From: Food PhD <FoodPhD@aol.com>
Date: Tue, 5 May 1998 00:14:26 EDT
To: pinhole@exploratorium.edu
Subject: Meteorology questions
Just a quick and, hopefully, straightforward question.
I know why clouds can be irregularly shaped. Why are cumulonimbus clouds flat
on the bottom?
Actually, while I'm at it, one more question.
In air, turbulence is caused by density differences (hot air rising and cold
air sinking). Some turbulence can be predicted based on weather and terrain.
Where does clear air turbulence come from? What causes the density
differences to form in a clear sky away from weather fronts over flat open
terrain like Kansas?
Rob Kravets
Benicia HS