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Information Journal Paper

Title

Sensitivity Assessment of Two Water Quality Models NSFWQI and IRWQISC in Haraz River

Pages

  816-830

Abstract

 Water quality indicators are a standard for classifying surface water based on the use of standard parameters and are a mathematical tool that converts a large amount of data used to describe water properties into a number and obtains a water quality level. This study aimed to assess and compare the sensitivity of NSFWQI and IRWQISC water quality indicators to quality parameters using variance-based methods on Haraz River with monthly sampling in 2022 in 7 selected stations in the range of Panjab to Haraz Reservoir Dam in the province Mazandaran. The results of the present study have shown that the water quality in S1 (upstream) and S2-1 stations are relatively good at best, and bad at worst. Water quality in stations of S2, S3, S4, S5-1, and S5 (downstream), in the best case, is moderate and in the worst case in September has poor quality. SRC method was used to analyze the uncertainty and sensitivity of the NSFWQI Index and FAST and SOBOL methodologies were used for the IRWQISC Index. The results of sensitivity analysis based on the Factor Prioritization approach showed that in NSFWQI Index, DO, BOD, CF, T, and P parameters respectively and in IRWQISC Index after DO parameter, BOD, P, and N parameters had the most impact on output. In the uncertainty analysis, the results of applying the SOBOL methodology for different stations of Haraz River were consistent with the FAST method, but the results of sensitivity analysis obtained from these two methods were different from each other. Considering the obtained results and despite the similarity of the results of the two methods, it can be said that the SOBOL methodology has been more successful than the FAST methodology in this study due to unconditional convergence.

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    APA: Copy

    LARIJANI, S., BANEJAD, H., KAVIAN, A., & Ziaei, A. N.. (2022). Sensitivity Assessment of Two Water Quality Models NSFWQI and IRWQISC in Haraz River. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, 16(4 ), 816-830. SID. https://sid.ir/paper/1054195/en

    Vancouver: Copy

    LARIJANI S., BANEJAD H., KAVIAN A., Ziaei A. N.. Sensitivity Assessment of Two Water Quality Models NSFWQI and IRWQISC in Haraz River. IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE[Internet]. 2022;16(4 ):816-830. Available from: https://sid.ir/paper/1054195/en

    IEEE: Copy

    S. LARIJANI, H. BANEJAD, A. KAVIAN, and A. N. Ziaei, “Sensitivity Assessment of Two Water Quality Models NSFWQI and IRWQISC in Haraz River,” IRANIAN JOURNAL OF IRRIGATION AND DRAINAGE, vol. 16, no. 4 , pp. 816–830, 2022, [Online]. Available: https://sid.ir/paper/1054195/en

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