Fig. 5

Circular polarimetric spectra of grass (A, E), forest (B and F) urban (C and G), and water (D and H). The upper panels show the fractional circular polarization per wavelength for different measuring time intervals. The middle panel shows the average of three subsequent one second measurements; the standard deviation between them is denoted by the shaded area and the corresponding S/N is shown in I, J, K, and L.
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