Important factors in obtaining uniform water distribution include wind, operating pressure, spacing of sprinklers, uniformity of sprinkler rotation, and ratio of size of range nozzle to spreader nozzle. Sprinkler installations in the past have been developed in areas of relatively low wind velocities. Rather limited data are available on the effect of wind on water distribution from the use of sprinklers under conditions of comparatively high wind velocities. To overcome the poor water distribution and to locate the point of sharp break in uniformity, a field study was undertaken with the following variables: (1) wind velocity, (2) height of riser, (3) angle of wind with respect to lateral line, (4) water pressure at riser, (5) riser spacing within and between laterals, (6) quantity of water per sprinkler head, and (7) type of sprinkler head.
South Dakota State University
Wiersma, John, "Effect of Wind Variation on Water Distribution from Rotating Sprinklers" (1955). Agricultural Experiment Station Technical Bulletins (1939-2011). 27.