File:Past 740 kyrs Dome-Concordia ice core temperature reconstructions.png
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Summary
| Description |
English: Graphic 740,000 year profile of temperature & CO2 variation (available data plotted) as derived from Dome-Concordia ice core, Antarctica.
Note the climatic "heart-beat" pulsing at a cycle of ~100,000 year intervals and the prevailing normality of much cooler climatic conditions than present. Note also ice-core CO2 value curve overlaid on the same time-scale as the temperature (proxy), which shows clearly that temperature variation precedes CO2 change by >700 years on a sustained basis. Note the position of the previous warm period ~120,000 years BP immediately pre-dates the oldest ice in greenland (110,000 years), which strongly suggests that all ice in Greenland melted in that warm event, and reformed as an ice sheet after the termination of the warm-age ~110,000 years BP. |
| Date | 19 November 2007 (original upload date) |
| Source | Transferred from en.wikipedia to Commons. |
| Author | Rockknowledge at English Wikipedia |
Licensing
Rockknowledge at English Wikipedia, the copyright holder of this work, hereby publishes it under the following licenses:
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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. |
This file is licensed under the Creative Commons Attribution 3.0 Unported license.
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Original upload log
The original description page was here. All following user names refer to en.wikipedia.
- 2007-11-19 08:02 Rockknowledge 1671×1051×8 (166136 bytes) Graphic 740,000 year profile of temperature & CO2 variation (available data plotted)as derived from Dome-Concordia ice core, Antarctica. Note the climatic "heart-beat" pulsing at a cycle of ~100,000 year intervals and the prevailing normality of much cool
File history
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| Date/Time | Thumbnail | Dimensions | User | Comment | |
|---|---|---|---|---|---|
| current | 05:08, 16 May 2008 | | 1,671 × 1,051 (162 KB) | File Upload Bot (Magnus Manske) | {{BotMoveToCommons|en.wikipedia}} {{Information |Description={{en|Graphic 740,000 year profile of temperature & CO2 variation (available data plotted) as derived from Dome-Concordia ice core, Antarctica. Note the climatic "heart-beat" pulsing at a cycle |
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