Selected examples of the application of model tests to various projects are described covering the topics of ground level drifts around buildings, roof accumulations, drifting over highways and railways, arctic drifting, snow infiltration into air intakes and special problems such as the influence of roof-mounted solar collectors on the roof snow accumulation. The model scaling laws for the simulation of snow drifting and snow deposition in water flumes and in wind tunnels are discussed. -from Authors