File:Ice-core-isotope.png

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Summary

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Description
Deutsch: Vergleich zwischen Temperatur-Proxies aus Eisbohrkernen der Antarktis und Grönland der letzten 140,000 Jahre. Während die Antarktis-Bohrkerne Delta 2H verwenden, wurde bei den Grönland Bohrkernen Delta 18O verwendet. Auffallend sind hier die de:Dansgaard-Oeschger-Ereignisse in den Grönland-Eisbohrkernen im Zeitraum von 20,000 bis 110,000 BP. Diese Ereignisse sind in den entsprechenden Kernen aus der Antarktis kaum zu erkennen
English: Comparison of temperature proxies for ice cores from Antarctica and Greenland for 140,000 years. Greenland ice cores use delta 18O, while Antarctic ice cores use delta 2H. Note the en:Dansgaard-Oeschger events in the Greenland ice core between 20,000 and 110,000 years ago, which barely register (if at all) in the corresponding Antarctic record. GRIP and NGRIP data is on ss09sea timescale, Vostok uses GT4, and EPICA uses EDC2.
Date 5 February 2006 (original upload date)
Source Transferred from en.wikipedia to Commons by Common Good using CommonsHelper.
Author Leland McInnes at English Wikipedia

Licensing

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Leland McInnes at the English-language Wikipedia, the copyright holder of this work, hereby publishes it under the following license:
w:en:Creative Commons
attribution share alike 		This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. Subject to disclaimers.
Attribution: Leland McInnes at the English-language Wikipedia
You are free:
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This licensing tag was added to this file as part of the GFDL licensing update.
GNU head 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. Subject to disclaimers.
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This figure was produced by Leland McInnes using gnuplot and is licensed under the en:GFDL. All data is from publicly available sources.

Data Sources

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  1. (red) Vostok data: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/deutnat.txt
  2. (orange) EPICA DomeC data: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc_dd.txt
  3. (purple) GRIP data: http://www.glaciology.gfy.ku.dk/data/grip-ss09sea-cl-50yr.stp
  4. (pale blue) NGRIP data:http://www.glaciology.gfy.ku.dk/data/NGRIP_d18O_50yrs.txt
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  • A similar chart showing unadjusted GRIP data.
    A similar chart showing unadjusted GRIP data.
  • Closeup of the GRIP and NGRIP data.
    Closeup of the GRIP and NGRIP data.
  • Heinrich events against this data.
    Heinrich events against this data.
  • Correlation of EPICA delta 2H data with Vostok and EPICA CO2 data.
    Correlation of EPICA delta 2H data with Vostok and EPICA CO2 data.

Original upload log

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The original description page was here. All following user names refer to en.wikipedia.
  • 2006-02-05 08:19 Leland McInnes 1250×875× (181801 bytes) Comparison of temperature proxies for ice cores from Antarctica and Greenland for 140,000 years. Greenland ice cores use delta <sup>18</sup>O, while Antarctic ice cores use delta <sup>2</sup>H. Note the [[Dansgaard-Oeschger event]]s in the Greenland ice c

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