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Indeed, Schaefer had caused a major snowstorm on December 20, 1946 by seeding a cloud. [2] This caused GE to drop out for legal reasons. Schaefer and Langmuir assisted the U.S. military as advisors for Project Cirrus, the first large study of cloud physics and weather modification. Its most important goal was to try to weaken hurricanes. [5]
The cyclone was historically significant in that it was the first tropical cyclone to be modified as part of a multi-year operation called Project Cirrus. [ 34 ] [ 35 ] In July 1946, General Electric (GE) scientists concluded after experimentation that dry ice seeding could induce heavy rainfall and thus ultimately weaken storms by cooling ...
Project Stormfury was an attempt to weaken tropical cyclones by flying aircraft into them and seeding with silver iodide. The project was run by the United States Government from 1962 to 1983. The hypothesis was that the silver iodide would cause supercooled water in the storm to freeze, disrupting the inner structure of the hurricane. This led ...
Operation Popeye / Sober Popeye (Project Controlled Weather Popeye / Motorpool / Intermediary-Compatriot) was a military cloud-seeding project carried out by the U.S. Air Force during the Vietnam War in 1967–1972.
The concept of cloud seeding has been used off and on, mainly by militaries, since the 1940s. It is a type of weather modification that can boost the productivity of rain or snow-producing clouds ...
Hurricane modification through cloud seeding was explored in the years between 1962 and 1983, but the project ended after seeding was found to be ineffective compared to the natural forces of the ...
Cloud seeding can also take a dangerous turn. According to Reuters, in 2008 when Russians dropped a 55-lb sack of cement on a suburban house when trying to stop rain for the holidays.
In mountainous areas of the United States such as the Rocky Mountains and Sierra Nevada, [8] cloud seeding has been employed since the 1950s. Project Cirrus was an attempt by General Electric to modify the weather which ran from 1947-1952.