Modelling mineral dust using stereophotogrammetry

H. Lindqvist, O. Jokinen, K. Kandler, T. Nousiainen


Real, three-dimensional shape of a dust particle is derived from a pair of scanning-electron microscope images by means of stereophotogrammetry. The resulting shape is discretized, and preliminary discrete-dipole-approximation computations for the single dust particle reveal that scattering by such an irregular shape differs notably from scattering by a sphere or a Gaussian random sphere which both are frequently used shape models for dust particles.


Mineral dust; Stereophotogrammetry

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