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File:AYool CFC-11 history.png

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Summary[edit]

Description
English: Time series of atmospheric concentrations of CFC-11 from 1931 to 2003. Mixing ratio concentrations are shown for the northern and southern hemispheres, and are expressed as parts per trillion. The dotted line at 1989 incidates the time at which the Montreal Protocol on Substances That Deplete the Ozone Layer came into force. The data are plotted here using MATLAB.

The published source of data for the figure is:

Walker, S. J., R. F. Weiss & P. K. Salameh (2000) Reconstructed histories of the annual mean atmospheric mole fractions for the halocarbons CFC-11, CFC-12, CFC-113 and carbon tetrachloride. Journal of Geophysical Research 105, 14285—14296.

The data (including error estimates and updates) are available online from the atmospheric halocarbon page at University of California, San Diego.
Date
Source English Wikipedia
Author Plumbago

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Date/TimeThumbnailDimensionsUserComment
current17:53, 31 January 2008Thumbnail for version as of 17:53, 31 January 20081,700 × 1,429 (81 KB)RedAndr== Summary == Time series of atmospheric concentrations of CFC-11 from 1931 to 2003. Mixing ratio concentrations are shown for the northern and southern hemispheres, and are expressed
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File change date and time 11:17, 22 March 2007
Horizontal resolution 118.11 dpc
Vertical resolution 118.11 dpc
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