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Applied Optics

Applied Optics


  • Vol. 34, Iss. 24 — Aug. 20, 1995
  • pp: 5552–5555

Columnar aerosol properties over oceans by combining surface and aircraft measurements: simulations

Howard R. Gordon and Tianming Zhang  »View Author Affiliations

Applied Optics, Vol. 34, Issue 24, pp. 5552-5555 (1995)

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We report an algorithm that can be used to invert the radiance exiting the top and bottom of the atmosphere to yield the columnar optical properties of atmospheric aerosol under clear sky conditions over the oceans. The method is an augmentation of a similar algorithm presented by Wang and Gordon [Appl. Opt. 32, 4598 (1993)] that used only sky radiance, and therefore was incapable of retrieving the aerosol phase function at the large scattering angles that are of critical importance in remote sensing of oceanic and atmospheric properties with satellites. Well-known aerosol models were combined with radiative transfer theory to simulate pseudodata for testing of the algorithm. The tests suggest that it should be possible to retrieve the aerosol phase function and the aerosol single-scattering albedo accurately over the visible spectrum at aerosol optical thicknesses as large as 2.0. The algorithm is capable of retrievals with such large optical thicknesses because all significant orders of multiple scattering are included. We believe that combining an algorithm of this type with surface-based and high-altitude aircraft-based radiance measurements could be useful for studying aerosol columnar optical properties over oceans and large lakes. The use of the retrieval method is possible over the ocean because, unlike the land surface, the albedo of the ocean is low and spatially uniform.

© 1995 Optical Society of America

Original Manuscript: January 23, 1995
Revised Manuscript: May 2, 1995
Published: August 20, 1995

Howard R. Gordon and Tianming Zhang, "Columnar aerosol properties over oceans by combining surface and aircraft measurements: simulations," Appl. Opt. 34, 5552-5555 (1995)

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