The MPI-Mainz UV/VIS Spectral Atlas

of Gaseous Molecules of Atmospheric Interest

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

1Satellite Group

2Atmospheric Chemistry Division

Max-Planck Institute for Chemistry
Mainz, Germany


Cross Sections

Quantum Yields


Contact, Imprint, Acknowledgements

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 / Organics (carbonyls) / Bicarbonyls / CH3COCOH / Staffelbach(1995)_248K_225-463nm

DATAFILE: CH3COCOH_Staffelbach(1995)_248K_225-463nm.txt
NAME: methylglyoxal, MGLY
AUTHOR(YEAR): Staffelbach(1995)
T: 248K
λ: 225-463nm
BIBLIOGRAPHY: T.A. Staffelbach, J.J. Orlando, G.S. Tyndall, and J.G. Calvert, "The UV-visible absorption spectrum and photolysis quantum yields of methylglyoxal", J. Geophys. Res. 100(D7), 14189-14198 (1995); DOI: 10.1029/95JD00541
COMMENTS: Absorption measurements at 248, 273, and 298 K and at a resolution of ∼0.6 nm using a diode array spectrometer

The absorption curves shown in Fig. 2 have been digitized

Note of the authors:
"Somewhat lower cross sections are noted at 248 K compared with those at 273 K and 298 K, but the change (about 5-10%) is not significant, given the uncertainty in the measurements. These lower cross sections at 248 K might be due to loss of a small fraction of the MGLY due to condensation at lower temperatures."

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