Image:Hallstadtzeit-cycles.png

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[edit] Description

This chart represents the results of detrending historical delta ¹⁴C data by removing long term secular variation. Raw data is depicted in paler blue, while the dark blue represents a weighted smoothing. In theory this results in the depiction of the 2,000 year Hallstadtzeit cycles.

[edit] Copyright

This figure was produced by Leland McInnes using gnuplot 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

(pale blue) Residual delta ¹⁴C data: http://depts.washington.edu/qil/datasets/intcal98_14c.txt with post processing to remove long term secular variation.

[edit] Related Images

Original raw ¹⁴C calibration data (unprocessed).

File history

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	Date/Time	Dimensions	User	Comment
current	01:04, 7 February 2006	1,250×875 (129 KB)	Leland McInnes (Talk \| contribs)	(This chart represents the results of ''detrending'' historical delta <sup>14</sup>C data by removing long term secular variation. Raw data is depicted in paler blue, while the dark blue represents a weighted smoothing. In theory this results in the depict)