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Factors Affecting Precipitation Formation |
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Following are the factors mainly responsible for the formation of precipitation
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Mechanism of CoolingThis is the only mechanism capable of producing the degree and rate of cooling needed to account for heavy rainfall. Condensation of Water Vapor
Growth of DropletIf in a layer of clouds there is a mixture of water droplets and ice crystals, the saturation vapor pressure over ice is lower than that over water. This leads to the evaporation of water drops and condensation of much of this water on ice crystals causing their growth and ultimate fall through the clouds. This effect is known as Bergeron’s effect. The ice crystals will further grow as they fall and collide with water droplets. |