OSA's Digital Library

Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 40, Iss. 30 — Oct. 20, 2001
  • pp: 5503–5507

Relationship of light scattering at an angle in the backward direction to the backscattering coefficient

Emmanuel Boss and W. Scott Pegau  »View Author Affiliations


Applied Optics, Vol. 40, Issue 30, pp. 5503-5507 (2001)
http://dx.doi.org/10.1364/AO.40.005503


View Full Text Article

Enhanced HTML    Acrobat PDF (468 KB)





Browse Journals / Lookup Meetings

Browse by Journal and Year


   


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools

Share
Citations

Abstract

We revisit the problem of computing the backscattering coefficient based on the measurement of scattering at one angle in the back direction. Our approach uses theory and new observations of the volume scattering function (VSF) to evaluate the choice of angle used to estimate b b . We add to previous studies by explicitly treating the molecular backscattering of water (bbw) and its contribution to the VSF shape and to b b . We find that there are two reasons for the tight correlation between observed scattering near 120° and the backscattering coefficient reported by Oishi [Appl. Opt. 29, 4658, (1990)], namely, that (1) the shape of the VSF of particles (normalized to the backscattering) does not vary much near that angle for particle assemblages of differing optical properties and size, and (2) the ratio of the VSF to the backscattering is not sensitive to the contribution by water near this angle. We provide a method to correct for the water contribution to backscattering when single-angle measurements are used in the back direction (for angles spanning from near 90° to 160°) that should provide improved estimates of the backscattering coefficient.

© 2001 Optical Society of America

OCIS Codes
(010.3920) Atmospheric and oceanic optics : Meteorology
(010.4450) Atmospheric and oceanic optics : Oceanic optics
(290.1350) Scattering : Backscattering

History
Original Manuscript: March 16, 2001
Revised Manuscript: July 2, 2001
Published: October 20, 2001

Citation
Emmanuel Boss and W. Scott Pegau, "Relationship of light scattering at an angle in the backward direction to the backscattering coefficient," Appl. Opt. 40, 5503-5507 (2001)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-30-5503


Sort:  Author  |  Year  |  Journal  |  Reset  

References

  1. H. R. Gordon, O. B. Brown, R. E. Evans, J. W. Brown, R. C. Smith, K. C. Baker, D. C. Clark, “A semianalytic model of ocean color,” J. Geophys. Res. D 96, 10909–10924 (1988). [CrossRef]
  2. M. S. Twardowski, E. Boss, J. B. Macdonald, W. S. Pegau, A. H. Barnard, J. R. V. Zaneveld, “A model for retrieving oceanic particle composition and size distribution from measurements of the backscattering ratio and spectral attenuation,” J. Geophys. Res. 106, 14129–14142 (2001). [CrossRef]
  3. T. Oishi, “Significant relationship between the backward scattering coefficient of sea water and the scatterance at 120°,” Appl. Opt. 29, 4658–4665 (1990). [CrossRef] [PubMed]
  4. R. A. Maffione, D. R. Dana, “Instruments and methods for measuring the backward-scattering coefficient of ocean waters,” Appl. Opt. 36, 6057–6067 (1997). [CrossRef] [PubMed]
  5. A. Morel, B. Gentili, “Diffuse reflectance of oceanic waters: its dependence on Sun angle as influenced by the molecular scattering contribution,” Appl. Opt. 30, 4427–4438 (1991). [CrossRef] [PubMed]
  6. A. Morel, B. Gentili, “Diffuse reflectance of oceanic waters. II. Bidirectional aspects,” Appl. Opt. 32, 6864–6878 (1993). [CrossRef] [PubMed]
  7. A. Morel, “Optical properties of pure water and pure sea water,” in Optical Aspects of Oceanography, N. G. Jerlov, E. S. Neilsen, eds. (Academic, New York, 1974), pp. 1–24.
  8. T. J. Petzold, “Volume scattering functions for selected ocean waters,” Rep. 72–78 (Scripps Institution of Oceanography, La Jolla, Calif., 1972).
  9. C. D. Mobley, B. Gentili, H. R. Gordon, Z. Jin, G. W. Kattawar, A. Morel, P. Reinersman, K. Stamnes, R. H. Stavn, “Comparison of numerical models for computing underwater light fields,” Appl. Opt. 32, 7484–7505 (1993). [CrossRef] [PubMed]
  10. G. R. Fournier, J. L. Forand, “Analytic phase function for ocean water,” in Ocean Optics XII, J. S. Jaffe, ed., Proc. SPIE2258, 194–201 (1994). [CrossRef]
  11. G. P. Fournier, M. Jonasz, “Computer-based underwater imaging analysis,” in Airborne and In-Water Underwater Imaging, G. D. Gilbert, ed., Proc. SPIE3761, 62–70 (1999). [CrossRef]
  12. H. C. van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957).
  13. A. Morel, A. Bricaud, “Light attenuation and scattering by planktonic cells: a theoretical modeling,” Appl. Opt. 25, 571–580 (1986). [CrossRef]
  14. D. Stramski, D. A. Kiefer, “Light scattering by microorganisms in the open ocean,” Prog. Oceanogr. 28, 343–383 (1991). [CrossRef]
  15. C. D. Mobley, Sequoia Scientific, Inc., 15317 NE 90th St., Redmond, Wash. 98052 (personal communication, 2001).
  16. V. I. Haltrin, M. E. Lee, O. V. Martynov, “Polar nephlometer for sea truth measurements,” in Proceedings of the Second International Airborne Remote Sensing Conference and Exhibition (Environmental Research Institute of Michigan, Ann Arbor, Mich., 1996), pp. 444–450.
  17. C. F. Bohren, D. R. Huffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983).

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.

Figures

Fig. 1 Fig. 2 Fig. 3
 
Fig. 4 Fig. 5
 

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited