Atmospheric and Oceanic Optics

, Volume 30, Issue 2, pp 123–128 | Cite as

Parameters of broadening of water molecule absorption lines by argon derived using different line profile models

  • T. M. Petrova
  • A. M. Solodov
  • A. P. Shcherbakov
  • V. M. Deichuli
  • A. A. Solodov
  • Yu. N. Ponomarev
  • T. Yu. Chesnokova
Spectroscopy of Ambient Medium

Abstract

The water vapor absorption spectrum was measured in the spectral region 6700–7650 cm–1 with argon as a buffer gas. The room-temperature spectrum was measured using a Bruker IFS 125-HR Fourier Transform Spectrometer with high signal-to-noise ratio, with a spectral resolution of 0.01 cm–1, at argon pressures from 0 to 0.9 atm. The H2O absorption spectral line parameters are derived by fitting two line shape profiles (Voigt and speed-dependent Voigt) to the experimental spectrum. It is shown that the use of speed-dependent Voigt profile provides the best agreement with experimental data.

Keywords

absorption line parameters water molecule Fourier transform spectrometer speed-dependent Voigt profile 

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Copyright information

© Pleiades Publishing, Ltd. 2017

Authors and Affiliations

  • T. M. Petrova
    • 1
  • A. M. Solodov
    • 1
  • A. P. Shcherbakov
    • 1
  • V. M. Deichuli
    • 1
    • 2
  • A. A. Solodov
    • 1
  • Yu. N. Ponomarev
    • 1
  • T. Yu. Chesnokova
    • 1
  1. 1.V.E. Zuev Institute of Atmospheric Optics, Siberian BranchRussian Academy of ScienceTomskRussia
  2. 2.Tomsk State UniversityTomskRussia

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