MECHANISMS OF AEROSOL PARTICLE DISPERSION IN THE FREE ATMOSPHERE

Abstract

The paper considers the dispersion in the free atmosphere of solid particles of irregular shape 100-1000 microns in diameter from altitudes of 500- 8000 meters, and of spherical particles 30-100 microns in diameter from altitudes of 500-1000 meters. Luminescent particles of sand and plastic were employed as an indicator. Particle distribution on the earth's surface was studied. Empirical formulas are given which permit computation of the surface concentration of particles which have fallen from an instantaneous point source in a specific distribution according to descent velocity, depending on the altitude of the source and average land velocity. An analysis of the dispersion factors of impurities settling in the atmosphere is given.

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Document Details

Document Type
Technical Report
Publication Date
Sep 25, 1969
Accession Number
AD0695511

Entities

People

  • A. N. Miroshkina
  • G. M. Petrova

Organizations

  • United States Army Foreign Science and Technology Center

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Accuracy
  • Aircrafts
  • Altitude
  • Atmospheric Motion
  • Boundaries
  • Equations
  • Experimental Data
  • High Altitude
  • Materials
  • Particle Size
  • Scattering
  • Temperature Gradients
  • Turbulence
  • Turbulent Diffusion
  • Wind
  • Wind Direction
  • Wind Velocity

Readers

  • Aerosol Science/Aerosol Physics
  • Mathematics or Statistics
  • Space Exploration and Orbital Mechanics.