CALIBRATION OF MUSLE MODEL USING

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MARDIAN M.; NAJAFINEJAD A.; VARVANI J.; SHEIKH V.B.

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Journal: Journal of Water and Soil Science Year:2012 | Volume:16 | Issue:59 Page(s): 259-271

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Title

CALIBRATION OF MUSLE MODEL USING "M CORRECTION COEFFICIENT METHOD" TO PREDICT SEDIMENT LOAD OF TORRENTIAL EVENTS IN THE KAMAL SALEH DAM WATERSHED

Author(s)

MARDIAN M. | NAJAFINEJAD A. | VARVANI J. | SHEIKH V.B. | Issue Writer Certificate

Keywords

EVALUATION CRITERIAQ2

KAMAL SALEH DAMQ2

M CORRECTION COEFFICIENT METHODQ1

MUSLE MODELQ2

Abstract

Investigation in to the sediment delivery of watersheds and its variation is an important element of ecosystem management. Since sediment load depends on runoff quantity, and runoff is considered as a unique indicator of sediment load, in this research the two modified versions of the MUSLE MODEL were evaluated for 9 torrential events in two sub watersheds of the Kamal Saleh watershed in the Markazi Province of Iran. To this end, first all factors of the model including runoff, erodibility, topographic, cover management, and support practice were estimated using routine equations of the model. Then, the power coefficient in the runoff factor was corrected, applying two methods: “m correction coefficient” and “average correction coefficient. The EVALUATION CRITERIA showed that the “m correction coefficient method” (compared to the “average correction coefficient method”) reduces the difference of the observed and estimated sediment load of small and large torrential events remarkably. In fact, the application of this modified method increased the accuracy of the MUSLE by decreasing the standard deviation of prediction. Also, the validation analysis of the modified method showed that the coefficient of efficiency indexes for the Hasan-Abad station (Rudkhane Bozorg subwatershed) and Ghal' e-No station (Ashur-abad subwateshed) were 0.997 and 0.811, respectively.This result confirms the efficiency of application of “m correction coefficient method”. However, it is suggested that the performance of this method be evaluated using a sufficient number of individual hydrographs and their sedimentgraphs in other watersheds.

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APA: Copy

MARDIAN, M., NAJAFINEJAD, A., VARVANI, J., & SHEIKH, V.B.. (2012). CALIBRATION OF MUSLE MODEL USING "M CORRECTION COEFFICIENT METHOD" TO PREDICT SEDIMENT LOAD OF TORRENTIAL EVENTS IN THE KAMAL SALEH DAM WATERSHED. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), 16(59), 259-271. SID. https://sid.ir/paper/14625/en

Vancouver: Copy

MARDIAN M., NAJAFINEJAD A., VARVANI J., SHEIKH V.B.. CALIBRATION OF MUSLE MODEL USING "M CORRECTION COEFFICIENT METHOD" TO PREDICT SEDIMENT LOAD OF TORRENTIAL EVENTS IN THE KAMAL SALEH DAM WATERSHED. WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES)[Internet]. 2012;16(59):259-271. Available from: https://sid.ir/paper/14625/en

IEEE: Copy

M. MARDIAN, A. NAJAFINEJAD, J. VARVANI, and V.B. SHEIKH, “CALIBRATION OF MUSLE MODEL USING "M CORRECTION COEFFICIENT METHOD" TO PREDICT SEDIMENT LOAD OF TORRENTIAL EVENTS IN THE KAMAL SALEH DAM WATERSHED,” WATER AND SOIL SCIENCE (JOURNAL OF SCIENCE AND TECHNOLOGY OF AGRICULTURE AND NATURAL RESOURCES), vol. 16, no. 59, pp. 259–271, 2012, [Online]. Available: https://sid.ir/paper/14625/en

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