Ozone isotopologue measurements from the Atmospheric Chemistry Experiment (ACE)

•Global isotopologue fractionations of ozone measured by the ACE satellite mission.•A high-resolution Fourier transform spectrometer is used in solar occultation method.•Heavy isotopologues are enriched in tropical stratosphere and in the upper stratosphere of the Antarctic polar vortex. Near global...

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Bibliographic Details
Published in:Journal of quantitative spectroscopy & radiative transfer 2019-11, Vol.238, p.106547, Article 106547
Main Authors: Fernando, Anton M., Bernath, Peter F., Boone, Christopher D.
Format: Article
Language:English
Subjects:
Fourier transform spectroscopy
Ozone isotopologues
Satellite remote sensing
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Summary:•Global isotopologue fractionations of ozone measured by the ACE satellite mission.•A high-resolution Fourier transform spectrometer is used in solar occultation method.•Heavy isotopologues are enriched in tropical stratosphere and in the upper stratosphere of the Antarctic polar vortex. Near global ozone isotopologue distributions have been determined from infrared solar occultation measurements of the Atmospheric Chemistry Experiment (ACE) satellite mission. ACE measurements are made with a high resolution Fourier transform spectrometer. Annual and seasonal latitudinal fractionation (δ value) distributions of the ozone isotopologues 16O16O18O, 16O18O16O and 16O17O16O were obtained. Asymmetric ozone (16O16O18O) shows higher fractionation compared to symmetric ozone (16O18O16O). The maximum ozone fractionation occurs in the tropical stratosphere as expected from the contribution of photolysis to the enrichment of heavy isotopologues. An enhancement of the heavy ozone isotopologues is also seen in the upper stratosphere of the Antarctic polar vortex.
ISSN:0022-4073
1879-1352
DOI:10.1016/j.jqsrt.2019.06.026