Background

Rain induction methods involves seeding chemicals such as silver nitrate ions which could produce negative impact on the environment. With the advent of commercially available ultra-high power compact ultrafast laser technology new methods to induce rain by high intensity light beams are proposed. Some of them used backscattered light to evaluate efficiency of air filamentation as a cause of water condensation. However, they did not determine amount of rain from different states in the atmosphere. Another approach to use ultrashort UV laser pulses is expected to offer a much more efficient activation of nucleation and growth in the atmosphere since it requires less photons than in the Near infrared region. However, it may be harmful for humans. Thus, there