Portable rainfall simulator and plot unit for use in field studies of infiltration, runoff and erosion.

Published online
22 May 1970
Content type
Journal article
Journal title
Journal of Applied Ecology

Costin, A. B. & Gilmour, D. A.

Publication language


The equipment described uses 6 in. wide mild-steel plates for top and jointed side-sections to form a 10 × 6 ft plot with an angle-iron collecting drain forming the fourth side and with an outlet leading to a suitable container. Simulated rainfall is supplied to the plot from drums of water by means of a mobile engine-driven centrifugal pump fitted with a by-pass valve. The actual application onto the plot is by a hand-operated boom. The simulated rain has a median drop size of 1.3 mm at an intensity of 320 points hr--1 and at a terminal velocity of 26 ft sec--1.

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