The Forgotten Rainmaker: SK Banerji's Pioneering Cloud Seeding Experiments in India

Strategic Insights -

In 1952, during the peak of India's monsoon season, a Kolkata scientist made history by successfully conducting cloud seeding experiments over the city, inducing rain with nearly 100% success. Dr. Sudhanshu Kumar Banerji, affectionately known as "Megh Banerji," achieved this remarkable feat using hydrogen balloons and a custom-designed cloud chamber at the College of Engineering and Technology, Jadavpur. Despite being a pioneering achievement in the field of cloud seeding, Banerji's work remains largely unknown, eclipsed by more recent attempts at artificial rainmaking.

Key Takeaways:

  • Dr. SK Banerji, a renowned Kolkata scientist, successfully induced rain in Kolkata in 1952 using hydrogen balloons and a custom-designed cloud chamber, earning him the nickname "Megh Banerji."
  • Banerji's experiments marked India's first successful artificial rainmaking attempt, using a combination of silver iodide vapour, dry ice, and gunpowder to disperse seeding material.
  • The experiments were conducted at the College of Engineering and Technology, Jadavpur, where Banerji designed and built a tall glass cloud chamber to simulate rainfall in controlled conditions.
  • Banerji's work predated similar experiments in the United States and demonstrated the potential for cost-effective cloud seeding in India.
  • Banerji's achievements include being the first Indian director general of Observatories in 1944, developing indigenous meteorological instruments during World War II, and representing India and Asia at the World Meteorological Organization (WMO) under the United Nations.
  • SK Banerji's early life and achievements are marked by his studies in mathematics at Presidency College and Calcutta University, earning a D.Sc., and working as C.V. Raman's first research assistant.

Statistics:

  • Hundred percent success rate in Banerji's cloud seeding experiments in 1952.
  • 2 years spent by Banerji conducting experiments in his custom-designed cloud chamber at the College of Engineering and Technology, Jadavpur.
  • 1944: Year Banerji became the first Indian director general of Observatories.

Sources:

  • DNA (Daily News & Analysis), "The Forgotten Rainmaker", Copyright 2010 Diligent Media Corporation Ltd., All Rights Reserved.
  • Contify.com, via a third-party source.