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loveisamyth 68M
849 posts
1/25/2015 1:07 pm
SKI HALOES

For people in the northern hemisphere, now is the time to go skiing. Little known fact: Ski lifts are great places to see ice halos. Olivier Staiger photographed this specimen on Jan. 23rd while he was riding in a cable car in the Les Violettes ski region of Switzerland.

"All morning the area was blanketed in stratus clouds and fog," says Staiger. "Shortly before arriving at Les Violettes, the cable car emerged from the fog and I saw this very nice display of ice halos, sundogs and more."

Snow-making machines at the ski resort played a key role in creating this display. Atmospheric optics expert Les Cowley explains: "Diamond dust ice crystals growing slowly downwind of ski-slope snow blowers filled the air. Sunlight shining through the crystals produced the display. These man-made crystals tend to be more optically perfect than the ones in clouds and so we get bright, sharp and often very rare halos. Outstanding in this display is a lower tangent arc shining just below the horizon."