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Geography Categories
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| Definition Of: |
HALO
The ring of light that seems to encircle the sun or moon when veiled by cirrus clouds. To produce this phenomena, the ice crystals must be in a heterogeneous arrangement to refract the sunlight. The most commonly observed is a halo that forms at a 22° radius, although another one at 46° radius may also be seen.
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Meteorology INDEX:
List of Terms: Terms beginning with "A", Page 1 |
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Page Number:
1 2 3 4 5 A: Page 1 of 5.
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