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Stratospheric N2O5, CH4, and N2O Profiles from IR Solar Occultation SpectraStratospheric volume mixing ratio profiles of N2O5, CH4, and N2O have been retrieved from a set of 0.052/ cm resolution (FWHM) solar occultation spectra recorded at sunrise during a balloon flight from Aire sur I'Adour, France (44 deg N latitude) on 12 October 1990. The N2O5 results have been derived from measurements of the integrated absorption by the 1246/ cm band. Assuming a total intensity of 4.32 x 10(exp 17)cm(exp -1) molecule sq cm(exp -2) independent of temperature, the retrieved N2O5 volume mixing ratios in ppbv (parts per billion by volume, 10(exp -9)), interpolated to 2 km height spacings, are 1.64 +/- 0.49 at 37.5 km, 1.92 +/- 0.56 at 35.5 km, 2.06 +/- 0.47 at 33.5 km, 1.95 +/- 0.42 at 31.5 km, 1.60 +/- 0.33 at 29.5 km, 1.26 +/- 0.28 at 27.5 km, and 0.85 +/- 0.20 at 25.5 km. Error bars indicate the estimated I-sigma uncertainty including the error in the total band intensity (+/- 20% has been assumed). The retrieved profiles are compared with previous measurements and photochemical model results.
Document ID
20000002897
Document Type
Reprint (Version printed in journal)
External Source(s)
Authors
Peyeret, C. Camy (Paris VI Univ. France)
Flaud, J.-M. (Paris VI Univ. France)
Perrin, A. (Paris VI Univ. France)
Rinsland, C. P. (NASA Langley Research Center Hampton, VA United States)
Goldman, A. (Denver Univ. Denver, CO United States)
Murcray, F. J. (Denver Univ. Denver, CO United States)
Date Acquired
August 19, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Journal of Atmospheric Chemistry
Volume: 16
Subject Category
Solar Physics
Funding Number(s)
CONTRACT_GRANT: NsG-1432
Distribution Limits
Public
Copyright
Other