Application of the Small-Angle Approximation to Ocean Water Types

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dc.contributorVirginia Techen
dc.contributor.authorSwanson, N. L.en
dc.contributor.authorBillard, B. D.en
dc.contributor.authorGehman, V. M.en
dc.contributor.authorGennaro, T. L.en
dc.contributor.departmentPhysicsen
dc.date.accessed2014-02-24en
dc.date.accessioned2014-04-04T15:12:11Zen
dc.date.available2014-04-04T15:12:11Zen
dc.date.issued2001en
dc.description.abstractThe small-angle approximation to the radiative transport equation is applied to particle suspensions that emulate ocean water. A particle size distribution is constructed from polystyrene and glass spheres with the best available data for particle size distributions in the ocean. A volume scattering function is calculated from the Mie theory for the particles in water and in oil. The refractive-index ratios of particles in water and particles in oil are 1.19 and 1.01, respectively. The ratio 1.19 is comparable to minerals and nonliving diatoms in ocean water, and the ratio 1.01 is comparable to the lower limit for microbes in water. The point-spread functions are measured as a function of optical thickness for both water and oil mixtures and compared with the point-spread functions generated from the small-angle approximation. Our results show that, under conditions that emulate ocean water, the small-angle approximation is valid only for small optical thicknesses. Specifically, the approximation is valid only for optical thicknesses less than 3. (C) 2001 Optical Society of America.en
dc.description.sponsorshipU.S. Office of Naval Researchen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationNancy L. Swanson, Barton D. Billard, Victor M. Gehman, and Theresa L. Gennaro, "Application of the Small-Angle Approximation to Ocean Water Types," Appl. Opt. 40, 3608-3613 (2001). doi: 10.1364/ao.40.003608en
dc.identifier.doihttps://doi.org/10.1364/ao.40.003608en
dc.identifier.issn1559-128Xen
dc.identifier.urihttp://hdl.handle.net/10919/46876en
dc.identifier.urlhttp://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-40-21-3608en
dc.language.isoenen
dc.publisherOptical Society of Americaen
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subjectscatteringen
dc.subjectlimitsen
dc.titleApplication of the Small-Angle Approximation to Ocean Water Typesen
dc.title.serialApplied Opticsen
dc.typeArticle - Refereeden
dc.type.dcmitypeTexten

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