Vol. 12, issue 06, article # 19

pdf Isakov A. A., Begunov S. L., Golovyatinskii S. A., Tikhonov A. V. Spectropolarimetric studies of atmospheric aerosols. // Atmospheric and oceanic optics. 1999. V. 12. No. 06. P. 537-542.
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A spectropolarimeter for the investigation of natural and smoke aerosols is described. The instrument allows one to measure the scattering phase function and linear polarization of scattered light at three angles 45°, 90°, and 135° in the spectral region 0.4–0.75 mm with quasicontinuous scanning of the spectrum. Some measurement results are presented, obtained under conditions of high transparency of the atmosphere (meteorological visibility range Sm = 30 km) and in damp haze (Sm = 5 km). From these optical characteristics the inverse problem is solved, i.e., the particle-volume size distributions are reconstructed and the complex refractive index of the particle material and the dependence of the condensation activity of the particles on radius are estimated.