The polarization features of light reflected by soil, desert sand, white sand and water under different conditions of illumination with natural (unpolarized) and polarized light were investigated in three narrow spectral intervals (band width approximately 150A) centered on wavelengths 3975, 5000 and 6050A. A simple 'rotating-analyzer' type photoelectric reflectometer was used in the measurements. The data was acquired in computer compatible format to facilitate Fourier analysis of the photosignal. The ...
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