Optical and microphysical characteristics of smoke aerosol

Andrey A. Isakov

doi:10.1117/12.337018

13 January 1999 Optical and microphysical characteristics of smoke aerosol

Andrey A. Isakov

Proceedings Volume 3583, Fifth International Symposium on Atmospheric and Ocean Optics; (1999) https://doi.org/10.1117/12.337018
Event: Fifth International Symposium on Atmospheric and Ocean Optics, 1998, Tomsk, Russian Federation

Abstract

The results of complex experiments on smoke aerosol study are presented. The complex inverse problem has been solved for the data of light-scattering matrix measurements for a number of smokes. That have allowed to retrieve the volume particle's size distribution as well as real and imaginary parts of refractive index of particle matter. It was found that the majority of smokes, in particule's radii region r equals 0.05 - 2 mcm, have narrow single modal volume size distribution, which can be approximated by lognormal one. The connections among materials, which were burned, methods of burning particles sizes and their refractive index were displayed. For some smokes, the anomalous spectral dependences of the extinction coefficient and the degree of linear polarization were detected. The calculations by means of the harmonical oscillator model showed that this effect can be explained by the existence of an absorption band in this spectral region.

Citation Download Citation

Andrey A. Isakov "Optical and microphysical characteristics of smoke aerosol", Proc. SPIE 3583, Fifth International Symposium on Atmospheric and Ocean Optics, (13 January 1999); https://doi.org/10.1117/12.337018

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