Accuracy of Global Microirrigation Distribution Uniformity Estimates
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VIEW THE REPLYAuthors: Stuart W. Styles, M.ASCE [email protected], Charles M. Burt, M.ASCE [email protected], Franklin Gaudi [email protected], and Sierra Orvis [email protected]Author Affiliations
Publication: Journal of Irrigation and Drainage Engineering
Volume 134, Issue 3
Abstract
Emitter pressures and flow rates were systematically and extensively sampled in one drip and one microspray field. The data distributions are presented. The accuracy of rapid (limited samples) evaluation pressure sampling procedures was found to be quite good if the pressure distribution was systematic, but erroneous if the pressure distribution throughout a field was random. A simple mathematical combination of two nonuniformity components (due to pressure differences, and other causes of flow variation) provided a better estimate of overall system distribution uniformity than more complex mathematics.
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References
Burt, C. M. (2004). “Rapid field evaluation of drip and microspray distribution uniformity.” Irrig. Drain. Syst., 18, 275–297.
Burt, C. M., Walker, R., and Styles, S. W. (1992). Irrigation system evaluation manual—Revision 1992, Cal Poly Irrigation Training and Research Center, San Luis Obispo, Calif.
Clemmens, A. J., and Solomon, K. H. (1997). “Estimation of global irrigation distribution uniformity.” J. Irrig. Drain. Eng., 123(6), 454–461.
Information & Authors
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Published In
Journal of Irrigation and Drainage Engineering
Volume 134 • Issue 3 • June 2008
Pages: 292 - 297
Copyright
© 2008 ASCE.
History
Received: Feb 14, 2007
Accepted: Aug 1, 2007
Published online: Jun 1, 2008
Published in print: Jun 2008
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Authors
Affiliations
Associate Professor, Dept. of BioResource and Agricultural Engineering, and Director, Irrigation Training and Research Center, California Polytechnic State Univ., San Luis Obispo, CA 93407-0730. E-mail: [email protected]
Professor, Dept. of BioResource and Agricultural Engineering, and Chair, Irrigation Training and Research Center, California Polytechnic State Univ., San Luis Obispo, CA 93407-0730. E-mail: [email protected]
Irrigation Engineer, Irrigation Training and Research Center, California Polytechnic State Univ., San Luis Obispo, CA 93407-0730. E-mail: [email protected]
Student, Dept. of BioResource and Agricultural Engineering, California Polytechnic State Univ., San Luis Obispo, CA 93407-0730. E-mail: [email protected]
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