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

Technical Report · Tue Jan 01 04:00:00 EST 1991

OSTI ID:5480459

Yung, Y L; DeMore, W B; Pinto, J P

The authors propose a novel mechanism for isotopic exchange between CO{sub 2} and O{sub 3} via O ((1)D) + CO{sub 2} {minus}> CO{sub 3} followed by CO{sub 3} {minus}> CO{sub 2} + O((3)P). A one-dimensional model calculation shows that the mechanism can account for the enrichment in 18O in the stratospheric CO{sub 23} observed by Gamo et al. (1989), using the heavy O3 profile observed by Mauersberger (1981). The implication of the mechanism for other stratospheric species and as a source of isotopically heavy CO{sub 2} in the troposphere are briefly discussed.

• Research Organization: California Inst. of Tech., Pasadena, CA (United States)
• OSTI ID: 5480459
• Report Number(s): PB-91-183384/XAB; CONTRIB--4889; CNN: EPA-R-816418; EPA-9D4-25-NALX
• Country of Publication: United States
• Language: English

Related Subjects

54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION
ATMOSPHERIC CHEMISTRY
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
CHEMISTRY
EARTH ATMOSPHERE
ISOTOPIC EXCHANGE
MATHEMATICAL MODELS
OXIDES
OXYGEN COMPOUNDS
OZONE
PHOTOCHEMICAL REACTIONS
POLLUTION
STRATOSPHERE
TROPOSPHERE