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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 31, Iss. 18 — Jun. 20, 1992
  • pp: 3473–3480

Accounting for the multiple-scattering effect in radiation intensities at the top of the atmosphere

A. Jayaraman and P. Koepke  »View Author Affiliations


Applied Optics, Vol. 31, Issue 18, pp. 3473-3480 (1992)
http://dx.doi.org/10.1364/AO.31.003473


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Abstract

For obtaining aerosol optical depths over the ocean by using satellite measured radiances computations of backscattered solar radiation fields are necessary. Since a detailed multiple-scattering algorithm is time consuming a simple approach that allows parametrization of multiple-scattering processes is desired. Here the differences between multiple-scattered radiances, which are calculated by the successive order of scattering method, and single-scattered radiances, which use a simple single-scattering equation, and are obtained for different aerosol models defined as a correction term. It is shown that all correction terms could be linearly fitted with aerosol optical depths if they are scaled by the single-scattering albedo and 1 minus the asymmetry factor of the aerosol models considered. An analytic expression for the correction factor is obtained. Thus it is shown that multiple-scattered radiances at the top of the atmosphere can be estimated directly from the single-scattered radiances and with the correction term for all Sun-satellite geometries that are usually used for remote sensing of aerosol turbidities over ocean surfaces with an uncertainty of less than 10% for aerosol optical depths up to 0.5 in the visible region.

© 1992 Optical Society of America

History
Original Manuscript: June 2, 1989
Published: June 20, 1992

Citation
A. Jayaraman and P. Koepke, "Accounting for the multiple-scattering effect in radiation intensities at the top of the atmosphere," Appl. Opt. 31, 3473-3480 (1992)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-31-18-3473


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