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Global distribution and southern hemispheric trends of atmospheric CCl3F

Naturevolume 302pages692695 (1983) | Download Citation

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Abstract

The spatial and temporal variability of the tropospherically inert tracer, trichlorofluoromethane (CCl3F), 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 network1,2, from the Pacific north-west (PNW) USA and South Pole3, and from the CSIRO southern hemispheric stations at Cape Grim, Tasmania, and Mawson, Antarctica4,5. The resulting global CCl3F distribution is shown in Fig. 1. A current CCl3F atmospheric lifetime of 75 yr is obtained. The observations suggest that small, residual errors may exist in the CCl3F release data.

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Author notes

    • P. J. Fraser

    Present address: Cooperative Institute for Research in Environmental Sciences, University of Colorado/NOAA, Boulder, Colorado, 80303, USA

Affiliations

  1. CSIRO Division of Atmospheric Physics, Aspendale, Victoria, Australia, 3195

    • P. J. Fraser
    • , P. Hyson
    • , I. G. Enting
    •  & G. I. Pearman

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https://doi.org/10.1038/302692a0

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