Figure 1. Schematic of the effect of flow shear on the detachment and transport mechanisms in rain impacted flows. RD = raindrop detachment, ST = transport aerially by splash,RIBT = raindrop induced bed load transport by saltation and rolling, FBDT = flow driven bed load transport by saltation and rolling. NB. This scheme is a simplification of what detachment and transport process operate in rain-impacted flows at any given time. It is possible that both raindrop detachment and flow detachment can occur simultaneously in the same area. Many different particle sizes and densities occur and RIBT can occur with the movement of some particles while FDBT occurs with the movement of smaller and less dense particles in the same area.