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Impact of rotational Raman scattering in the O 2 A band
Author(s) -
Sioris Christopher E.,
Evans Wayne F. J.
Publication year - 2000
Publication title -
geophysical research letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.007
H-Index - 273
eISSN - 1944-8007
pISSN - 0094-8276
DOI - 10.1029/2000gl012231
Subject(s) - zenith , radiance , nadir , radiative transfer , scattering , raman scattering , solar zenith angle , optics , x ray raman scattering , computational physics , diffuse sky radiation , atmospheric radiative transfer codes , physics , satellite , spectral resolution , raman spectroscopy , materials science , spectral line , astronomy
Radiative transfer calculations with scattering and absorption by aerosols and molecules are used to estimate the magnitude of the Ring effect in the O 2 A band. Rotational Raman scattering significantly alters the A band line depths and shapes for a satellite nadir‐viewing case at high solar zenith angles in the absence of thick clouds. In the limb view, at low spectral resolution, the only impact of rotational Raman scattering is that it significantly reduces the radiance in the shoulder of the R branch. The latter effect is also observed for zenith viewing geometry from the ground.