Accession Number:

ADA244844

Title:

Studies of Spatial Inhomogeneities in Smoke Plumes

Descriptive Note:

Final rept. 1 Oct 1987-30 Sep 1991

Corporate Author:

SRI INTERNATIONAL MENLO PARK CA

Personal Author(s):

Report Date:

1991-09-30

Pagination or Media Count:

70.0

Abstract:

Fractal concepts and their relevance to atmospheric processes are reviewed. Among these concepts are approaches to the estimation of fractal dimension based on the slope of the power spectrum, box counting and multidimensional feature analysis. These three approaches were applied to synthesized Brownian fractals, lidar cross sections of an elevated smoke plume, and infrared transmittance imagery of a ground-level smoke plume. The methodologies provided very good estimates of the known fractal dimensions of the synthesized data, but measures of the smoke plume characteristics exhibit considerable scatter. Extensions of the multiresolution feature analysis technique to vector fields, the use of empirically defined features is discussed. An example of an empirically defined vector feature is presented.

Subject Categories:

  • Computer Programming and Software
  • Combustion and Ignition

Distribution Statement:

APPROVED FOR PUBLIC RELEASE