September 18th, 2007

efield

Фото дня: Patagonia Lenticular_



Provided and copyright by: Peter Toes
Earth Science Picture of the Day:
At the end of a very nice boat trip in the Seven Lake District in Patagonia (southern Argentina), I noticed this stacked lenticular cloud formation. In combination with the sunlight beam appearing to cross the larger cloud, I felt as though I was in the middle of a science fiction movie. Alas, aliens didn't abduct me, and I could safely disembark in the beautiful port of Bariloche. Photo taken on December 24, 2004.

Lenticular clouds form when stable but a nearly saturated layer of air is forced to flow over elevated terrain, typically mountain ranges. The lifting cools the air to saturation and cloud formation, but doesn't lead to convection or instability. These clouds are usually hallmarks of stable weather conditions.

http://epod.usra.edu/archive/epodviewer.php3?oid=381760
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Project Atlantis: Animation of Lenticular Cloud Formation_
http://www.sgisland.org/pages/environ/c_clouds.htm

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Фото дня: Lenticular Cloud Over Sicily_
http://efield.livejournal.com/105283.html