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Fayil:Vostok Petit data.svg

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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
Rana
Masomi Own work based on: Vostok-ice-core-petit.png by NOAA
Marubucin
Original:
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Derivative works of this file:

SVG genesis
InfoField
W3C grn 
The SVG code is valid.
Gnuplot val 
This plot was created with Gnuplot.
OOjs UI icon language-constructive 
 This file is translated using SVG switch elements: all translations are stored in the same file.

Data sets used are:

Lissajous small 
This plot was created with Gnuplot.

Source code

InfoField

Gnuplot code

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

Explanation

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
I, the copyright holder of this work, hereby publish it under the following licenses:
w:en:Creative Commons
Jinginarwa Yada ahaka 		Wannan fayil ɗin an bada lasisin shi ƙarƙashin Creative Commons Attribution-Share Alike 3.0 Unported lasisi.
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This licensing tag was added to this file as part of the GFDL licensing update.
GNU head An bada damar a kofa, a yaɗa/ko sauya wannan kundi ƙarƙashin Lasisin GNU ta kyauta, Fitarwa na 1.2 ko duk wani fitarwa da zai biyo baya daga Gidauniyar Samar da Software ta Kyauta; ba tare da sauyin sashe ba, babu Rubutun Fuskar gaban shafi, kuma babu Rubutun bayan shafi. Kofi na lasisin na nan an sanya sa aciki ƙarƙashin sashen GNU Free Documentation License.
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Original upload log

This image is a derivative work of the following images:

  • 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.

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20 Yuni 2010

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Rana/LokaciWadar sufaKusurwowiMa'aikaciBahasi
na yanzu13:01, 25 ga Yuni, 2021Wadar sufa ta zubin 13:01, 25 ga Yuni, 20211,024 × 768 (81 KB)Matěj OrlickýFile uploaded using svgtranslate tool (https://svgtranslate.toolforge.org/). Added translation for cs.
22:25, 30 Nuwamba, 2013Wadar sufa ta zubin 22:25, 30 Nuwamba, 20131,024 × 768 (77 KB)SeL mediatime axis reversed
17:39, 25 Satumba 2011Wadar sufa ta zubin 17:39, 25 Satumba 20111,024 × 768 (309 KB)Hel-hamatext improved
03:07, 27 ga Afirilu, 2011Wadar sufa ta zubin 03:07, 27 ga Afirilu, 20111,024 × 768 (83 KB)AwickertDidn't realize that it was a draw-on box instead of a measuring-box. Take 3!
03:05, 27 ga Afirilu, 2011Wadar sufa ta zubin 03:05, 27 ga Afirilu, 20111,024 × 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 ga Afirilu, 2011Wadar sufa ta zubin 03:02, 27 ga Afirilu, 20111,024 × 768 (75 KB)AwickertManually moved axes in Inkscape such that the three plots line up with one another
13:25, 20 ga Yuni, 2010Wadar sufa ta zubin 13:25, 20 ga Yuni, 20101,024 × 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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