File:Ghgs-lawdome-2000yr-CO2-asof2010.svg
Summary
| Description |
English: Atmospheric carbon dioxide concentrations in the Common Era (yrs. 0–2016).
Deutsch: Kohlenstoffdioxidkonzentration in der Erdatmosphäre seit Beginn der Zeitrechnung (Jahre 0–2016) |
| Date | |
| Source | Own work |
| Author | DeWikiMan |
| Other versions | cf. File:Global Atmospheric CO2 Historic.jpg for an older graph, spanning the last 1000yrs |
To reproduce:
- download data
- from the Cape Grim data: compute yearly averages, place it in columns 7 (value) and 8 (year), name it CapeGrim_CO2_yrly_data.csv (use spaces as separator)
- strip all non-data lines from the law dome data file and name it law2006-dataonly.txt
- run the following gnuplot-script (I used Gnuplot 4.4)
set terminal svg enhanced size 1000 400 fname "Liberation Sans" fsize 12
set output "ghgs-lawdome-2000yr-CO2-asof2010.svg"
set title "Carbon dioxide concentrations, 0–2016" font "Liberation Sans, 24"
set datafile missing '"#N/A"'
set obj 1 rectangle behind from screen 0,0 to screen 1,1
set obj 1 fillstyle solid 1.0 fillcolor rgbcolor "white"
set key top left Left reverse
set key nobox
set yrange [260:410]
set ytics out nomirror 260,20,400
set mytics 2
set xrange [0:2016]
set xtics out nomirror 0,200,2000
set mxtics 4
set grid xtics ytics mxtics mytics lt 0 lw 0.5 lc rgb "grey95"
set xlabel 'Year'
set ylabel 'CO_{2}-concentrations, ppm'
set style data lines
plot 'law2006-dataonly.txt' using 1:6 lt rgbcolor "blue" lw 3 title "Law dome ice core (D. Etheridge, 7/2010)", \
'CapeGrim_CO2_yrly_data.csv' using 8:7 lt rgbcolor "red" lw 3 title "Cape Grim measurements (CGBAPS, 2/2017)"
Licensing
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. |
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