On the molecular scattering in the terrestrial atmosphere : An empirical formula for its calculation in the homosphere
Earth and related Environmental sciences
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A recent determination by D. R. Bates of the Rayleigh scattering cross section (σRS) for air from 0.2 to 1 μm leads to a simple empirical formula (λ in μm) σRS = 4.02 × 10-28 λ4+xcm2 where x = 0.389λ + 0.09426 λ - 0.3228 for the spectral region 0.2 μm < λ < 0.55 μm ; the accuracy is within ±0.5%. From the visible at 0.55 μm to the infrared (i.r.) at 1 μm, the same accuracy can be obtained using a constant value, x = 0.04. The formula accounts for the degree of depolarization which varies with the wavelength according to the latest determination by Bates.
CitationNicolet, M. (1984). On the molecular scattering in the terrestrial atmosphere : An empirical formula for its calculation in the homosphere. , Planetary and Space Science, Vol. 32, Issue 11, 1467-1468, DOI: 10.1016/0032-0633(84)90089-8.