Publication Abstracts

Mishchenko et al. 2014

Mishchenko, M.I., L. Liu, B. Cairns, and D.W. Mackowski, 2014: Optics of water cloud droplets mixed with black-carbon aerosols. Opt. Lett., 39, no. 9, 2607-2610, doi:10.1364/OL.39.002607.

We use the recently extended superposition T-matrix method to calculate scattering and absorption properties of micrometer-sized water droplets contaminated by black carbon. Our numerically exact results reveal that, depending on the mode of soot-water mixing, the soot specific absorption can vary by a factor exceeding 6.5. The specific absorption is maximized when the soot material is quasi-uniformly distributed throughout the droplet interior in the form of numerous small monomers. The range of mixing scenarios captured by our computations implies a wide range of remote sensing and radiation budget implications of the presence of black carbon in liquid-water clouds. We show that the popular Maxwell-Garnett effective-medium approximation can be used to calculate the optical cross sections, single-scattering albedo, and asymmetry parameter for the quasi-uniform mixing scenario, but is likely to fail in application to other mixing scenarios and in computations of the elements of the scattering matrix.

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BibTeX Citation

  author={Mishchenko, M. I. and Liu, L. and Cairns, B. and Mackowski, D. W.},
  title={Optics of water cloud droplets mixed with black-carbon aerosols},
  journal={Opt. Lett.},

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RIS Citation

ID  - mi06020y
AU  - Mishchenko, M. I.
AU  - Liu, L.
AU  - Cairns, B.
AU  - Mackowski, D. W.
PY  - 2014
TI  - Optics of water cloud droplets mixed with black-carbon aerosols
JA  - Opt. Lett.
VL  - 39
IS  - 9
SP  - 2607
EP  - 2610
DO  - 10.1364/OL.39.002607
ER  -

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