Physics
Scientific paper
Aug 1997
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1997georl..24.2003d&link_type=abstract
Geophysical Research Letters, Volume 24, Issue 16, p. 2003-2006
Physics
4
Atmospheric Composition And Structure: General Or Miscellaneous
Scientific paper
The altitude distribution of the isotopic ratio between HD16O and H216O in the stratosphere is derived by retrieving the mixing ratio profiles (from 20 km to 38 km of altitude) of the two isotopic species from far-infrared emission spectra. The measurements were made with a balloon-borne Fourier Transform Spectrometer capable of 0.0025cm-1 spectral resolution during the IBEX 92 campaign. The retrievals were carried out using the global-fit procedure on a statistically significant number of spectra for each isotope, in the 40-75cm-1 spectral region. This measurement determines the D/H ratio in stratospheric water over an altitude range larger than that of previous measurements. The value of the HD16O/H216O ratio, normalized to the standard value, ranges from 0.4 to 0.5 (with a 10% random error) in the altitude range studied and is in good agreement with the values previously measured.
Ade Peter A. R.
Carli Bruno
Carlotti Massimo
Lepri Gianmarco
Maria Dinelli Bianca
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