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 / Organics (carbonyls) / Aldehydes(aliphatic) / CH2O / MellerMoortgat(2000)_298K_224.56-376.00nm(0.01nm)

DATAFILE: CH2O_MellerMoortgat(2000)_298K_224.56-376.00nm(0.01nm).txt
NAME: formaldehyde, methanal
FORMULA: CH2O
AUTHOR(YEAR): MellerMoortgat(2000)
T: 298K
λ: 224.56-376.00nm(0.01nm)
BIBLIOGRAPHY: R. Meller and G.K. Moortgat, "Temperature dependence of the absorption cross sections of formaldehyde between 223 and 323 K in the wavelength range 225-375 nm", J. Geophys. Res. 105(D6), 7089-7101 (2000); DOI: 10.1029/1999JD901074
COMMENTS: High-resolution spectrum: Spectral resolution in single measurements varied between 0.028 nm at 230 nm and 0.021 nm at 360 nm; in the final spectrum over the entire wavelength range the resolution is somewhat lower (∼0.04 nm) due to later data handling and manipulation

Empirical fit of the temperature dependence (223-323 K):

σ(λ, T) = σ(298 K) + Γ× (T - 298 K)

with the temperature coefficients Γ given in the datafile

CH2O_MellerMoortgat(2000)_223-323K_249.38-356.56nm(T-gradient)

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