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Movements of snow in the windstream, or at the ground surface, frequently create operating problems for a variety of engineering and other systems. During snowfall the snow moves with the airstream in the direction of air movement. This motion, at appreciable distances above the ground surface, may cause problems at building air intakes. Snow blockage of intake louvers can cause the development of damaging suction pressures in a ventilation system while entry and subsequent melting of snow may cause water problems. The drifting of snow, at or near the ground surface, takes place during periods when wind speeds are above some threshold value. The problems resulting from snow drifting usually arise from snow accumulations which cause excessive loadings (Seltz-Petrash 1979) or which require removal for proper vehicle or pedestrian movements.
snow movement and wind characteristics during snowfall at saskatoon, saskatchewan
Wigham, J. M. and S. M. Beck 1981. SNOW MOVEMENT AND WIND CHARACTERISTICS DURING SNOWFALL AT SASKATOON, Saskatchewan. Canadian Agricultural Engineering 23(1):49-52.
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