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 / WilkinsonJohnston(1950)_303K_137.0-145.5nm(smoo)

DATAFILE: CH4_WilkinsonJohnston(1950)_303K_137.0-145.5nm(smoo).txt
NAME: methane
FORMULA: CH4
AUTHOR(YEAR): WilkinsonJohnston(1950)
T: 303K
λ: 137.0-145.5nm(smoo)
BIBLIOGRAPHY: P.G. Wilkinson and H.L. Johnston, "The absorption spectra of methane, carbon dioxide, water vapor, and ethylene in the vacuum ultraviolet", J. Chem. Phys. 18, 190-193 (1950); DOI: 10.1063/1.1747586
COMMENTS: Absorption measurements using vacuum fluorite spectrograph fitted with a hydrogen discharge tube as a light source

The smooth fit of the measured data points (absorption coefficients k (atm, 273 K)-1 cm-1 (base e)) plotted in Fig. 1 has been digitized and converted to absorption cross sections (conversion factor 3.72×10-20)

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