Rajasthan Pioneers Drone-Based Artificial Rain Trial
Rajasthan has initiated India’s first drone-based artificial rain trial at Ramgarh Dam. This marks shift from traditional aeroplane-assisted cloud seeding to the use of unmanned aerial vehicles. The trial involves around 60 drones and is a joint effort by the state agriculture department and GenX AI, a technology firm based in the US and Bengaluru. The experiment aims to enhance rainfall using advanced cloud seeding techniques.
Recent Developments in Artificial Rainmaking
The project was originally scheduled for July 31 but was postponed due to heavy rain alerts. Since then, multiple tests have been conducted in Jaipur to ensure the drones’ operational readiness. The initiative has received approvals from the Directorate General of Civil Aviation (DGCA), the India Meteorological Department, district authorities, and the agriculture department. The launch event near Ramgarh Dam is open for public viewing and will be inaugurated by the state agriculture minister Kirodi Lal Meena.
Cloud Seeding Explained
Cloud seeding is a weather modification technique that involves dispersing particles into clouds to encourage precipitation. Typically, silver iodide particles are sprayed to promote the formation of ice crystals or water droplets. This process helps clouds release rain or snow that they might not otherwise produce efficiently. Cloud seeding has been used worldwide for decades but remains scientifically complex due to variable results.
Drone Technology
The use of drones represents a technological advancement in cloud seeding. Unlike traditional aeroplanes, drones can operate at high altitudes with greater precision and flexibility. The 60 drones involved will spray chemicals into clouds over Ramgarh Dam to trigger rainfall. This method could potentially reduce costs and increase the efficiency of artificial rainmaking operations.
Effectiveness and Scientific Outlook
Studies indicate cloud seeding can increase precipitation by 5 to 20 per cent under suitable conditions. However, its success depends heavily on the presence of clouds and favourable weather. For example, a project in Idaho, USA, demonstrated that silver iodide could boost snowfall from super-cooled clouds. Despite promising results, cloud seeding is not a guaranteed solution for drought or water scarcity.
Regulatory and Environmental Considerations
The project has undergone rigorous scrutiny from multiple government bodies to ensure safety and environmental compliance. The DGCA’s approval is crucial for drone operations at high altitudes. Coordination with the India Meteorological Department ensures that cloud seeding is conducted under appropriate meteorological conditions. Environmental impacts are being closely monitored as part of the trial.
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