ISOTOPIC EXCHANGE BETWEEN CARBON-DIOXIDE AND OZONE VIA O(1D) IN THE STRATOSPHERE

被引:109
作者
YUNG, YL
DEMORE, WB
PINTO, JP
机构
[1] CALTECH,JET PROP LAB,PASADENA,CA 91109
[2] US EPA,AREAL,RES TRIANGLE PK,NC 27711
关键词
D O I
10.1029/90GL02478
中图分类号
P [天文学、地球科学];
学科分类号
07 ;
摘要
We propose a novel mechanism for isotopic exchange between CO2 and O3 via O(1D) + CO2 --> CO3* followed by CO3* --> CO2 + O(3P). A one-dimensional model calculation shows that this mechanism can account for the enrichment in O-18 in the stratospheric CO2 observed by Gamo et al. [1981]. The implications of this mechanism for other stratospheric species and as a source of isotopically heavy CO2 in the troposphere are briefly discussed.
引用
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页码:13 / 16
页数:4
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