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 / Oxygen / O2 / Shardanand(1969)_298K_200-245nm

DATAFILE: O2_Shardanand(1969)_298K_200-245nm.txt
NAME: oxygen
FORMULA: O2
AUTHOR(YEAR): Shardanand(1969)
T: 298K
λ: 200-245nm
BIBLIOGRAPHY: Shardanand, "Absorption cross sections of O2 and O4 between 2000 and 2800 Å", Phys. Rev. 186, 5-9 (1969); DOI: 10.1103/PhysRev.186.5
COMMENTS: Medium-resolution (0.25 nm) absorption measurements using a 0.3-m Mc Pherson vacuum-ultraviolet-scanning grating monochromator, a hydrogen-discharge light source, and a photomultiplier tube as the detector

The listed data*) are the cross sections σ1 derived from the measured (pressure dependent) absorption cross sections σeff and using the relation
σeff(λ) = σ1(λ) + K σ2(λ) n(O2)
with K = equilibrium constant for O2 + O2 ↔ O4, n(O2) = number density of the gas

*) Data as quoted by

Shardanand and A.D. Prasad Rao, "Collision-induced absorption of O2 in the Herzberg continuum", J. Quant. Spectrosc. Radiat. Transfer 17, 433-439 (1977); DOI: 10.1016/0022-4073(77)90122-4

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