Project Foggy Cloud III. Phase I.
NAVAL WEAPONS CENTER CHINA LAKE CALIF
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Foggy Cloud III, Phase I is part of a continuing series of experiments concerning the modification and dispersal of warm fog and stratus clouds. Tests were conducted at the Arcata-Eureka Airport, Humboldt County, Calif. from 27 July to 24 October 1970, using fixed-wing aircraft as delivery vehicles. The seeding agents were 1 a solution of ammonium nitrate, urea, and water developed during Foggy Cloud I, and 2 water. Of the 19 seeding tests, 17 showed some response to seeding. The results of seeding seven fogs classified as steady-state were completely successful, with ceilings and visibilities improved sufficiently to permit normal flight operations. Author