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Air-broadening and shift parameters of methane transitions in 6000–6100 cm-1 spectral region
Author(s): Tatiana M. Petrova; Alexandr M. Solodov; Alexandr A. Solodov; Vladimir M. Deichuli; Tatiana Yu. Chesnokova; Alina L. Baisel
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Paper Abstract

Air pressure induced broadening and shift coefficients for methane absorption lines in the 6000–6100 cm–1 region have been measured. The spectra were recorded using Bruker IFS 125 HR spectrometer at room temperature, at the spectral resolution of 0.01 and 0.007 cm–1 and in a wide pressure range of air. The multispectrum fittings with the quadratic speed dependent Voigt profile were performed to retrieve the broadening parameters for CH4 spectral lines. The atmospheric transmission of CH4 calculated by line-by-line method with use of absorption lines parameters from different spectroscopic databases and data obtained in this work was compared.

Paper Details

Date Published: 18 December 2019
PDF: 4 pages
Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112080O (18 December 2019); doi: 10.1117/12.2541311
Show Author Affiliations
Tatiana M. Petrova, V. E. Zuev Institute of Atmospheric Optics (Russian Federation)
Alexandr M. Solodov, V. E. Zuev Institute of Atmospheric Optics (Russian Federation)
Alexandr A. Solodov, V. E. Zuev Institute of Atmospheric Optics (Russian Federation)
Vladimir M. Deichuli, V. E. Zuev Institute of Atmospheric Optics (Russian Federation)
National Research Tomsk State Univ. (Russian Federation)
Tatiana Yu. Chesnokova, V. E. Zuev Institute of Atmospheric Optics (Russian Federation)
Alina L. Baisel, National Research Tomsk State Univ. (Russian Federation)


Published in SPIE Proceedings Vol. 11208:
25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics
Oleg A. Romanovskii; Gennadii G. Matvienko, Editor(s)

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