Tuesday, July 3, 2012
Baby Birds and a Lesson in Clouds
The scientist in me got me researching the internet this morning to see what causes these cloud formations, and I thought I'd share, since it's pretty neat. They are "cirrocumulus clouds". The bottom pictures is a typical formation.
According to a NASA site, and a glider pilot chat board that I found, the rows develop when thermal "troughs" or winds line up. A glider pilot called them "highways in the sky", as, according to him, there is no wind directly below the clouds, as all of the "downdrafts" or "updrafts" from the temperature change are in the "empty" rows. Pretty cool huh?
I also found this fascinating story about Australia's "Morning Glory" natural phenomenon, probably the most spectacular example of this cloud phenomenon or cloud formation. It apparently attracts pilots from all over the world. Here's another link that shows this. Amazing!