The apparent light scattering coefficient, β(θ0), measured in fog by optical detection systems of finite acceptance angle θ0, generally has to be corrected in order to recover the true scattering coefficient, β. To this end 22 curves have been derived, from which the value of β can be correctly extrapolated, by grouping 81 curves of the ratio β(θ0)/β(1.0°) computed for droplet size spectra of valley, advection and radiation fogs, at a wavelength of λ = 0.6328 µm. Some examples show the procedure to be effective in practice.
A method for recovering the true scattering coefficient from the apparent one measured in fog
CORRADINI, Corrado;
1980
Abstract
The apparent light scattering coefficient, β(θ0), measured in fog by optical detection systems of finite acceptance angle θ0, generally has to be corrected in order to recover the true scattering coefficient, β. To this end 22 curves have been derived, from which the value of β can be correctly extrapolated, by grouping 81 curves of the ratio β(θ0)/β(1.0°) computed for droplet size spectra of valley, advection and radiation fogs, at a wavelength of λ = 0.6328 µm. Some examples show the procedure to be effective in practice.File in questo prodotto:
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