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Virtual Journal for Biomedical Optics

Virtual Journal for Biomedical Optics

| EXPLORING THE INTERFACE OF LIGHT AND BIOMEDICINE

  • Editor: Gregory W. Faris
  • Vol. 4, Iss. 4 — Apr. 1, 2009

Effects of bulk particle characteristics on backscattering and optical closure

Grace Chang and Amanda L. Whitmire  »View Author Affiliations


Optics Express, Vol. 17, Issue 4, pp. 2132-2142 (2009)
http://dx.doi.org/10.1364/OE.17.002132


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Abstract

Optical closure is essential for the determination of biogeochemical properties from ocean color remote sensing information. Mie scattering theory, a radiative transfer model, and a semi-analytical inversion algorithm were used to investigate the influence of particles and their properties on optical closure. Closure results were generally poor. Absorption coefficient (at) inversions were more accurate for moderate particle size distribution slopes (3.50 ≤ ξ ≤ 3.75). The degree of success in the derivation of the backscattering coefficient (bbp) was highest at moderate indices of refraction (1.15 ≤ np ≤ 1.20) and high values of ξ (> 3.75). Marked improvements in the estimates of bbp were enabled by a priori knowledge of bbp at one wavelength. At moderate values of np, derivations of at and bbp were within 25% of Mie-modeled values when Gershun’s relationship was used in combination with the semi-analytical algorithm.

© 2009 Optical Society of America

OCIS Codes
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(010.0280) Atmospheric and oceanic optics : Remote sensing and sensors

ToC Category:
Atmospheric and Oceanic Optics

History
Original Manuscript: November 3, 2008
Revised Manuscript: December 3, 2008
Manuscript Accepted: January 23, 2009
Published: February 2, 2009

Virtual Issues
Vol. 4, Iss. 4 Virtual Journal for Biomedical Optics

Citation
Grace Chang and Amanda L. Whitmire, "Effects of bulk particle characteristics on backscattering and optical closure," Opt. Express 17, 2132-2142 (2009)
http://www.opticsinfobase.org/vjbo/abstract.cfm?URI=oe-17-4-2132


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