. Compendium of meteorology. Meteorology. SUN'S ELEVATION Fig. 1.—Polarization at the point of maximum polarization (in the sun's vertical, 90° from the sun) for different sun's elevations Observed values (Dorno, Gockel, ) compared with theoretical values (secondar}' scattering ac- cording to Ahlgrimm). r z o I- < a. < 0° 20° 40° SUN'S ELEVATION Fig. 2.—Polarization at zenith for different sun's elevations /«.,. Theoretical values (I—Raj-Ieigh's theory of primary scat- tering, II—secondary scattering according to Ahlgrimm) com- pared with observed values (Tic
. Compendium of meteorology. Meteorology. SUN'S ELEVATION Fig. 1.—Polarization at the point of maximum polarization (in the sun's vertical, 90° from the sun) for different sun's elevations Observed values (Dorno, Gockel, ) compared with theoretical values (secondar}' scattering ac- cording to Ahlgrimm). r z o I- < a. < 0° 20° 40° SUN'S ELEVATION Fig. 2.—Polarization at zenith for different sun's elevations /«.,. Theoretical values (I—Raj-Ieigh's theory of primary scat- tering, II—secondary scattering according to Ahlgrimm) com- pared with observed values (Tichanowski, Gockel, Jensen, Dorno). to\Aards the horizon. The variation of the polari- zation at the zenith has thus the same character as that of maximum polarization, but with a much larger range of variation, as may be seen in Fig. 2. The meas- urement of polarization at the zenith, extended for negative sun's elevations /u-, gives an interesting residt: the maximum polarization at the zenith is reached for. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original American Meteorological Society. Committee on the Compendium of Meteorology; Malone, Thomas F. Boston : American Meteorological Society
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