The Distribution of Small Particulates Which Act as Condensation and Freezing Nuclei
Abstract
Ground observations and measurements made over the past five years have indicated an increasing concentration of small particulates in the general atmosphere throughout the United States. Many of these minute particles act as condensation and freezing nuclei in cloud development and subsequent precipitation mechanisms; others are irritating to the eyes, nose and throat. These observations have been strengthened by aerial measurements of particulates over, and adjacent to, many of our metropolitan areas. The most pronounced changes in background nuclei and other particulate matter have been noted in the southern half of California. These studies suggest the possibility of major changes in natural precipitation amounts and increases in the stability of ground fog over large areas of California.
Document Details
- Document Type
- Technical Report
- Publication Date
- Sep 01, 1969
- Accession Number
- AD0860806
Entities
People
- Thomas J. Henderson