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Constraints on Atmospheric CO2 from other Trace Species

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If you have a question about this talk, please contact Dr Francis Pope .

Joint analysis of atmospheric measurements of CO2 with those of trace species with common sources and sinks enables improved quantification of common governing processes and the associated carbon fluxes. In this talk I will discuss these constraints, focusing, in particular, on reduced carbon species (e.g., CO) and on carbonyl sulphide (COS). The methodology involves interpretation of the observed signatures using a 3-D atmospheric chemistry transport model.

Specific examples discussed will include :(a) the use of CO:CO2 correlations to distinguish regional combustion and biospheric carbon fluxes, and (b) the influence of reduced carbon oxidation on the tropospheric CO2 distribution, and its role in inverse estimates of carbon fluxes.

This talk is part of the Centre for Atmospheric Science seminars, Chemistry Dept. series.

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