File:Vostok 420ky 4curves insolation.jpg

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420,000 years of ice core data from Vostok, Antarctica research station.

Year Zero (1950) is at left. Source

From bottom to top:

  • Solar variation at 65°N due to en:Milankovitch cycles (connected to 18O).
  • 18O isotope of oxygen.
  • Levels of methane (CH4).
  • Relative temperature.
  • Levels of carbon dioxide (CO2).

From top to bottom:

  • Levels of carbon dioxide (CO2).
  • Relative temperature.
  • Levels of methane (CH4).
  • 18O isotope of oxygen.
  • Solar variation at 65°N due to en:Milankovitch cycles (connected to 18O).


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This file has been identified as being free of known restrictions under copyright law, including all related and neighboring rights.

source: http://www.usgcrp.gov/usgcrp/images/Vostok.jpg

J. R. Petit, et al., “Climate and atmospheric history of the past 420,000 years from the Vostok ice core, Antarctica”, Nature 399:429-436 (1999).

derivative works

Derivative works of this file:  Vostok 420ky 4curves insolation to 2004.jpg

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Date/TimeThumbnailDimensionsUserComment
current17:58, 2 May 2010Thumbnail for version as of 17:58, 2 May 20101,600 × 1,092 (189 KB)Pieter KuiperReverted to version as of 08:27, 12 June 2005
18:58, 8 April 2010Thumbnail for version as of 18:58, 8 April 20101,600 × 1,092 (2 KB)Suarez ruibalversión en svg
08:27, 12 June 2005Thumbnail for version as of 08:27, 12 June 20051,600 × 1,092 (189 KB)Samulili420,000 years of ice core data from Vostok, Antarctica research station. Current period is at left. From bottom to top: Solar variation at 65°N due to Milankovitch cycles (connected to 18O). 18O isotope of oxygen. Levels of methane (CH4). Relative temp
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