Physics
Scientific paper
Aug 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986georl..13..765p&link_type=abstract
Geophysical Research Letters (ISSN 0094-8276), vol. 13, Aug. 1986, p. 765-768.
Physics
24
Atmospheric Composition, Methyl Chloride, Stratosphere, Troposphere, Absorption Spectroscopy, Michelson Interferometers, Spaceborne Experiments, Spacelab Payloads, Stellar Occultation
Scientific paper
Absorptions due to the nu1 band of CH3Cl have been identified for the first time in infrared solar absorption spectra of the upper troposphere and lower stratosphere. The spectral data were obtained with the ATMOS Fourier transform spectrometer on board Spacelab 3 in May 1985 during four solar occultation events near latitudes of 30 deg N, 26 deg N, 25 deg N, and 49 deg S. Volume mixing ratio profiles of CH3Cl retrieved for the altitude range 12 to 23 km at these four latitudes do not show appreciable differences. Vertical mixing ratio distributions vary from 6 x 10 to the -10th at 12 km to 3 x 10 to the -10th at 23 km with an average uncertainty of about 25 percent. The retrieved mixing ratio does not decrease with altitude as rapidly as the data obtained by in situ techniques.
Farmer Crofton B.
Norton Heather R.
Park Jae-Heung
Raper O. F.
Rinsland Curtis P.
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