Vol. 32, issue 05, article # 3

Dеichuli V.M., Petrova T.M., Ponomarev Yu.N., Solodov A.M., Solodov A.A. Broadening and shift coefficients of water vapor absorption lines in 8650–9020 cm–1 spectral region. // Optika Atmosfery i Okeana. 2019. V. 32. No. 05. P. 358–364 [in Russian].
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Abstract:

The broadening and shift coefficients of H2O absorption lines are compared for Ar, He, H2, and N2 buffer gases. The broadening and shift coefficients were derived from the analysis of the absorption spectra recorded with a Fourier spectrometer in the spectral range 8650–9020 cm-1 with a spectral resolution of 0.01 cm–1. Using two models of line profiles (Voigt and speed-dependent Voigt profiles) the parameters of the H2O absorption lines were calculated. It is shown that the speed-dependent Voigt profile provides better agreement with experimental data.

Keywords:

broadening and shift coefficients, Fourier spectrometer, water vapor

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