The determination of dust cloud altitudes from a satellite using hyperspectral measurements in the gaseous absorption band
An approach to derive dust layer optical thickness and top height using top-of-atmosphere (TOA) reflectance in the oxygen A-band is introduced. The algorithm is similar to that developed by the authors for the case of water clouds. It is based on the fitting of spectral TOA reflectance measurements in the narrow band around 760 nm using results of the exact radiative transfer calculations for a given dust layer model. The accuracy of the technique with respect to the uncertainty in a priori assumption of the dust single-scattering albedo is discussed. The algorithm is applied to satellite hyperspectral measurements over the Atlantic Ocean.
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Document Type: Research Article
Affiliations: Institute of Environmental Physics, University of Bremen, Bremen, Germany
Publication date: 01 March 2010