Retrieval of the aerosol vertical distribution from atmospheric radiance

Bruno Pelletier; Robert Frouin; Philippe Dubuisson

doi:10.1117/12.806527

19 December 2008 Retrieval of the aerosol vertical distribution from atmospheric radiance

Bruno Pelletier, Robert Frouin, Philippe Dubuisson

Proceedings Volume 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters; 71501R (2008) https://doi.org/10.1117/12.806527
Event: SPIE Asia-Pacific Remote Sensing, 2008, Noumea, New Caledonia

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.

Citation Download Citation

Bruno Pelletier, Robert Frouin, and Philippe Dubuisson "Retrieval of the aerosol vertical distribution from atmospheric radiance", Proc. SPIE 7150, Remote Sensing of Inland, Coastal, and Oceanic Waters, 71501R (19 December 2008); https://doi.org/10.1117/12.806527

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