If the light columns are due to the horizontal alignment of ice crystals, then the spread of the column into a pattern that would normally occur would indicate that the ice crystals are no longer properly aligned. This might be due to a thermal inversion or a wind shear.
William Hartung
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- Mon Jan 12, 2009 3:08 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Unusual Light Pillars Over Latvia (2009 Jan 12)
- Replies: 176
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