Fency Fencington : February 21, 2009
Image Data
File Name: 50D_07592
Model: Canon EOS 50D
Lens: Canon EF 70-200mm F/2.8L USM
Date: 01.24.09 4:25pm
Focal Length: 200mm (320mm)
Shutter: 1/250 s
F-Stop: F5.6
ISO: 100
Program: Aperture priority
Metering Mode: Evaluative
Flash: Off
Focus Mode: One shot AF
File Name: 50D_07592
Model: Canon EOS 50D
Lens: Canon EF 70-200mm F/2.8L USM
Date: 01.24.09 4:25pm
Focal Length: 200mm (320mm)
Shutter: 1/250 s
F-Stop: F5.6
ISO: 100
Program: Aperture priority
Metering Mode: Evaluative
Flash: Off
Focus Mode: One shot AF
Most blizzard snow blows through a good snow fence. Downwind of the fence wind slows and drops the snow. The better the snow fence, the more snow it takes from the blizzard. The best are about half solid and half openings; lets the blizzard through, but still slows the wind. A dam backs up water on its upstream side, but a good snow fence stores most of its water downstream (downwind). The drifting of snow behind a fence follows the laws of physics as the pressure on the downwind side is less than that on the windward side, allowing light materials such as snow or leaves to settle there.
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