Quote:
Originally Posted by FredMitchell
The description of radiational cooling in the link is not strictly accurate. It is not radiation into the air or atmosphere. Radiational cooling is radiation (black body radiation) not getting reflected back down. So it escapes the earth's atmosphere as radiation. Cloud cover, or an overhanging tree, prevent or reduce this. The tree will even be radiating toward the ground, which is why you often have frost on a lawn except under trees.
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My palms start sweating when black body radiation comes up, so I'll take your word on that inaccuracy. :-)