Studies of Spatial Inhomogeneities in Smoke Plumes
Final rept. 1 Oct 1987-30 Sep 1991
SRI INTERNATIONAL MENLO PARK CA
Pagination or Media Count:
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.
- Computer Programming and Software
- Combustion and Ignition