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Models for integrat...
Models for integrated and differential scattering optical properties of encapsulated light absorbing carbon aggregates
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- Kahnert, Michael, 1968 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Nousiainen, T. (författare)
- Helsingin Yliopisto,University of Helsinki
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- Lindqvist, H. (författare)
- Helsingin Yliopisto,University of Helsinki
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(creator_code:org_t)
- 2013
- 2013
- Engelska.
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Ingår i: Optics Express. - 1094-4087 .- 1094-4087. ; 21:7, s. 7974-7993
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Abstract
Ämnesord
Stäng
- Optical properties of light absorbing carbon (LAC) aggregates encapsulated in a shell of sulfate are computed for realistic model geometries based on field measurements. Computations are performed for wavelengths from the UV-C to the mid-IR. Both climate- and remote sensing-relevant optical properties are considered. The results are compared to commonly used simplified model geometries, none of which gives a realistic representation of the distribution of the LAC mass within the host material and, as a consequence, fail to predict the optical properties accurately. A new core-gray shell model is introduced, which accurately reproduces the size- and wavelength dependence of the integrated and differential optical properties.
Ämnesord
- NATURVETENSKAP -- Fysik (hsv//swe)
- NATURAL SCIENCES -- Physical Sciences (hsv//eng)
Nyckelord
- p577
- t-matrix
- morphology
- wavelength
- absorption
- black carbon
- electromagnetic scattering
- v430
- aerosol-particles
- ang h
- 1990
- proceedings of the royal society-mathematical and physical sciences
- discrete-dipole approximation
- in-situ
- soot
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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