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Stratospheric profiles of heavy water vapor isotopes and CH3D from analysis of the ATMOS Spacelab 3 infrared solar spectraThe isotopic composition of stratospheric water vapor and methane was investigated. Stratospheric profiles of HDO, (H-18)2O, (H-17)2O, and CH3D were derived from solar occultation spectra recorded on April 30 - May 1, 1985 by the Atmospheric Trace Molecule Spectroscopy Fourier transform spectrometer aboard Spacelab 3. The profiles of the three water-vapor isotopes showed an increase in the volume mixing ratio with altitude. The measured profiles of D/H in water vapor showed a large depletion in the lower stratosphere (about 63 percent relative to standard mean ocean water, SMOW, at 20 km) and a small increase in D/H with altitude at higher altitudes, up to 34 km. The D/H ratio in stratospheric methane was close to the corresponding isotopic ratio in SMOW.
Document ID
19910038939
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
Authors
Rinsland, C. P.
(NASA Langley Research Center Hampton, VA, United States)
Gunson, M. R.
(NASA Langley Research Center Hampton, VA, United States)
Foster, J. C.
(NASA Langley Research Center Hampton, VA, United States)
Toth, R. A.
(NASA Langley Research Center Hampton, VA, United States)
Farmer, C. B.
(JPL Pasadena, CA, United States)
Date Acquired
August 15, 2013
Publication Date
January 20, 1991
Publication Information
Publication: Journal of Geophysical Research
Volume: 96
ISSN: 0148-0227
Subject Category
Geophysics
Accession Number
91A23562
Distribution Limits
Public
Copyright
Other

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