FunWhat is a black frost?

What is a black frost?

Frosts are meteorological phenomena that occur when the temperature of the air mass closest to the ground falls below 0 ºC. This cooling can occur for different reasons. In the case of black frost, it occurs at night due to a loss of heat from the ground by radiation to the atmosphere. Heat leakage is favored by low air humidity, a clear sky and the absence of wind.

Black frost is very harmful to plants and occurs when the air temperature, even below zero degrees, does not reach the dew point and there is no formation of ice crystals on the plant. Under these conditions, the tissues suffer more or less severe burns that give the plants a blackish appearance . From this fact the term black frost is derived, which is very feared by the peasants.

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