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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 l'Adour, France (44 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/molecule/sq cm independent of temperature, the retrieved N2O5 volume mixing ratios in ppbv, 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 1-sigma uncertainty including the error in the total band intensity. The retrieved profiles are compared with previous measurements and photochemical model results.
Document ID
Document Type
Reprint (Version printed in journal)
External Source(s)
Camy-Peyret, C. (NASA Langley Research Center Hampton, VA, United States)
Flaud, J.-M. (NASA Langley Research Center Hampton, VA, United States)
Perrin, A. (CNRS Lab. de Physique Moleculaire et Applications, Paris, France)
Rinsland, C. P. (NASA Langley Research Center Hampton, VA, United States)
Goldman, A. (NASA Langley Research Center Hampton, VA, United States)
Murcray, F. J. (Denver Univ. CO, United States)
Date Acquired
August 16, 2013
Publication Date
January 1, 1993
Publication Information
Publication: Journal of Atmospheric Chemistry
Volume: 16
Issue: 1
ISSN: 0167-7764
Subject Category
Distribution Limits