Snow fences
From Glossary of Meteorology
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snow fence
- An open, slatted board fence usually 1–3 m high, placed upwind of a railroad track or highway.
The fence serves to create eddies in the downstream airflow, resulting in a reduced wind speed such that snow is deposited close to the fence on its leeward side. The intent is to provide a comparatively clear zone along the railroad track or highway. A snow fence is also used to accumulate drifting snow in a flat windswept area to reduce the depth of ground frost and increase soil moisture as the snow melts.
Same as Wild fence.
