Accession Number:

AD0742081

Title:

Project Foggy Cloud III. Phase I.

Descriptive Note:

Technical publication,

Corporate Author:

NAVAL WEAPONS CENTER CHINA LAKE CALIF

Personal Author(s):

• Wright,Tommy L.
• Clark,Richard S.
• St.-Amand,Pierre

Report Date:

1972-04-01

Pagination or Media Count:

79.0

Abstract:

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

Descriptors:

• (*FOG
• SCATTERING)
• (*LANDING FIELDS
• FOG)
• STRATUS CLOUDS
• AIRCRAFT LANDINGS
• AMMONIUM COMPOUNDS
• NITRATES
• UREA
• WATER
• CALIFORNIA
• CEILING
• VISIBILITY
• CLASSIFICATION
• AVIATION SAFETY

Subject Categories:

• Meteorology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE