An experimental model study was conducted to determine the behavior of induced motion in a salt water body overlain by fresh water. For the study, a narrow tank was constructed from plastic sheets of 0.25-inch thickness. The tank's overall length was 100 inches, its depth, 51 inches, and width, 0.06 inch. Salt water of various concentrations was injected always at the same level in the lower part of the tank. Fresh water, added at the top of the tank, was drawn out under the action of suction head through a 0.25-inch diameter nylon tube fixed at the top of the tank. For a given concentration, the development of the saline mound to a steady state was recorded for various discharges. (Author)