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Relationships among sprinkler uniformity measures
From among many different measures of uniformity (or nonuniformity) of application of water by sprinkler irrigation, five are defined; they have been termed Christiansen coefficient of uniformity, coefficient of variation, Wilcox-Swales uniformity coefficient, UDSA pattern efficiency, and "higher" pattern efficiency; these are all effectively measures of dispersion of precipitation about mean; coefficient of variation and Wilcox-Swales uniformity coefficient are complementary; no simple relationships between other measures can be derived, but it is shown that some limited experiments support notion that relationships are approximately those that would exist if precipitation were normally distributed, even though it seldom is.
Relationships among sprinkler uniformity measures
From among many different measures of uniformity (or nonuniformity) of application of water by sprinkler irrigation, five are defined; they have been termed Christiansen coefficient of uniformity, coefficient of variation, Wilcox-Swales uniformity coefficient, UDSA pattern efficiency, and "higher" pattern efficiency; these are all effectively measures of dispersion of precipitation about mean; coefficient of variation and Wilcox-Swales uniformity coefficient are complementary; no simple relationships between other measures can be derived, but it is shown that some limited experiments support notion that relationships are approximately those that would exist if precipitation were normally distributed, even though it seldom is.
Relationships among sprinkler uniformity measures
ASCE -- Proc (J Irrigation Drainage Div)
Howell, D.T. (author) / Beale, J.G. (author)
1966
8 pages
Article (Journal)
English
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