RUNOFF THRESHOLD ESTIMATION USING RAINFALL SIMULATOR IN FIELD PLOTS

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EBRAHIMI NADERGHOLI; ESLAMI ALIREZA; SHARIFI FOUROD

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Journal: WATERSHED ENGINEERING AND MANAGEMENT Year:2015 | Volume:7 | Issue:2 Page(s): 211-222

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Title

RUNOFF THRESHOLD ESTIMATION USING RAINFALL SIMULATOR IN FIELD PLOTS

Author(s)

EBRAHIMI NADERGHOLI | ESLAMI ALIREZA | SHARIFI FOUROD | Issue Writer Certificate

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Abstract

Climatic conditions in arid and semi-arid regions, poor vegetation cover and mountainous conditions of watersheds concentrates surface water as floodwater and cause vital and financial damages in industrial, urban and rural areas. Runoff threshold is one of most important factors in accurately estimation of flood volume and intensity for designing and securing constructive projects which saves expenses and leads to optimum dimensions of structures. In this research, rainfall simulator was used to investigate the effective factors on runoff threshold. Rainfall intensities of eight to 40 mm/h in periods of 15, 30, 60 and 120 minutes were simulated and runoff thresholds were measured. Acceptable methods for estimation of runoff threshold were introduced based on rainfall characteristics and pedology and geology parameters using measured data and multivariable linear and nonlinear regression methods. Results demonstrated that the rainfall volume and intensity as climatic factors, vegetation cover and slope as terrain factors and soil texture as pedologic factors are the most effective ones in runoff threshold. The relation of independent factors and their partnership in runoff threshold is statistically acceptable for the research area. The results showed a significant correlation (R2=0. 98) between estimated and viewed runoff threshold.

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APA: Copy

EBRAHIMI, NADERGHOLI, ESLAMI, ALIREZA, & SHARIFI, FOUROD. (2015). RUNOFF THRESHOLD ESTIMATION USING RAINFALL SIMULATOR IN FIELD PLOTS. WATERSHED ENGINEERING AND MANAGEMENT, 7(2 ), 211-222. SID. https://sid.ir/paper/234616/en

Vancouver: Copy

EBRAHIMI NADERGHOLI, ESLAMI ALIREZA, SHARIFI FOUROD. RUNOFF THRESHOLD ESTIMATION USING RAINFALL SIMULATOR IN FIELD PLOTS. WATERSHED ENGINEERING AND MANAGEMENT[Internet]. 2015;7(2 ):211-222. Available from: https://sid.ir/paper/234616/en

IEEE: Copy

NADERGHOLI EBRAHIMI, ALIREZA ESLAMI, and FOUROD SHARIFI, “RUNOFF THRESHOLD ESTIMATION USING RAINFALL SIMULATOR IN FIELD PLOTS,” WATERSHED ENGINEERING AND MANAGEMENT, vol. 7, no. 2 , pp. 211–222, 2015, [Online]. Available: https://sid.ir/paper/234616/en

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