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

Journal Article · Tue Jan 01 04:00:00 EST 1991 · Geophysical Research Letters (American Geophysical Union); (USA)

DOI:https://doi.org/10.1029/90GL02478· OSTI ID:5480177

Yung, Yuk L ^[1]; DeMore, W B ^[2]; Pinto, J P ^[3]

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1. California Inst. of Tech., Pasadena (USA)
2. Jet Propulsion Laboratory, Pasadena, CA (USA)
3. Environmental Protection Agency, Research Triangle Park, NC (USA)

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

• OSTI ID: 5480177
• Journal Information: Geophysical Research Letters (American Geophysical Union); (USA), Journal Name: Geophysical Research Letters (American Geophysical Union); (USA) Vol. 18:1; ISSN 0094-8276; ISSN GPRLA
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ATMOSPHERIC CHEMISTRY
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
EARTH ATMOSPHERE
ENRICHMENT
EVEN-EVEN NUCLEI
ISOTOPE SEPARATION
ISOTOPES
ISOTOPIC EXCHANGE
LIGHT NUCLEI
NUCLEI
ONE-DIMENSIONAL CALCULATIONS
OXIDES
OXYGEN 18
OXYGEN COMPOUNDS
OXYGEN ISOTOPES
OZONE
SEPARATION PROCESSES
STABLE ISOTOPES
STRATOSPHERE
TROPOSPHERE