Through a Fredholm integral equation of the first kind, aerosol
kernel functions relate the variations in radiance measured by
satellites to the variations in the aerosol extinction profile and thus
permit profile retrieval from radiance measurements by inversion of the
set of radiative transfer equations for various spectral
intervals. Previously [Appl. Opt. 36, 1328
(1997)] the kernel functions were evaluated for the red and
near-infrared spectral regions outside molecular absorption
bands. Here they are computed within the oxygen A band
with 20-cm-1 spectral resolution. It is shown that,
even with such a relatively low spectral resolution, the new set of
kernels is able to provide better information on and improved accuracy
of the retrieved profile.
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