Scaling and constructing models for outdoor snowdrift tests

Reduced-scale models have proved a useful tool in predicting snowdrift patterns formed by structures and terrain features, solving practical engineering problems on an individual case basis. Successful modeling requires attention to dynamic conditions and to the model's proper scaling, their durability, and advanced preparation for modeling runs. This paper describes experience gained in 7 years of constructing these small-scale models that give consistant results in this dynamic environment.