Monday, April 23, 2007

Nacreous Clouds. Nordstrand (20.01.08)

7 comments:

  1. this is beautiful..i hope i get the chance to see it one day with my own eyes

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  2. I also hope I get to see a colorful sky some day, I am guessing this is the N. Lights(?). This really is a lovely image.

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  3. Not the Northern Lights, no. The Northern Lights, the Aurora Borealis, is an atmospheric phenomena caused by the solar wind striking the Earth’s magnetosphere. We experience it occasionally here in the Oslo area, but it is much more common further north towards the Polar Circle.
    What you see here is a cloud phenomenon, so-called nacreous clouds:

    Also known as “Mother of Pearl” clouds, nacreous clouds are peppered with tiny ice crystals that blaze with iridescent colour when struck by light from the setting sun. It is these crystals that make nacreous clouds so rare: they require exceptionally low temperatures of minus 85 Celsius (-120 F) to form. Icy nacreous clouds float 9 to 16 miles high, curling and uncurling hypnotically as they are modulated by atmospheric gravity waves.

    Astoundingly beautiful, we had a week of them last January. I understand that they are quite rare.

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  4. Hi,

    Thanks for explaining that! So interesting and so cold! Nice to have another look at this image.

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  5. I stumbled upon your blog looking for a nice picture of nacreous clouds, that's a winner alright. I've seen them before in Townsville, Australia...when the timing was just right, apparently. I'm loving your blog more than the picture though :) how's the zombie finger?

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  6. Haha! Zombie finger is fine: it kind of went away. I hear nerves grow back, but that it takes a long time.
    That nacreous photo is kind of brutal. I took it years ago before I knew much about photo editing. I will put up a better version soon.
    Thanks fotr dropping by!

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