Rainfall characteristics such as rainfall intensity, raindrop size and uniformity need to be   determined as these are the deviasting parameters in soil erosion. In pressurized irrigation,  water is applied, through the network of pipes, to the crop at required depth with the desired  pressure. There exists unique relationship (Q = KHx) between pressure and discharge. However,
the intensity of rainfall, if simulated, at various pressure, the relationship between pressure and  rainfall intensity should be known. The PE of raindrop varies with height of rainfall. The impact of rainfall, in detachment of soil particles, also varies with raindrop size.
As such, to know the effect of rainfall height on uniformity, rainfall intensity, raindrop size  & wetted diameter at different water pressure, the experiment was carried out on Instructional  Farm of Dr. Annasaheb Shinde College of Agricultural Engineering, MPKV, Rahuri by using  rainfall simulator. The rainfall was simulated with the help of turbo nozzle. The height of   simulator were maintained at the interval of 0.5 m as 4.2, 3.7, 3.2 and 2.7m. The effect of water   pressures of 0.5, 1.0, 1.5, 2.0 kg/cm2, at these heights, were studied on rainfall intensity, raindrop   size and wetted diameter.   The water pressure and rainfall intensity were observed inversely proportional to each other.  For simulated rainfall, the raindrop size were found increased with increase in rainfall intensity. Rainfall intensity was found directly proportional to height of rainfall.