A spectral analysis of albedo and bidirectional reflectances for inhomogeneous clouds

Power spectra of optical depth τ for horizontally inhomogeneous clouds were compared to power spectra of corresponding near zenith-bidirectional reflectances and albedos. Although spectra for bidirectional reflectances resembled closely those of τ, albedo spectra were steeper. These bidirectional reflectances are similar to what nadir-viewing satellites would observe, whereas the albedos are approximately those that would be measured by …