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- Mon Jan 12, 2009 2:04 pm
- Forum: The Bridge: Discuss an Astronomy Picture of the Day
- Topic: APOD: Unusual Light Pillars Over Latvia (2009 Jan 12)
- Replies: 176
- Views: 189323
Re: Unusual Light Pillars Over Latvia (2009 January 12)
My guess is like many others. The density of the ice crystals is greater closer to the ground and a change in temperature as the light moves skyward causing gradally fanning or scattering of the light. The word temperature inversion came to mind. :?: I hadn't thought about wind causing the crystals ...