AbstractRayleigh optical depth is an integral part of many radiative transfer problems. This paper discusses different elements and approaches of its determination. Then, it presents a method, which ensures more realistic estimate of Rayleigh optical depth by using refractive index and depolarization factor (including rotational Raman lines) adjusted according to the state and composition of the atmosphere. It is based on the published experimental and theoretical results. The Rayleigh optical depth calculations are compared with the Elterman’s model calculations for trend analysis purpose. Rayleigh optical depths are found to be around 3.4% lower than previous researchers, as they ignored the constraints of conservation of angular momentum in the rotational/vibrational transitions of the molecules during scattering.
On the different approaches of Rayleigh optical depth determination
Advances in Space Research ; 44 , 9 ; 1058-1066
2009-06-22
9 pages
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
On the different approaches of Rayleigh optical depth determination
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