Accession Number:

ADA065259

Title:

Densitometric Analyses to Determine Artificial Cloud Expansion Characteristics.

Descriptive Note:

Final rept. 15 Feb 75-14 Feb 78,

Corporate Author:

PHOTOMETRICS INC LEXINGTON MASS

Personal Author(s):

Report Date:

1978-03-15

Pagination or Media Count:

26.0

Abstract:

A program of microdensiometric reduction and computer analysis of photographic images of smoke and chemical tracers in the stratosphere and upper atmosphere is described. Turbulent heating rates, diffusion coefficients and other parameters of turbulence were determined by Fourier and statistical analysis of digitally recorded optical density distributions. Wind data derived by the smoke trail method in the stratosphere and mesosphere was also analyzed to determine Richardson numbers and values of heating and turbulent diffusivity. Investigation of the introduction of vertical velocities into AFGL model atmosphere codes was undertaken and turbulent diffusion coefficients were made available for input to these codes. Author

Subject Categories:

  • Atmospheric Physics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE