A pseudo-spectral time domain method for light scattering computation
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Springer-Verlag Berlin Heidelberg 2013. Atmospheric particles, for example ice crystals, dust, soot, or various chemical crystals, play a significant role in the atmosphere by scattering and absorbing radiation, principally in two bands: incident solar, with peak at about 0.5 m, and terrestrial thermal emission, with peak at about 10 m. Knowledge of aerosol scattering properties is a fundamental but challenging aspect of radiative transfer studies and remote sensing applications. In this chapter we consider only scattering by single homogeneous particles, but in the atmosphere particles occur both individually and as constituents of such aerosols as homogeneous or heterogeneous aggregates with other particles and sometimes coated with liquids. The pseudo-spectral time domain method (PSTD) for calculating scattering properties that we discuss, like a number of other methods currently in use, can be used to investigate scattering properties of a wide variety of aerosols, homogeneous or heterogeneous, singly or in aggregate.
