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Proceedings Paper

Polarization-dependent measurements of light scattering in sea ice
Author(s): David R. Miller; Mary S. Quinby-Hunt; Arlon J. Hunt
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Paper Abstract

We have developed a bistatic, polarization-modulated nephelometer for making in situ measurements of angle- and polarization-dependent light scattering in sea ice. The instrument sits directly and noninvasively on the surface of the sea ice, and can also be used for studying scattering in seawater. A visible laser beam is directed into the medium and the scattered light is detected by the analyzer optics. Both laser and detector angles can be varied. The technique of ac polarimetry is used to accurately obtain phase function and polarization information of the scattered light. This instrument was tested by scattering from monodisperse polystyrene (latex) spheres in the laboratory. Results of Mie calculations are in good qualitative agreement with scattering measured in the laboratory. This instrument was used to measure the angle- and polarization-dependent scattering in sea ice at Pt. Barrow, Alaska May 1994. Preliminary findings indicate a large polarization signal associated with the orientational ordering of the sea ice crystallites.

Paper Details

Date Published: 26 October 1994
PDF: 12 pages
Proc. SPIE 2258, Ocean Optics XII, (26 October 1994); doi: 10.1117/12.190045
Show Author Affiliations
David R. Miller, Lawrence Berkeley Lab. (United States)
Mary S. Quinby-Hunt, Lawrence Berkeley Lab. (United States)
Arlon J. Hunt, Lawrence Berkeley Lab. (United States)

Published in SPIE Proceedings Vol. 2258:
Ocean Optics XII
Jules S. Jaffe, Editor(s)

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