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 / Nitrogen+compounds(N,H,O) / NH3 / Davidson(1989)_300-3000K_193nm(fit)

DATAFILE: NH3_Davidson(1989)_300-3000K_193nm(fit).txt
NAME: ammonia
AUTHOR(YEAR): Davidson(1989)
T: 300-3000K
λ: 193nm(fit)
BIBLIOGRAPHY: D.F. Davidson, A.Y. Chang, K. Kohse-Höinghaus, and R.K. Hanson, "High temperature absorption coefficients of O2, NH3, and H2O for broadband ArF excimer laser radiation", J. Quant. Spectrosc. Radiat. Transfer 42, 267-278 (1989); DOI: 10.1016/0022-4073(89)90073-3
COMMENTS: Absorption measurements for broadband ArF excimer radiation at 193 nm in shock-heated ammonia

Empirical fit for the absorption coefficient:

k193 nm = 230 × [1 - exp(-1370/T)] × (300/T)

converted to absorption cross sections using factor RT = 1.36×10-22 T; R (gas constant) in cm3 atm molecule-1 K-1

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