Wind effect in H2O absorption lines perturbed by He, Ar, Kr, and Xe pressure
V.I. Starikov1, T.M. Petrova2, A.M. Solodov2, A.A. Solodov2, V.M. Deichuli2
1Tomsk State University of Control Systems and Radioelectronics, Tomsk, Russia
2V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, Tomsk, Russia
Keywords: line profile, wind effect, НО, He, Ar, Kr, Xe
Abstract
The influence of two factors on the contour of an absorption line of water vapor molecule in a mixture with helium, argon, krypton, and xenon is studied: the dependence of the broadening coefficients γ and shifting coefficient δ on the velocity νa of the absorbing H2O molecule (wind effect) and the change in the velocity of H2O upon collision with these atoms. Three absorption lines of H2O molecule from n1 + n2 + n3 band with different rotational quantum numbers of the initial quantum state were chosen for the study.
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