The phenomena that you saw is called an temperature inversion. Usually temperatures decrease as you move from the ground; in this case they do not. You can sometimes see smog or smoke in a valley rising up to a certain elevation and then mixing laterally. It will not penetrate this boundary layer. Usually early morning breezes, caused by heating of the earth's surface by the sun, will perforate this boundary layer and allow for mixing of the air masses.
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Today's Featured Article - A Lifetime of Farm Machinery - by Joe Michaels. I am a mechanical engineer by profession, specializing in powerplant work. I worked as a machinist and engine erector, with time spent overseas. I have always had a love for machinery, and an appreciation for farming and farm machinery. I was born and raised in Brooklyn, New York. Not a place one would associate with farms or farm machinery. I credit my parents for instilling a lot of good values, a respect for learning, a knowledge of various skills and a little knowledge of farming in me, amo
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