|
|||||
|
|
Accuracy of Global Microirrigation Distribution Uniformity Estimates |
|
| Authors: | Stuart W. Styles Charles M. Burt Franklin Gaudi Sierra Orvis |
| Affiliation: | 1Associate 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: sstyles@calpoly.edu 2Professor, 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: cburt@calpoly.edu 3Irrigation Engineer, Irrigation Training and Research Center, California Polytechnic State Univ., San Luis Obispo, CA 93407-0730. E-mail: fgaudi@calpoly.edu 4Student, Dept. of BioResource and Agricultural Engineering, California Polytechnic State Univ., San Luis Obispo, CA 93407-0730. E-mail: saorvis@calpoly.edu |
| 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. |
| Keywords: | Trickle irrigation Water distribution systems Computer software Flow rates Evaluation |