Project Foggy Cloud IV, Phase 1. Evaluation of Warm Fog Dissipation Techniques.
Abstract
Project Foggy Cloud IV, Phase 1, 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 26 July to 7 October 1971, using a fixed-wing aircraft as a delivery vehicle. The seeding agents were water and a solution of ammonium nitrate, urea, and water developed during Project Foggy Cloud 1. The effects of the wing-tip vortices from the aircraft were investigated. One of the three definitive tests with wing-tip vortices improved the visibility above field minimums. One of the four definitive tests with water improved visibility above minimums. Three of the six definitive tests with the ammonium nitrate/urea/water solution improved visibility above minimums. The technique using the hygroscopic solution was the most effective. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Aug 01, 1973
- Accession Number
- AD0766086
Entities
People
- Edward E. Hindman Ii.
- Pierre St.-amand
- Richard S. Clark
Organizations
- Naval Air Weapons Station China Lake