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Precipitation is any form of water falling from the atmosphere to the Earth’s surface. It is the process by which atmospheric water becomes surface, or subsurface water. The term “precipitation” is also commonly used to designate the quantity of water that is falling or has fallen.

How do droplets form?

Water is available on the Earth in the following three forms: vapor, liquid and solid. A phase change (water changing from one state to another) is possible only if heat [...]

Formation Models of Precipitation

Most clouds do not precipitate. In fact, most water droplets in clouds have such a small size that they do not fall to the surface. There are two models, developed by [...]

Forms of precipitation

We have stated that, from a meteorological point of view, precipitation is water in some form, falling out of the air, and settling on the surface of the Earth. We [...]

Precipitation Measurement

Precipitation quantity or precipitation amount is the depth of water in any of its forms (rain, snow, etc.) that has fallen over a given period; it is measured in a [...]

Cloud Seeding

Cloud seeding is a form of weather modification. It can be used to disperse fog, suppress hail, or control winds, but it is most often used to increase precipitation. Cloud seeding [...]

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