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Particle distributions and index of refraction estimation for Canadian waters
Proc. SPIE 3761, 34 (1999); doi:10.1117/12.366486
Wednesday 21 July 1999
Denver, CO, USA
Airborne and In-Water Underwater Imaging
Gary D. Gilbert
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Add to FacebookExtensive measurements were carried out of the optical properties of seawater off the East and West Coasts of Canada using a full-spectrum near-forward angle nephelometer (NEARSCAT). Using a new phase function adapted specifically to scattering from water borne particles, we analyze the data from coastal waters in the Straits of Juan de Fuca and in the Gulf of St. Lawrence. We show explicitly how the spectral properties can be combined with the angular properties to more reliably extract the Junge exponent of the particle size distribution and the mean index of refraction of the particles. We obtain a simple analytic expression for the normalized cumulative phase function that can be used to compute the backscatter ratio, and its explicit wavelength dependence. Accurate estimation of this wavelength dependence is required for accurate hyperspectral image prediction.
© 2003 COPYRIGHT SPIE--The International Society for Optical Engineering. Downloading of the abstract is permitted for personal use only.
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Online Jun 02, 2003
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J. Luc Forand and Georges R. Fournier, "Particle distributions and index of refraction estimation for Canadian waters",
Proc. SPIE 3761, 34 (1999); doi:10.1117/12.366486
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