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Since it is possible to artificially rain, can it be artificially intervened in the rainstorm to reduce rainfall?
"Artificial rain protection" is not impossible! Only the cost will be quite large and the controllable range will be small.

"Artificial rainfall" is a means of weather modification. Strictly speaking, it should be called "artificial precipitation enhancement". Because it is not to say that it depends on the precipitation in the sky, but is subject to meteorological operating conditions. Once the sky gathers "rain clouds", you can "cast spells". Often these clouds are not the kind of obedient clouds that stay there motionless, and the staff of the meteorological department urge them to "shoot water" by launching "rain-urging rockets".

On the contrary, "artificial rain stopping" is to break up the dark clouds in the air, but this reverse operation is not only expensive, but also has no obvious effect. "Artificial precipitation enhancement" can basically achieve precipitation over the city, but "artificial rain suppression" only uses means to "drive" the clouds in one area of the air to other areas, and only the sub-cloud areas hit by "weapons" do not precipitation.

For example, during the Beijing Olympic Games, meteorologists in our country used this "novel" means to prevent precipitation at the opening ceremony. However, it is obviously unrealistic and not universal to use so much manpower and material resources just to ensure that it does not rain in a place as big as a stadium.

Principle of artificial rainfall:

According to the physical characteristics of different clouds, choose the right time to spread dry ice, silver iodide, salt powder and other catalysts into the clouds by planes and rockets to promote cloud precipitation or increase precipitation.

Under certain conditions, the microphysical process of artificially influencing clouds can stimulate clouds that can't naturally precipitation, and can also make those clouds that have more water supply and can often naturally precipitation, improve precipitation efficiency and increase precipitation. However, cloud energy that can't naturally precipitation can supply less water, so the economic value of artificial catalysis is limited.