBRATION along with 0.87 and 0.75, respectively during validation. However, values of NS for sub catchments ranged from 0.55 to 0.73 during CALIBRATION, and 0.70 to 0.77 during validation. Findings indicate that the model performance works more appropriately in large area basins.

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APA: Copy

GOLSHAN, MOHAMMAD, KAVIAN, ATAOLLAH, ROUHANI, HAMED, & ESMALI OURI, ABAZAR. (2015). EFFECT OF SCALE ON SWAT MODEL PERFORMANCE IN SIMULATION OF RUNOFF (CASE STUDY: HARAZ CATCHMENT IN MAZANDARAN PROVINCE). IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, 46(2), 293-303. SID. https://sid.ir/paper/225548/en

Vancouver: Copy

GOLSHAN MOHAMMAD, KAVIAN ATAOLLAH, ROUHANI HAMED, ESMALI OURI ABAZAR. EFFECT OF SCALE ON SWAT MODEL PERFORMANCE IN SIMULATION OF RUNOFF (CASE STUDY: HARAZ CATCHMENT IN MAZANDARAN PROVINCE). IRANIAN JOURNAL OF SOIL AND WATER RESEARCH[Internet]. 2015;46(2):293-303. Available from: https://sid.ir/paper/225548/en

IEEE: Copy

MOHAMMAD GOLSHAN, ATAOLLAH KAVIAN, HAMED ROUHANI, and ABAZAR ESMALI OURI, “EFFECT OF SCALE ON SWAT MODEL PERFORMANCE IN SIMULATION OF RUNOFF (CASE STUDY: HARAZ CATCHMENT IN MAZANDARAN PROVINCE),” IRANIAN JOURNAL OF SOIL AND WATER RESEARCH, vol. 46, no. 2, pp. 293–303, 2015, [Online]. Available: https://sid.ir/paper/225548/en

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