The MPI-Mainz UV/VIS Spectral Atlas

of Gaseous Molecules of Atmospheric Interest

www.uv-vis-spectral-atlas-mainz.org

Hannelore Keller-Rudek1, Geert K. Moortgat2, Rolf Sander2, Rüdiger Sörensen1

1Satellite Group

2Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany

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When referring to the Spectral Atlas, please cite our publication:

Keller-Rudek, H., Moortgat, G. K., Sander, R., and Sörensen, R.: The MPI-Mainz UV/VIS spectral atlas of gaseous molecules of atmospheric interest, Earth Syst. Sci. Data, 5, 365–373, (2013), DOI: 10.5194/essd-5-365-2013

Cross Sections / Alkanes+alkyl radicals / Alkanes / CH4 / OBrienCao(2002)_77K_848.6-920.5nm

DATAFILE: CH4_OBrienCao(2002)_77K_848.6-920.5nm.txt
NAME: methane
FORMULA: CH4
AUTHOR(YEAR): OBrienCao(2002)
T: 77K
λ: 848.6-920.5nm
BIBLIOGRAPHY: J.J. O'Brien and H. Cao, "Absorption spectra and absorption coefficients for methane in the 750-940 nm region obtained by intracavity laser spectroscopy", J. Quant. Spectrosc. Radiat. Transfer 75, 323-350 (2002); DOI: 10.1016/S0022-4073(02)00015-8
COMMENTS: High-resolution absorption measurements in the VIS/near-IR region (750-940 nm) at room temperature and 77 K using intracavity laser spectroscopy

The data for 77 K and 848-920 nm are from Table 2: Absorption coefficients in units of km-1 amagat-1 (base) have been converted to absorption cross sections (conversion factor 3.72 × 10-25)

Spectra for CH4 at 296 K for the 790-, 840-, 861-, 889-nm bands and for the 740-940 nm region are shown in Figs. 6-10

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