A multi-purpose rainfall simulator for field infiltration and erosion studies
R. J. Loch, B. G. Robotham, L. Zeller, N. Masterman, D. N. Orange, B. J. Bridge, G. Sheridan and J. J. Bourke
Australian Journal of Soil Research
39(3) 599 - 610
Published: 2001
Abstract
This paper describes a rainfall simulator developed for field and laboratory studies that gives great flexibility in plot size covered, that is highly portable and able to be used on steep slopes, and that is economical in its water use.The simulator uses Veejet 80100 nozzles mounted on a manifold, with the nozzles controlled to sweep to and from across a plot width of 1.5 m. Effective rainfall intensity is controlled by the frequency with which the nozzles sweep. Spatial uniformity of rainfall on the plots is high, with coefficients of variation (CV) on the body of the plot being 8–10%. Use of the simulator for erosion and infiltration measurements is discussed.
Keywords: calibration, spatial uniformity of rainfall, parameter derivation, rainfall kinetic energy.
https://doi.org/10.1071/SR00039
© CSIRO 2001
