According to the Regulations on the Administration of Weather Modification, weather modification as mentioned in these Regulations refers to

Legal analysis: Weather modification refers to the activities that artificially affect the physical and chemical processes of local atmosphere through scientific and technological means under appropriate conditions, so as to avoid or mitigate meteorological disasters and achieve the purposes of increasing rain and snow, hail suppression, rain elimination, fog elimination and frost prevention.

Legal basis: Regulations on the Administration of Weather Modification

Article 2 Whoever engages in weather modification activities within the territory of People's Republic of China (PRC) shall abide by these Regulations.

Article 3 The term "weather modification" as mentioned in these Regulations refers to the activities that, in order to avoid or mitigate meteorological disasters and make rational use of climatic resources, artificially affect the physical and chemical processes of local atmosphere through scientific and technological means under appropriate conditions to achieve the purposes of increasing rain and snow, hail suppression, rain elimination, fog elimination and frost prevention.