Vol. 30, issue 12, article # 4

Serdyukov V. I., Sinitsa L. N., Bykov A. D., Shcherbakov A. P. Broadening and shift of the methane absorption lines in the 11000–11400 cm–1 region. // Optika Atmosfery i Okeana. 2017. V. 30. No. 12. P. 1023-1026. DOI: 10.15372/AOO20171204 [in Russian].
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Absorption spectra of methane in the 11000–11400 cm–1 region were recorded at a IFS–125M Fourier spectrometer at pressures from 11 to 100 mbar, room temperature, and spectral resolution of 0.03 cm–1. A multipass cell 60 cm long and 44 passes were used, which provided a total path length of 2640 cm and threshold sensitivity to absorption on an order of 10–8 cm–1. Voight contour parameters (line center, intensity, self-broadening and self-shift coefficients) were determined.


methane, Fourier spectrometer, absorption, line strength, halfwidth, line shift


  1. Sussmann R., Forster F., Rettinger M., Jones N. Strategy for high-accuracy-and-precision retrieval of atmospheric methane from the mid-infrared FTIR network // Atmos. Meas. Tech. 2011. V. 4. P. 1943–1064.
  2. Karkoschka E., Tomasko M.G. Methane absorption coefficients for the jovian planets from laboratory, Huygens, and HST data // Icarus. 2010. V. 205. P. 674–694.
  3. Voth G.A., Marcus R.A., Zewail A.H. The highly excited C-H stretching states of CHD3, CHT3, CH3D // J. Chem. Phys. 1984. V. 81. P. 5494–5507.
  4. Perry J.W., Moll D.J., Kuppermann A., Zewail A.H. High-energy overtone spectroscopy of some methanes // J. Chem. Phys. 1985. V. 82. P. 1195–1211.
  5. Soraas K., Lin Z., Reilly J.P. High resolution study of methane's 3n+ n3 vibrational overtone band // J. Chem. Phys. 1994. V. 100. P. 7916–7926.
  6. Margolis J.S., Fox K. Infrared absorption spectrum of CH4 at 9050 cm–1 // J. Chem. Phys. 1968. V. 49. P. 2451–2452.
  7. Fox K., Jennings D.E. Measurements of nitrogen-, hydrogen- and helium broadened widths of methane lines at 9030−9120 cm1 // J. Quant. Spectrosc. Radiat. Transfer. 1985. V. 33, N 3. P. 275–280.
  8. Fox K., Jennings D.E., Stern E.A., Hubbard R. Measurements of argon-, helium-, hydrogen-, and nitrogen-broadened widths of methane lines near 9000 cm1 // J. Quant. Spectrosc. Radiat. Transfer. 1988. V. 39, N 6. P. 473–476.
  9. Fox K., Jennings D.E. Spectral shifts of methane lines in collisions with hydrogen, helium, nitrogen and argon // J. Quant. Spectrosc. Radiat. Transfer. 1989. V. 42, N 3. P. 201–206.
  10. Singh K., O’Brien J.J. Measurement of pressure-broa-dening and lineshift coefficients at 77 and 296 K of methane lines in the 727 nm band using intracavity laser spectroscopy // J. Quant. Spectrosc. Radiat. Transfer. 1994. V. 52, N 1. P. 75–87.
  11. Keffer C.E., Conner C.P., Smith W.H. Pressure broadening of methane lines in the 6190 Å and 6825 Å bands at room and low temperatures // J. Quant. Spectrosc. Radiat. Transfer. 1986. V. 35, N 6. P. 495–499.
  12. Radak B.B., Lunine J.I., Hunten D.M., Atkinson G.H. The intensity and pressure broadening of the 681.884 nm methane absorption line at low temperatures determined by intracavity laser spectroscopy // J. Quant. Spectrosc. Radiat. Transfer. 1994. V. 52, N 6. P. 809–818.
  13. Cvijin P.V., Wells W.K., Mendas I., Delaney J.K., Lunine J.I., Hunten D.M., Atkinson G.H. Determination of the intensity and pressure broadening of the 619.68 nm methane overtone absorption line at low temperatures using intracavity laser spectroscopy // J. Quant. Spectrosc. Radiat. Transfer. 1993. V. 49, N 6. P. 639–650.
  14. Bykov A.D., Naumenko O.V., Pshenichnikov A.M., Sinitsa L.N., Shcherbakov A.P. An expert system for identification of lines in vibrational-rotational spectra // Opt. Spectrosc. 2003. V. 94. P. 528–537.
  15. Rothman L.S., Gordon I.E., Babikov Y., Barbe A., Benner D.C., Bernath P.F., Birk M., Bizzocchi L., Boudon V., Brown L.R., Campargue A., Chance K., Cohen E.A., Coudert L.H., Devi V.M., Drouin B.J., Fayt A., Flaud J.-M., Gamache R.R., Harrison J.J., Hartmann J.-M., Hill C., Hodges J.T., Jacquemart D., Jolly A., Lamouroux J., Le Roy R.J., Li G., Long D.A., Lyulin O.M., Mackie C.J., Massie S.T., Mikhailenko S., Müller H.S.P., Naumenko O.V., Nikitin A.V., Orphal J., Perevalov V., Perrin A., Polovtseva E.R., Richard C., Smith M.A.H., Starikova E., Sung K., Tashkun S., Tennyson J., Toon G.C., Tyuterev Vl.G., Wagner G. The HITRAN 2012 molecular spectroscopic database // J. Quant. Spectrosc. Radiat. Transfer. 2013. V. 130. P. 4–50.
  16. Boussin C., Regalia L., Plateaux J.-J., Barbenb A. Line intensities and self-broadening coefficients for methane lines between 5500 and 6180 cm–1. Retrieved with a multispectrum fitting technique // J. Mol. Spectrosc. 1998. V. 191. P. 381–383.