Microphysical extrapolation method in studying optical characteristics of smoke

V. V. Veretennikov; S. S. Men’shchikova

doi:10.1117/12.2690445

17 October 2023 Microphysical extrapolation method in studying optical characteristics of smoke

V. V. Veretennikov, S. S. Men’shchikova

Proceedings Volume 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 127805P (2023) https://doi.org/10.1117/12.2690445
Event: XXIX International Symposium "Atmospheric and Ocean Optics, Atmospheric Physics", 2023, Moscow, Russian Federation

Abstract

The results are presented of reconstructing the characteristics of scattering and absorption of light by smoke aerosol from the data on the microstructure and refractive index of smoke particles. The microphysical characteristics were obtained by inverting the spectral and angular measurements of the polarization scattering phase functions and the extinction coefficients of light in smoke aerosol formed as a result of the thermal decomposition of wood materials in the big aerosol chamber of the IAO SB RAS. As a result, the optical characteristics of smoke were determined, which were not measured experimentally (microphysical extrapolation method), such as the angular and spectral dependences of the scattering phase functions, the asymmetry parameter (the mean cosine of the scattering angle), the spectral dependences of the scattering and absorption coefficients, and the single scattering albedo. The temporal variability of the reconstructed optical characteristics of the smoke is presented.

Citation Download Citation

V. V. Veretennikov and S. S. Men’shchikova "Microphysical extrapolation method in studying optical characteristics of smoke", Proc. SPIE 12780, 29th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 127805P (17 October 2023); https://doi.org/10.1117/12.2690445

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