Delhi to Conduct First-Ever Artificial Rain Experiment on October 29

Strategic Insights -

Delhi's worsening air quality is set to receive a unique respite, as the city prepares for its first-ever artificial rain experiment through cloud seeding, an initiative led by IIT Kanpur and coordinated with IMD Pune, aimed at cleansing the city's atmosphere following Diwali celebrations. Environment Minister Majinder Singh Sirsa announced the Rs 3.21 crore project, which will use modified Cessna aircraft to disperse a scientifically prepared mixture of silver iodine nanoparticles, iodised salt, and rock salt into moisture-laden clouds over northwest and outer Delhi. The operation aims to induce rainfall by stimulating cloud condensation and promoting the coalescence of water droplets.

Key Takeaways:

  • The Delhi government will conduct its first-ever artificial rain experiment on October 29, with additional windows on October 28 and 30, using a modified Cessna aircraft to disperse a mixture of silver iodine nanoparticles, iodised salt, and rock salt into clouds over northwest and outer Delhi.
  • The project, worth Rs 3.21 crore, aims to stimulate cloud condensation and promote the coalescence of water droplets, enhancing rainfall and cleansing the city's atmosphere.
  • Delhi Chief Minister Rekha Gupta said experts had already conducted a successful test in the Burari area, and the preparations have been completed to induce artificial rain through cloud seeding for the first time in Delhi.
  • Cloud seeding is not a method of creating rain from nothing; it only enhances rainfall potential in existing clouds, and its success depends largely on atmospheric conditions such as humidity, temperature, and cloud type.
  • Delhi has been recording poor air quality levels in several parts of the city after Diwali, with AQI levels ranging from 295 to 402, indicating a severe air pollution situation.
  • The effectiveness of cloud seeding is unpredictable and depends entirely on suitable meteorological conditions, and experts caution that while artificial rain may offer short-term respite, it is not a permanent solution.

Statistics:

  • Rs 3.21 crore: The cost of the artificial rain experiment, aimed at cleansing the city's atmosphere following Diwali celebrations.
  • 100 square kilometres: The area that the modified Cessna aircraft will cover per flight, lasting around 90 minutes.
  • 90 minutes: The duration of each flight, during which the aircraft will disperse the mixture of chemicals into clouds.
  • 4-11 October: The trial sorties for the cloud seeding operation, which spanned several days.
  • 29 October: The day on which the first artificial rainfall is expected to take place, assuming favourable cloud conditions persist.
  • 28 and 30 October: The additional windows for the artificial rainfall, in case the first attempt is unsuccessful.

Sources:

  • Delhi Chief Minister Rekha Gupta, as reported in an X post.
  • Environment Minister Majinder Singh Sirsa, as reported in an official announcement.
  • The Indian National Press (Bombay) Pvt. Ltd., distributed by Contify.com.