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Al-Rafidain Engineering Journal (AREJ)

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Efficiency, Adequacy, and Uniformity for Normal Distribution of the Application Depths

    Haqqi I. Yasin Entesar Mhamad Ghazal

Al-Rafidain Engineering Journal (AREJ), 2021, Volume 26, Issue 2, Pages 211-217
10.33899/rengj.2021.129134.1075

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Abstract

The research aims to find a set of figures in case of the normal distribution of application depths that represent relationships for the parameters used to describe the performance characteristics of the irrigation system. Using 6010 values ​​for each of the dimensionless application depth, dimensionless cumulative area, and the coefficient of variation, with the help of the SPSS statistical program, an empirical equation was obtained to estimate the dimensionless application depth as a function of the dimensionless cumulative area and the coefficient of variation. Five figures were developed containing the relationships between dimensionless net depth of irrigation, application uniformity, coefficient of variation or uniformity coefficient, application efficiency or deep percolation losses, and storage efficiency or deficit coefficient.  By knowing two of these parameters, the rest of them can be easily found from these figures.
Keywords:
    normal distribution uniformity efficiency storage efficiency
Main Subjects:
  • Irrigation & Drainage engineering
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(2021). Efficiency, Adequacy, and Uniformity for Normal Distribution of the Application Depths. Al-Rafidain Engineering Journal (AREJ), 26(2), 211-217. doi: 10.33899/rengj.2021.129134.1075
Haqqi I. Yasin; Entesar Mhamad Ghazal. "Efficiency, Adequacy, and Uniformity for Normal Distribution of the Application Depths". Al-Rafidain Engineering Journal (AREJ), 26, 2, 2021, 211-217. doi: 10.33899/rengj.2021.129134.1075
(2021). 'Efficiency, Adequacy, and Uniformity for Normal Distribution of the Application Depths', Al-Rafidain Engineering Journal (AREJ), 26(2), pp. 211-217. doi: 10.33899/rengj.2021.129134.1075
Efficiency, Adequacy, and Uniformity for Normal Distribution of the Application Depths. Al-Rafidain Engineering Journal (AREJ), 2021; 26(2): 211-217. doi: 10.33899/rengj.2021.129134.1075
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