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dc.creatorRinsland, C. P.en_US
dc.creatorDevi, V. Malathyen_US
dc.creatorFlaud, J.- M.en_US
dc.creatorCamy-Peyret, C.en_US
dc.creatorSmith, M. A. H.en_US
dc.creatorStokes, G. M.en_US
dc.date.accessioned2006-06-15T14:56:12Z
dc.date.available2006-06-15T14:56:12Z
dc.date.issued1985en_US
dc.identifier1985-TA-2en_US
dc.identifier.urihttp://hdl.handle.net/1811/12206
dc.description$^{1}$R. J. Cicerone and J. L. McCrumb, Geophys. Res. Lett. 7 251 (1980). $^{2}$K. Mauersberger, Geophys. Res. Lett. 8, 935 (1981). $^ 3$J. A. Kaye and D. F. Strobel, J. Geophys. Res. 88, 8447 (1983). $^ 4$A. J. Blake, S. T. Gibson, and D. G. McCoy, J. Geophys. Res. 89, 7277 (1984). $^ 5$J. M. Flaud et al., preceding abstract.en_US
dc.descriptionAuthor Institution: NASA Langley Research Center; Physics Department, College of William \& Mary; Laboratoire de Physique Mol\'{e}culaire et d'Optique Atmosph\'{e}rique, CNRS, B\^{a}t. 221, College of William \& Mary; Laboratoire de Physique Mol\'{e}culaire et d'Optique Atmosph\'{e}rique, CNRS, B\^{a}t. 221, College of William \& Mary; Laboratoire de Physique Mol\'{e}culaire et d'Optique Atmosph\'{e}rique, CNRS, B\^{a}t. 221, NASA Langley Research Center; Battelle Observatory, Battelle Pacific Northwest Laboratoriesen_US
dc.description.abstractThere has been some controversy concerning the isotopic composition of ozone in the upper stratosphere. Calculations have been reported which indicate that above 40 km, the photodissociation rate of $^{16}0^{18}$ should be considerably larger than for $^{16}0^{16}0$. As a consequence, an enrichment in $^{16}0^{18}0^{16}$ and $^{16}0^{16}0^{18}$ might occur. Although nighttime mass spectroscopic measurements show a peak heavy ozone enhancement of over 40%, $^{2}$ recent calculations indicate that exchange $reactions^{3}$ and a lower $^{16}0^{18}0$ photodissociation $rate^{4}$ should prevent any enhancement. To attempt to resolve the discrepancies among these results, we recorded $0.005 cm^{-1}$ resolution laboratory spectra of pure $^{16}0_{3}$, natural ozone, and $^{18}$O-enriched ozone with the McMath interferometer on Kitt Peak. The data cover $600-1300 cm^{-1}$ Based on the spectroscopic parameters derived from the analysis of these laboratory $spectra,^{5}$ a number of relatively well isolated lines of the $\nu_{3}$ bands of $^{16}0^{18}0^{16}0$ and $^{16}0^{16}0^{18}0$ have been identified in solar absorption spectra recorded with the same interferometer. The analysis of the solar absorption spectra shows a marginally statistically significant enhancement in heavy ozone. Relative to the concentrations in a natural sample of ozone, isotopic abundances of 1.05 $\pm$ 0.07 and 1.11 $\pm$ 0.11 in the total column of atomospheric ozone are derived for $^{16}0^{18}0^{16}0$ and $^{16}0^{16}0^{18}$, respectively. A more sensitive test for heavy ozone enhancement in the upper stratosphere should be possible from high-resolution measurements of the same lines with balloon-borne and satellite-borne instruments.en_US
dc.format.extent182430 bytes
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dc.language.isoEnglishen_US
dc.publisherOhio State Universityen_US
dc.titleIDENTIFICATION OF $^{18}$O-ISOTOPIC LINES OF OZONE IN INFRARED GROUND-BASED SOLAR ABSORPTION SPECTRAen_US
dc.typearticleen_US


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