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Proceedings Paper

Retrieval of the aerosol vertical distribution from atmospheric radiance
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Paper Abstract

The feasibility of retrieving aerosol vertical distribution from the ratio of atmospheric radiance in, and out of, the oxygen A-band is investigated. Two typical cases of aerosol vertical profiles are considered, namely an exponential profile (aerosols concentrated near the surface), and a Gaussian profile (aerosols concentrated in altitude). The problem is expressed as a linear inverse problem with a compact operator, and a Tikhonov regularization scheme is implemented for its inversion. It is found that the exponential profile can be reconstructed accurately and in a stable manner, while this is not the case for the profile with aerosols concentrated in altitude. These results are explained by the spectral properties of the operator. Information on profile shape and/or utilization of spectral ratios more sensitive to upper layers would improve reconstruction when aerosols are located in altitude.

Paper Details

Date Published: 19 December 2008
PDF: 9 pages
Proc. SPIE 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters, 71501R (19 December 2008); doi: 10.1117/12.806527
Show Author Affiliations
Bruno Pelletier, UMR 5149, CNRS, Univ. de Montpellier II (France)
Robert Frouin, Scripps Institution of Oceanography, Univ. of California, San Diego (United States)
Philippe Dubuisson, Univ. de Lille 1 (France)

Published in SPIE Proceedings Vol. 7150:
Remote Sensing of Inland, Coastal, and Oceanic Waters
Robert J. Frouin; Serge Andrefouet; Hiroshi Kawamura; Mervyn J. Lynch; Delu Pan; Trevor Platt, Editor(s)

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