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Light scattering by the Martian dust analog, palagonite, modeled with ellipsoids

Merikallio, S. (author)
Illmatieteen Laitos,Finnish Meteorological Institute (FMI)
Nousiainen, T. (author)
Helsingin Yliopisto,University of Helsinki
Kahnert, Michael, 1968 (author)
Chalmers tekniska högskola,Chalmers University of Technology
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Harri, A. M. (author)
Illmatieteen Laitos,Finnish Meteorological Institute (FMI)
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 (creator_code:org_t)
2013-07-19
2013
English.
In: Optics Express. - : The Optical Society. - 1094-4087 .- 1094-4087. ; 21:15, s. 17972-17985
  • Journal article (peer-reviewed)
Abstract Subject headings
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  • We have investigated the suitability of the ellipsoidal model particles to mimic scattering by Martian dust particles by comparing simulations against laboratory data for palagonite, a Mars analog sample. By optimizing the shape distribution of ellipsoids, a very good match with a laboratory-measured scattering matrix was obtained. Even an equiprobable distribution of ellipsoids performed well. The asymmetry parameter and single-scattering albedo were found to depend on the assumed shape distribution as much as on the typical uncertainties associated with refractive indices and size, suggesting that shape is an important parameter that potentially influences remote retrievals of dust particle properties.

Subject headings

NATURVETENSKAP  -- Fysik -- Astronomi, astrofysik och kosmologi (hsv//swe)
NATURAL SCIENCES  -- Physical Sciences -- Astronomy, Astrophysics and Cosmology (hsv//eng)

Keyword

atmosphere
particles
spheroids
optical-properties

Publication and Content Type

art (subject category)
ref (subject category)

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