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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Joseph N. Mait
  • Vol. 50, Iss. 25 — Sep. 1, 2011
  • pp: 5047–5058

Estimating particle composition and size distribution from polarized water-leaving radiance

Alberto Tonizzo, Alex Gilerson, Tristan Harmel, Amir Ibrahim, Jacek Chowdhary, Barry Gross, Fred Moshary, and Sam Ahmed  »View Author Affiliations


Applied Optics, Vol. 50, Issue 25, pp. 5047-5058 (2011)
http://dx.doi.org/10.1364/AO.50.005047


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Abstract

The sensitivity of the polarization of water-leaving radiance to the microphysical parameters of oceanic hydrosols, specifically to the real part of the bulk refractive index ( n bulk ) and to the hyperbolic slope of the Junge-type particle size distribution (PSD, ξ) is analyzed using in situ measurements of the underwater polarized light, in both Case I and Case II waters, and multiple scattering computations. Based on comparisons of experimental and simulated data, estimations of the real part of the refractive index and of the slope of the PSD are given. The study yielded results that generally agreed with expectations and that have accuracies comparable to previously published techniques. The analysis also demonstrates that the inclusion of polarization in addition to traditional radiance measurements can be expected to provide complementary information on the nature of particle populations in the ocean.

© 2011 Optical Society of America

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(120.5410) Instrumentation, measurement, and metrology : Polarimetry
(120.5630) Instrumentation, measurement, and metrology : Radiometry
(010.5620) Atmospheric and oceanic optics : Radiative transfer
(010.0280) Atmospheric and oceanic optics : Remote sensing and sensors

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: March 3, 2011
Revised Manuscript: May 26, 2011
Manuscript Accepted: June 16, 2011
Published: September 1, 2011

Virtual Issues
Vol. 6, Iss. 10 Virtual Journal for Biomedical Optics

Citation
Alberto Tonizzo, Alex Gilerson, Tristan Harmel, Amir Ibrahim, Jacek Chowdhary, Barry Gross, Fred Moshary, and Sam Ahmed, "Estimating particle composition and size distribution from polarized water-leaving radiance," Appl. Opt. 50, 5047-5058 (2011)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-50-25-5047


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