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Updated: May 24, 2026

Experimental Protocol to Investigate Particle Aerosolization of a Product Under Abrasion and Under Environmental Weathering
Published on: September 16, 2016
Adhesion of mineral and soot aerosols can strongly affect their scattering and absorption properties
Michael I Mishchenko1, Janna M Dlugach
1NASA Goddard Institute for Space Studies, New York, New York 10025, USA. michael.i.mishchenko@nasa.gov
Abstract:
We use the numerically exact superposition T-matrix method to compute the optical cross sections and the Stokes scattering matrix for polydisperse mineral aerosols (modeled as homogeneous spheres) covered with a large number of much smaller soot particles. These results are compared with the Lorenz-Mie results for a uniform external mixture of mineral and soot aerosols. We show that the effect of soot particles adhering to large mineral particles can be to change the extinction and scattering cross sections and the asymmetry parameter quite substantially. The effect on the phase function and degree of linear polarization can be equally significant.
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