File:Vostok Petit data.svg
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Description |
La bildo estas kopiita de wikipedia:en. La originala priskribo estas: Graph of CO2 (Green graph), temperature (Blue graph), and dust concentration (Red graph) measured from the Vostok, Antarctica ice core as reported by Petit et al., 1999. Higher dust levels are believed to be caused by cold, dry periods. The Earth's orbital eccentricity, tilt, and precession vary in a pattern over thousands of years. The IPCC notes that Milankovitch cycles drove the ice age cycles; CO2 followed temperature change "with a lag of some hundreds of years" (visible on a graph more zoomed in than this); and that as a feedback amplified temperature change. Among other factors, CO2 is more soluble in colder than in warmer waters. |
Date |
2010-06-20 13:24 (UTC) |
Source |
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Author |
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Other versions |
Derivative works of this file:
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Data sets used are:
gnuplot commands:
unset multiplot
set term svg size 1024,768
set output "vostok-data.svg"
set border 3
set xtics nomirror
set ytics nomirror
unset xlabel
unset ylabel
set grid y
set multiplot layout 3,1
set ylabel "°C"
plot [0:425] \
"deutnat.txt" \
using ($2/1000):4 \
title "Temperature variation (ΔT)" \
ls 3 \
with lines
set ylabel "ppmv"
plot [0:425] \
"co2nat.txt" \
using ($1/1000):2 \
title "Carbon Dioxide" \
ls 2 \
with lines
set xlabel "Thousands of years ago"
set ylabel "ppm"
plot [0:425] \
"dustnat.txt" \
using ($1/1000):2 \
title "Dust concentration" \
ls 1 \
with lines
I, the copyright holder of this work, hereby publish 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.
http://www.gnu.org/copyleft/fdl.htmlGFDLGNU Free Documentation Licensetruetrue
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You may select the license of your choice.
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[edit] Original upload log
This image is a derivative work of the following images:
- File:Vostok-ice-core-petit.png licensed with Cc-by-sa-3.0-migrated, GFDL
- 2006-02-15T20:38:10Z Maksim 598x441 (31557 Bytes) La bildo estas kopiita de wikipedia:en. La originala priskribo estas: Graph of [[carbon dioxide|CO2]], [[temperature]], and dust concentration measured from the [[Vostok, Antarctica]] [[ice core]] as reported by Petit et al.
Uploaded with derivativeFX
File history
Click on a date/time to view the file as it appeared at that time.
| Date/Time | Thumbnail | Dimensions | User | Comment |
current | 17:39, 25 September 2011 | | 1,024 × 768 (309 KB) | Hel-hama | text improved |
| 03:07, 27 April 2011 | | 1,024 × 768 (83 KB) | Awickert | Didn't realize that it was a draw-on box instead of a measuring-box. Take 3! |
| 03:05, 27 April 2011 | | 1,024 × 768 (83 KB) | Awickert | [Shoot - last time, picked original instead of new version to upload] Manually moved axes in Inkscape such that the three plots line up with one another |
| 03:02, 27 April 2011 | | 1,024 × 768 (75 KB) | Awickert | Manually moved axes in Inkscape such that the three plots line up with one another |
| 13:25, 20 June 2010 | | 1,024 × 768 (75 KB) | Autopilot | {{Information |Description=La bildo estas kopiita de wikipedia:en. La originala priskribo estas: Graph of CO<sub>2</sub> (Green graph), temperature (Blue graph), and dust concentration (Red graph) measured from the [[Vostok, Antarc |
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