File:Climatic Cycles and Tree-Growth Plate 11.jpg
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English: Plate 11.
A. Periodogram of standard 5-year period. B. Periodogram of mixed periods. C. Periodogram of sunspot numbers, 1610-1910. D. Periodogram of Flagstaff 500-year record, to show cycles between 4 and 15 years of length. E. Periodogram of same continued to 25 years. |
| Date | |
| Source | Climatic Cycles and Tree-Growth |
| Author | Andrew Ellicott Douglass |
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| current | 17:49, 9 August 2012 | | 1,372 × 1,539 (234 KB) | Keith Edkins (talk | contribs) | == {{int:filedesc}} == {{Information |Description={{en|1=Plate 10. A. Periodogram of standard 5-year period. B. Periodogram of mixed periods. C. Periodogram of sunspot numbers, 1610-1910. D. Periodogram of Flagstaff 500-year record, to show cycl... |
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