Isotopic exchange between carbon dioxide and ozone via O( 1 D) in the stratosphere | Zendy

Yung Yuk L. | Zendy; DeMore W. B. | Zendy; Pinto Joseph P. | Zendy

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Isotopic exchange between carbon dioxide and ozone via O( 1 D) in the stratosphere

Author(s) -

Yung Yuk L.,

DeMore W. B.,

Pinto Joseph P.

Publication year - 1991

Publication title -

geophysical research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 2.007

H-Index - 273

eISSN - 1944-8007

pISSN - 0094-8276

DOI - 10.1029/90gl02478

Subject(s) - stratosphere , ozone , troposphere , atmospheric sciences , carbon dioxide , ozone layer , environmental science , isotope , carbon fibers , δ18o , atmosphere (unit) , environmental chemistry , chemistry , stable isotope ratio , meteorology , physics , materials science , nuclear physics , organic chemistry , composite number , composite material

We propose a novel mechanism for isotopic exchange between CO 2 and O 3 via O( 1 D) + CO 2 → CO 3 * followed by CO 3 * → CO 2 + O( 3 P). A one‐dimensional model calculation shows that this mechanism can account for the enrichment in 18 O in the stratospheric CO 2 observed by Gamo et al. [1989], using the heavy O 3 profile observed by Mauersberger [1981]. The implications of this mechanism for other stratospheric species and as a source of isotopically heavy CO 2 in the troposphere are briefly discussed.

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