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:: Volume 15, Issue 54 (9-2021) ::
jwmseir 2021, 15(54): 21-28 Back to browse issues page
Hydrological Modeling of Zolachai Watershed in Salmas Townshipe (Chehric Alia) in GIS Environment by Using of ARC SWAT Model
Abolfazl Ghanbari *, Vahid Isazadeh
Abstract:   (798 Views)
  In the present study, the ARC SWAT model in ARC GIS software was used to model the Zolachai watershed in the city of Salmas (Chehric Alia). For sensitivity analysis, calibration, SPSS statistical software was used. In the model used from precipitation data, minimum temperature, maximum temperature and daily relative humidity of rain gauge and synoptic stations in the study area for 35 years (1984 to 2019), for five statistical periods of 7 years, for April, October and November used. To calibrate the ARC SWAT model in SPSS statistical software, indices of uncertainty, coefficient of determination, standard deviation, significance level and Fisher-in-law coefficient were used. The results of the uncertainty index for April, October and November were 0.8, 0.30 and 0.5 percent, respectively, and the watershed determination coefficient index for these three months was 0.0114, 0.5788 and 0.1551, respectively. Showed the percentage the standard deviation index was 0.97 percent for April, 07.07 percent for October and 1.09 percent for November. Significance level index for these three months showed 0.87 percent Fisher Sandkor coefficient as one of the important indicators of watershed validation for each quarter showed a number of 0.91 percent.
Keywords: ARC SWAT, Chehric Alia, Fisher Sandpaper coefficient, SPSS statistical software, The coefficient of determination, Watershed
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Type of Study: Applicable | Subject: Special
Received: 2020/11/9 | Accepted: 2021/04/18 | Published: 2021/11/25
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Ghanbari A, Isazadeh V. Hydrological Modeling of Zolachai Watershed in Salmas Townshipe (Chehric Alia) in GIS Environment by Using of ARC SWAT Model. jwmseir. 2021; 15 (54) :21-28
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Volume 15, Issue 54 (9-2021) Back to browse issues page
مجله علوم ومهندسی آبخیزداری ایران Iranian Journal of Watershed Management Science and Engineering
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