The formation of fog

Some people say that the dew is falling from the sky, this is not true.Dew drops are formed from the space near the ground.

In the daytime, when the sun shines on the surface of the lake and the lake, the water will absorb and store the heat, and when the night falls, the river water will slowly release heat. quantity, so the air layer near the water is relatively warm. But the temperature on the ground drops very quickly so when the time of dawn or in the morning, the temperature on the water surface and the temperature on the ground are markedly different. When the cold air on the ground rushes to the surface, it will cool the warm air and high moisture content on the surface of the lake, causing it to condense into blocks with tiny droplets, and that is dew. The formation of dew also needs a rather important condition, that is, the wind must be calm, otherwise, the dew will not converge into a mass.

Dew seeds often appear most in the autumn, early morning in the autumn when they wake up, on the leaves, on the branches, in the fields and even on the spider webs appear tiny droplets of water sparkling by in the evening of autumn, the temperature on the ground quickly lowered, and the temperature dropped again in the middle of the night.

In windy and cloudy days, usually no dewdrops appear. On windy days, the upper and lower air layer is very fast, it is easy to spread the moisture so it is difficult to agglomerate into particles; In the cloudy days, the dense clouds covered the sky, the heat on the ground could not escape, the temperature dropped insignificantly so it could not form dew seeds.