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O2 absorption cross sections /187-225 nm/ from stratospheric solar flux measurementsThe absorption cross sections of molecular oxygen are calculated in the wavelength range from 187 to 230 nm from solar flux measurements obtained within the stratosphere. Within the Herzberg continuum wavelength region the molecular oxygen cross sections are found to be about 30% smaller than the laboratory results of Shardanand and Rao (1977) from 200 to 210 nm and about 50% smaller than those of Hasson and Nicholls (1971). At wavelengths longer than 210 nm the cross sections agree with those of Shardanand and Rao. The effective absorption cross sections of O2 in the Schumann-Runge band region from 187 to 200 nm are calculated and compared to the empirical fit given by Allen and Frederick (1982). The calculated cross sections indicate that the transmissivity of the atmosphere may be underestimated by the use of the Allen and Frederic cross sections between 195 and 200 nm. The ozone column content between 30 and 40 km and the relative ozone cross sections are determined from the same solar flux data set.
Document ID
19820064457
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Herman, J. R.
(NASA Goddard Space Flight Center Greenbelt, MD, United States)
Mentall, J. E.
(NASA Goddard Space Flight Center Laboratory for Planetary Atmospheres, Greenbelt, MD, United States)
Date Acquired
August 10, 2013
Publication Date
October 20, 1982
Publication Information
Publication: Journal of Geophysical Research
Volume: 87
Subject Category
Geophysics
Accession Number
82A47992
Distribution Limits
Public
Copyright
Other

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