File:NH temperature 2ka.png
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| Description |
English: Average temperature of the Northern Hemisphere during the past 2000 years. The grey lines are the annual reconstructed estimates. The bold curve is the low frequency component (estimable between 133 and 1925). Colours indicate especially cold and warm periods. (Cold: Migration Period and Little Ice Age; warm: Medieval Warm Period and the Present.) The thin lines are the 95% confidence intervals (uncertainty due to the variance among the different proxies used). |
| Date | Originally uploaded 2006-12-07 |
| Source | graph drawn by Hanno using data published by A. Moberg, D.M. Sonechkin, K. Holmgren, N.M. Datsenko, W. Karlén, and S.-E. Lauritzen (2005, Highly variable Northern Hemisphere temperatures reconstructed from low- and high-resolution proxy data. Nature (London), 433, 613–617). Temperatures for the last three decades of the 20th Century were taken from P.D. Jones, D.E. Parker, T.J. Osborn & K.R. Briffa (2005, Global and hemispheric temperature anomalies – land and marine instrumental records. In Trends: A Compendium of Data on Global Change. Carbon Dioxide Information Analysis Center, Oak Ridge National Laboratory, U.S. |
| Author | Hanno, based upon the sources quoted above |
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Released under the GNU Free Documentation Licence and the cc-by-sa-2.5 Licence by the originator |
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Permission is granted 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. A copy of the license is included in the section entitled GNU Free Documentation License. |
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 19:38, 7 December 2006 | | 1,688 × 1,132 (123 KB) | Hanno |
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