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Numerical simulation of boundary effects in aerosol and cloud optics

Abstract

The problem of calculating the brightness coefficient of sunlight reflected from the atmosphere in the presence of spatially local horizontal inhomogeneities (property discontinuity surfaces) of a medium (where one-dimensional mathematical models, traditionally used in such calculations, cannot be applied) is considered. A two-dimensional mathematical model, which makes it possible to obtain the detailed spatial distribution of the brightness coefficient in the vicinity of an inhomogeneity, has been proposed and used to obtain the characteristic distributions in a model problem. It has been proposed to use a quasione-dimensional model to effectively estimate the extension of a subregion including an inhomogeneity, outside of which multidimensional effects in the brightness coefficient can be neglected, and this model has been numerically tested.

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Original Russian Text © L.P. Bass, T.A. Germogenova, O.V. Nikolaeva, A.A. Kokhanovsky, V.S. Kuznetsov, 2009, published in Optika Atmosfery i Okeana.

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Bass, L.P., Germogenova, T.A., Nikolaeva, O.V. et al. Numerical simulation of boundary effects in aerosol and cloud optics. Atmos Ocean Opt 22, 102–107 (2009). https://doi.org/10.1134/S102485600901014X

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  • DOI: https://doi.org/10.1134/S102485600901014X

Keywords

  • Solar Zenith Angle
  • Scattered Light Intensity
  • Vertical Boundary
  • Cloud Optical Thickness
  • Cloud Edge