INSTANTANEOUS UNIT SEDIMENT GRAPH MODELING

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NOOR H.; SADEGHI S.H.R.

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Journal: IRAN-WATER RESOURCES RESEARCH Year:2012 | Volume:7 | Issue:4 (22) Page(s): 62-70

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Information Journal Paper

Title

INSTANTANEOUS UNIT SEDIMENT GRAPH MODELING

Author(s)

NOOR H. | SADEGHI S.H.R. | Issue Writer Certificate

Keywords

ARTIFICIAL SEDIMENT GRAPHQ3

INSTANTANEOUS UNIT SEDIMENT GRAPHQ3

SUSPENDED SEDIMENTQ3

KOJOUR WATERSHEDQ3

Abstract

Soil erosion and sediment yield from watershed are among key limitations to achieve sustainable land use and to maintain the water quality. Development of the sediment graph (SG) is essentially required for accurate estimation of sediment yield from the watershed. However, development of SGs for watersheds is a tedious and time consuming task. Development of the sediment graph models based on easily accessible physical characteristics of a watershed and precipitation data is therefore a viable and convenient tool for designing the efficient soil and water conservation measures. In this regard, driving synthetic SGs using INSTANTANEOUS UNIT SEDIMENT GRAPH (IUSG) is an applied approach in watersheds where detailed discharge and sediment data are not available. However, the performance of this approach in watershed scale with different governing conditions has rarely been evaluated. The present study formulated IUSG for KOJOUR WATERSHED comprising an area of some 500 Km2. The Watershed located at east of Nowshahr City in Mazandaran Province, northern Iran. The SUSPENDED SEDIMENT samples were taken from Kojour River during eight storm events in 2008 and corresponding SGs were then developed. The results showed that the IUSG model is unable to predict observed SGs components of peak, time to peak, total sediment yield, and the base time having respective estimation errors of 764, 111,750 and 101%.

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APA: Copy

NOOR, H., & SADEGHI, S.H.R.. (2012). INSTANTANEOUS UNIT SEDIMENT GRAPH MODELING. IRAN-WATER RESOURCES RESEARCH, 7(4 (22)), 62-70. SID. https://sid.ir/paper/100251/en

Vancouver: Copy

NOOR H., SADEGHI S.H.R.. INSTANTANEOUS UNIT SEDIMENT GRAPH MODELING. IRAN-WATER RESOURCES RESEARCH[Internet]. 2012;7(4 (22)):62-70. Available from: https://sid.ir/paper/100251/en

IEEE: Copy

H. NOOR, and S.H.R. SADEGHI, “INSTANTANEOUS UNIT SEDIMENT GRAPH MODELING,” IRAN-WATER RESOURCES RESEARCH, vol. 7, no. 4 (22), pp. 62–70, 2012, [Online]. Available: https://sid.ir/paper/100251/en

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