Image:Carbon14-sunspot.svg

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Carbon14-sunspot.svg‎ (SVG file, nominally 1052 × 600 pixels, file size: 334 KB)

[edit] Summary

Correlations between ¹⁴C and sunspot activity. There is a roughly 60 year delay between changes in sunspot activity and ¹⁴C; in this chart the time scale for ¹⁴C has been separated (labelled at the top of the chart) and offset by 60 years. Note that the ¹⁴C record since 1950 has been distorted by nuclear testing. Sunspot data in red is reconstructed from group sunspot numbers.

Template:Vertical alignment for 14C is correct in my editor, corrections for Wikipedia rendering are welcome

[edit] Licensing

This figure was produced by Leland McInnes using gnuplot and Inkscape and is licensed under the GFDL. All data is from publicly available sources.

I, the creator of this work, hereby grant the permission to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.2 or any later version published by the Free Software Foundation; with no Invariant Sections, no Front-Cover Texts, and no Back-Cover Texts. Subject to disclaimers.

[edit] Data Sources

(gray) Carbon 14 data: http://www.radiocarbon.org/IntCal04%20files/intcal04.14c
(blue) Sunspot data: http://sidc.oma.be/DATA/monthssn.dat
(red) Reconstructed Sunspot Data: ftp://ftp.ngdc.noaa.gov/STP/SOLAR_DATA/SUNSPOT_NUMBERS/GROUP_SUNSPOT_NUMBERS/monthrg.dat

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	22:57, 21 November 2006	1,052×600 (334 KB)	Leland McInnes (Talk \| contribs)	(Correlations between <sup>14</sup>C and sunspot activity. There is a roughly 60 year delay between changes in sunspot activity and <sup>14</sup>C; in this chart the time scale for <sup>14</sup>C has been separated (labelled at the top of the chart) and of)