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Posts Tagged ‘January 15’

A cow Elk bellows and a Bull Elk test the cold air for scents. Taken with a Canon 5DMII and a EF300L IS f/2.8:

 

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I took this photo last Tuesday. It is a frost flower and was created naturally.  This the finest, and most beautiful, and latest in the season, I have ever seen.

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The formation of frost flowers is dependent on a freezing weather condition occurring when the ground is not already frozen. The sap in the stem of the plants will expand (water expands when frozen), causing long, thin cracks to form along the length of the stem. Water is then drawn through these cracks via capillary action and freezes upon contact with the air. As more water is drawn through the cracks it pushes the thin ice layers further from the stem, causing a thin “petal” to form. In the case of woody plants and (living or dead) tree branches the freezing water is squeezed through the pores of the plant forming long thin strings of ice that look uncannily like hair i.e. “hair ice” or “frost beard”.

The petals of frost flowers are very delicate and will break when touched. They usually melt or sublimate when exposed to sunlight and are usually visible in the early morning or in shaded areas.

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