Analyses of scattering characteristics of chosen anthropogenic aerosols

Miroslawa Kaszczuk; Zygmunt Mierczyk; Michal Muzal

doi:10.1117/12.800121

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15 October 2008 Analyses of scattering characteristics of chosen anthropogenic aerosols

Miroslawa Kaszczuk, Zygmunt Mierczyk, Michal Muzal

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Proceedings Volume 7107, Remote Sensing of Clouds and the Atmosphere XIII; 710712 (2008) https://doi.org/10.1117/12.800121
Event: SPIE Remote Sensing, 2008, Cardiff, Wales, United Kingdom

Abstract

In the work, analyses of scattering profile of chosen anthropogenic aerosols for two wavelengths (λ₁ = 1064 nm and λ₂ = 532 nm) were made. As an example of anthropogenic aerosol three different pyrotechnic mixtures (DM11, M2, M16) were taken. Main parameters of smoke particles were firstly analyzed and well described, taking particle shape and size into special consideration. Shape of particles was analyzed on the basis of SEM pictures, and particle size was measured. Participation of particles in each fixed fraction characterized by range of sizes was analyzed and parameters of smoke particles of characteristic sizes and function describing aerosol size distribution (ASD) were determinated. Analyses of scattering profiles were carried out on the basis of both model of scattering on spherical and nonspherical particles. In the case of spherical particles Rayleigh-Mie model was used and for nonspherical particles analyses firstly model of spheroids was used, and then Rayleigh-Mie one. For each characteristic particle one calculated value of four parameters (effective scattering cross section σ_SCA, effective backscattering cross section σ_BSCA, scattering efficiency Q_SCA, backscattering efficiency Q_BSCA) and value of backscattering coefficient β for whole particles population. Obtained results were compared with the same parameters calculated for natural aerosol (cirrus cloud).

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Miroslawa Kaszczuk, Zygmunt Mierczyk, and Michal Muzal "Analyses of scattering characteristics of chosen anthropogenic aerosols", Proc. SPIE 7107, Remote Sensing of Clouds and the Atmosphere XIII, 710712 (15 October 2008); https://doi.org/10.1117/12.800121

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