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IDENTIFICATION OF $^{17}O^{16}O^{16}O$ AND $^{16}O^{17}O^{16}O$ LINE IN INFRARED STRATOSPHERIC SOLAR ABSORPTION SPECTRA,

Please use this identifier to cite or link to this item: http://hdl.handle.net/1811/12927

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Title: IDENTIFICATION OF $^{17}O^{16}O^{16}O$ AND $^{16}O^{17}O^{16}O$ LINE IN INFRARED STRATOSPHERIC SOLAR ABSORPTION SPECTRA,
Creators: Rinsland, C. P.; Goldman, A.; Smith, M. A. H.; Perrin, A.; Heyard, M.; Flaud, J.- M.; Camy-Peyret, C.; Devi, V. Malathy; Murcray, F. J.; Murcray, D. G.
Issue Date: 1992
Abstract: The 40\% enrichment in mid-stratospheric mass 50 ($^{16}O^{16}O^{18}O + ^{16}O^{18}O^{16}O$) heavy ozone measured in situ with a mass spectrometer by $Mauoresberger^{1}$ has motivated a large number of laboratory and theoretical investigations as well as additional stratospheric measurement. The stratospheric measurements have confirmed the $^{50}O_{3}$enrichment, varies in magnitude from about 10 to 45\% At the present time, the mechanism producing these $O_{3}$ isotopic enrichments in not understood. In two previous studies, we reported the identification and quantitative analysis of $^{18}O^{16}O^{16}O$ and $^{16}O^{18}O^{16}O$ lines in high-resolution infrared ground-based and stratospheric solar absorption $spectra ^{2,3}$. This work used the extensive set of ozone spectroscopic parameters summarized by Flaud $et al.^{4}$ Based on these results and the spectroscopic parameters for the $v_{3}$ and $v_{1}$ bands of $^{16}O^{17}O^{16}O$ and $^{17}O^{16}O^{16}O$ (presented in the accompanying $paper^{5}$), we have searched for absorption features of these rare isotopes in $0.003-cm^{-1}$ resolution stratospheric solar spectra. A number of lines of the $v_{3}$ bands of $^{16}O^{17}O^{16}O$ and $^{17}O^{16}O^{16}O$ have been identified in the solar spectra. This is the first time that these individual isotopic species have been measured in the Earth’s atmosphere. A quantitative analysis to determine $^{16}O^{17}O^{16}O/O_{3}$ and $^{17}O^{16}O^{16}O/3$ isotopic ratios is in progress.
URI: http://hdl.handle.net/1811/12927
Other Identifiers: 1992-WE-08
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