Global distribution and southern hemispheric trends of atmospheric CCl3F

The spatial and temporal variability of the tropospherically inert tracer, trichlorofluoromethane (CCl 3 F), has been simulated using a global atmospheric transport model, incorporating an advective-diffusive transport scheme and known release and photolytic data. The observational data are taken fr...

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Bibliographic Details
Published in:Nature (London) 1983-04, Vol.302 (5910), p.692-695
Main Authors: Fraser, P. J., Hyson, P., Enting, I. G., Pearman, G. I.
Format: Article
Language:English
Subjects:
Humanities and Social Sciences
letter
multidisciplinary
Science
Science (multidisciplinary)
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Summary:The spatial and temporal variability of the tropospherically inert tracer, trichlorofluoromethane (CCl 3 F), has been simulated using a global atmospheric transport model, incorporating an advective-diffusive transport scheme and known release and photolytic data. The observational data are taken from the Geophysical Monitoring for Climatic Change (GMCC) global network 1,2 , from the Pacific north-west (PNW) USA and South Pole 3 , and from the CSIRO southern hemispheric stations at Cape Grim, Tasmania, and Mawson, Antarctica 4,5 . The resulting global CCl 3 F distribution is shown in Fig. 1. A current CCl 3 F atmospheric lifetime of 75 yr is obtained. The observations suggest that small, residual errors may exist in the CCl 3 F release data.
ISSN:0028-0836
1476-4687
DOI:10.1038/302692a0