Image:Vostok 420ky 4curves insolation.jpg

From Wikipedia, the free encyclopedia

Image
File history
File links

Size of this preview: 800 × 546 pixel
Image in higher resolution (1600 × 1092 pixel, file size: 189 KB, MIME type: image/jpeg)

This graph image was uploaded in the PNG, GIF, or JPEG format. However, it contains information that could be stored more efficiently and/or more accurately in the SVG format. If possible, please upload an SVG version of this image. After doing so, please replace all instances of the previous version throughout Wikipedia (noted under the "File links" header), tag the old version with {{Vector version available|NewImage.svg}}, and remove this tag. For more information, see Wikipedia:Preparing images for upload. For assistance with converting to SVG, please see the Graphics Lab.

420,000 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 gas.
Levels of methane (CH₄).
Relative temperature (converted from ²H isotope in ice).
Levels of carbon dioxide (CO₂).

[edit] Related images

Carbon dioxide, last 400kyr.	DO18 from EPICA and Vostok, last 40kyr.	From the Vostok and EPICA (Antarctica) and GRIP (Greenland) ice cores: d-o-18, last 140kyr.	From the Vostok and EPICA (Antarctica) and GRIP (Greenland) ice cores: d-o-18, last 40kyr.
As for Image:Epica-vostok-grip-40kyr.png but the green lines mark the temporal extent of the so-called Holocene Climatic Optimum.	This figure shows the variations in Earth's orbit, the resulting changes in solar energy flux at high latitude, and the observed glacial cycles.	Graph of Vostok CO2/T/dust from Petit 1999 paper.

[edit] Source

This work is in the public domain in the United States because it is a work of the United States Federal Government under the terms of 17 U.S.C. § 105. See Copyright.

Note: This only applies to works of the Federal Government and not to the work of any individual US state, territory, commonwealth, county, subdivision, or municipality.

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

File history

Legend: (cur) = this is the current file, (del) = delete this old version, (rev) = revert to this old version.
Click on date to download the file or see the image uploaded on that date.

(del) (cur) 06:03, 6 April 2005 . . SEWilco (Talk | contribs) . . 1600×1092 (193,421 bytes)
(del) (rev) 04:06, 4 April 2005 . . SEWilco (Talk | contribs) . . 1600×1092 (292,546 bytes) (420,000 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 <sup>18</sup>O). * <sub>18</sup>O isotope of [)