Physics
Scientific paper
Apr 1990
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1990jgr....95.5577r&link_type=abstract
Journal of Geophysical Research (ISSN 0148-0227), vol. 95, April 20, 1990, p. 5577-5585.
Physics
21
Infrared Spectroscopy, Solar Spectra, Stratosphere, Sulfur Fluorides, Trace Contaminants, Troposphere, Absorption Spectra, Atmospheric Composition, High Resolution, Line Spectra, Mixing Height
Scientific paper
This paper reports the detection and identification of the unresolved SF6 nu-3 band Q branch at 947.9/cm in high-resolution solar occultation spectra of the lower stratosphere and upper troposphere, which was made from the analysis of data recorded on April 30 to May 1, 1985 by the spaceborne Atmospheric Trace Molecule Spectroscopy Fourier transform spectrometer as part of the Spacelab 3 mission. On the basis of SF6 line-by-line parameters obtained from the laboratory studies of Bobin et al. (1987) and Schatz and Hornig (1953), the measured absorption was analyzed to deduce SF6 volume mixing ratios in the altitude range 12-22 km. It was found that, in this altitude range, the SF6 volume mixing ratio is independent of altitude, with an average measured value of 1.42 parts per trillion by volume (pptv) at 31 deg N latitude.
Brown Raymon L.
Farmer Crofton B.
Rinsland Curtis P.
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