Original file (SVG file, nominally 1,024 × 768 pixels, file size: 81 KB)
![]() | This is a file from the Wikimedia Commons. Information from its description page there is shown below. Commons is a freely licensed media file repository. You can help. |
DescriptionVostok Petit data.svg |
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.
العربية: مخطّطٌ يُبيّن علاقة ثاني أوكسيد الكاربون ودرجة الحرارة وتركيز الغبار في قالب جليد فوستوك (بالإنجليزيّة: Vostok ice core) خلال 450,000 سنة الماضيّة
|
Date | |
Source | Own work based on: Vostok-ice-core-petit.png by NOAA |
Author |
Original: Unknown Vector: |
Other versions |
Derivative works of this file: |
SVG development InfoField |
![]()
This plot was created with Gnuplot. ![]()
This file is translated using SVG switch elements: all translations are stored in the same file. |
Data sets used are:
Source code
InfoField
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 [-425:0] [-10:4] \
"deutnat.txt" \
using (-$2/1000):4 \
title "Temperature variation (ΔT)" \
ls 3 \
with lines
set ylabel "ppmv"
plot [-425:0] \
"co2nat.txt" \
using (-$1/1000):2 \
title "Carbon Dioxide" \
ls 2 \
with lines
set xlabel "Thousands of years ago"
set ylabel "ppm"
plot [-425:0] \
"dustnat.txt" \
using (-$1/1000):2 \
title "Dust concentration" \
ls 1 \
with lines
After executing gnuplot, the resulting SVG file was manually changed to
* remove the negative signs for the x axis values
* change the [[:w:hyphen-minus|hyphen-minus]] characters in the temperature axis values to proper minus sign characters
![]() ![]() ![]() |
This file is licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license. | |
| ||
This licensing tag was added to this file as part of the GFDL licensing update.http://creativecommons.org/licenses/by-sa/3.0/CC BY-SA 3.0Creative Commons Attribution-Share Alike 3.0truetrue |
![]() |
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 |
This image is a derivative work of the following images:
Uploaded with derivativeFX
Date/Time | Thumbnail | Dimensions | User | Comment | |
---|---|---|---|---|---|
current | 13:01, 25 June 2021 | ![]() | 1,024 × 768 (81 KB) | Matěj Orlický | File uploaded using svgtranslate tool (https://svgtranslate.toolforge.org/). Added translation for cs. |
22:25, 30 November 2013 | ![]() | 1,024 × 768 (77 KB) | SeL media | time axis reversed | |
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 |
This file contains additional information, probably added from the digital camera or scanner used to create or digitize it.
If the file has been modified from its original state, some details may not fully reflect the modified file.
Short title | Gnuplot |
---|---|
Image title | Produced by GNUPLOT 4.6 patchlevel 3 |
Width | 1024 |
Height | 768 |