What is the activity of artificially influencing the weather to increase rain and snow, eliminate rain, eliminate fog and prevent frost?

The activities of increasing rain, snow, hail, clouds, fog and frost are artificial weather modification.

The term "weather modification" as mentioned in these Regulations refers to the physical and chemical process of artificially influencing the local atmosphere through scientific and technological means under appropriate conditions in order to avoid or mitigate meteorological disasters, and to achieve the purpose of increasing rainfall, snowfall, eliminating rain, eliminating fog and preventing frost.

Matters needing attention in increasing rain and snow weather:

1. Artificial rainfall operation can only obtain the result of increasing water quantity under certain natural cloud conditions, and the technical conditions are not yet suitable for artificial rainfall.

2. For clouds with different conditions, the same catalysis may lead to different positive and negative results. Therefore, in order to obtain the effect of artificial precipitation enhancement, it is necessary to conduct more in-depth detection and research on natural cloud conditions and precipitation processes.

3. The variability of natural precipitation is great, while artificial precipitation is often relatively small, so it is difficult to distinguish artificial precipitation from natural precipitation in a precipitation process. Therefore, it is still the main goal of weather modification science to evaluate the effect of artificial rainfall and its inspection method.