Monday, January 12, 2009

My World Tuesday - Hoar Frost

When I left for work this morning the world was decorated with hoar frost - kind of hard to explain if you've never seen it - looks like something you'd see in Narnia. The atmospheric conditions have to be just right for it to appear: It's a deposit of interlocking ice crystals (hoar crystals) formed by direct sublimation on objects, usually those of small diameter freely exposed to the air, such as tree branches, plant stems and leaf edges, wires, poles, etc., which surface is sufficiently cooled, mostly by nocturnal radiation, to cause the direct sublimation of the water vapor contained in the ambient air. At least that's what the National Snow and Ice Data Center website says about it.




As I write this at 9:40pm it's -7 degrees celsius, can't complain though, where Jimmy C. lives in Hay River, North West Territories it's -26C at the moment with a daytime high tomorrow of -28C. Keep warm Jimmy!
To travel a little more visit My World Tuesday. Thanks to Klaus Sandy Ivar Wren Fishing Guy Louise for all your hard work on the site.

8 comments:

  1. Thanks. Great pictures. We don't get too much hoar frost in Oklahoma. I would like to see it in person somewhere some day.

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  2. To me this is a winter wonderland. Still no snow here and I do miss it.

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  3. You have captured some nice frosties. The second one is so cool.

    I don´t have to go all the way to Narnia to see scenes like that!

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  4. Great photos and excellent post. I love white pictures.

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  5. Isn't itwonderful how hoar frost transforms ones mundane surroundings into fairy land! Nice shots, especially with the blossom tree.

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  6. That's a lot of snow. It makes everything look so different. I really like the shot with the bench in it.

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  7. What a stunning winter wonderland! Especially love the magic of the last photo!

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  8. Lovely photos of the moon and the I really like the snow dusted branches with the picnic table. Nice blog. Look very cold.

    I have a friend who lives in Alberta, Canada.

    Ella

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