Accession Number : AD0164679

Title :   Weather Modification Utilizing Microencapsulated Material.

Descriptive Note : Patent Application,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Nelson,L. D.

Report Date : 20 SEP 1973

Pagination or Media Count : 10

Abstract : The patent application describes a fog and cloud seeding agent using microencapsulation techniques whereby controlled seeding particle size for both dry initial particles and particles dispensed as solution droplets provides for the production and maintenance of a predetermined particle spectrum when using hygroscopic chemical compounds which are fragile, brittle or friable in crystalline structure. A hygroscopic chemical agent to be used in cloud or fog seeding is provided with a liquid permeable capsule shell such that optimization of particle size for improved seeding results is obtained.

Descriptors :   *Cloud seeding, *Weather modification, Encapsulation, Polymers, Ethyl cellulose

Subject Categories : Meteorology

Distribution Statement : APPROVED FOR PUBLIC RELEASE