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18 December 2019 Air-broadening and shift parameters of methane transitions in 6000–6100 cm-1 spectral region
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Proceedings Volume 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics; 112080O (2019) https://doi.org/10.1117/12.2541311
Event: XXV International Symposium, Atmospheric and Ocean Optics, Atmospheric Physics, 2019, Novosibirsk, Russian Federation
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.
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Tatiana M. Petrova, Alexandr M. Solodov, Alexandr A. Solodov, Vladimir M. Deichuli, Tatiana Yu. Chesnokova, and Alina L. Baisel "Air-broadening and shift parameters of methane transitions in 6000–6100 cm-1 spectral region", Proc. SPIE 11208, 25th International Symposium on Atmospheric and Ocean Optics: Atmospheric Physics, 112080O (18 December 2019); https://doi.org/10.1117/12.2541311
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