File:Hats f11 global.png

Hats_f11_global.png(695 × 405 pixels, file size: 42 KB, MIME type: image/png)


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Summary

Description
English: Graph shows the hemispheric and global mean concentrations of trichlorofluoromethane (Freon 11, CFC-11, R-11) in earth's atmosphere versus time. X-axis data interval is monthly. Y-axis concentration is parts per trillion.

The data represent a mean of combined data from the HATS (Halocarbon and Atmospheric Trace Species) programs; which include up to 15 sampling sites that are distributed over the northern and southern hemispheres. Most emissions originate at northern latitudes, and are mixed through the troposphere of both hemispheres after about 1-2 years.

Data sampling and analysis by:
Halocarbons and Other Atmospheric Trace Species Group / Global Monitoring Division / Earth Systems Research Laboratories / United States National Oceanic and Atmospheric Administration

https://www.esrl.noaa.gov/gmd/hats/
Source http://www.esrl.noaa.gov/gmd/hats/combined/CFC11.html
Author NOAA/ESRL HATS group

Licensing

Public domain
This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.

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Original upload log

The original description page was here. All following user names refer to en.wikipedia.
Date/Time Dimensions User Comment
2011-06-21 15:33 645×405× (40655 bytes) Goffog {{Information |Description = Hemispheric and Global mean concentrations of CFC-11 (NOAA/ESRL) |Source = NOAA/ESRL halocarbons group |Date = ~~~~~ |Author = |Permission = |other_versions = }}

Captions

Trichlorofluoromethane atmospheric concentration since 1977

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File history

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Date/TimeThumbnailDimensionsUserComment
current05:25, 19 November 2023Thumbnail for version as of 05:25, 19 November 2023695 × 405 (42 KB)Kai102430 August 2023 update from NOAA
11:09, 13 October 2020Thumbnail for version as of 11:09, 13 October 2020695 × 405 (42 KB)Bikesrcool14 September 2020 update from NOAA
08:20, 25 May 2015Thumbnail for version as of 08:20, 25 May 2015645 × 405 (40 KB)KopiersperreTransferred from en.wikipedia
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