File:Volcanic forcing-reconstructed.svg

Summary

Description
English: Reconstructed global volcanic aerosol forcing 500 BCE – 2000 CE (Sigl et al. 2015). Cf. Fig. 3 in Sigl et al. (2015)
Deutsch: Rekonstruierter Strahlungsantrieb durch vulkanische Aerosole von 500 v.u.Z bis 2000 n.u.Z.
Date
Source Own work
Author DeWikiMan
Other versions German: File:Volcanic forcing-reconstructed-de.svg

Literature and Sources:

  • M. Sigl et al.: Timing and climate forcing of volcanic eruptions for the past 2,500 years. In: Nature. 2015. DOI: 10.1038/nature14565

First, the data provided by Sigl et al. (2015) has been split into four space-separated files (first column: year, second column: forcing):

  • volcanic_forcing_t.csv for tropical eruptions,
  • volcanic_forcing_n.csv with eruptions in northern hemisphere
  • volcanic_forcing_s.csv with eruptions in southern hemisphere
  • volcanic_forcing_m.csv with forcing < -10 W/m2

Then the plot has been created with Gnuplot 4.4 using the following script:

set terminal svg enhanced size 1250 400 fname "Nimbus Sans L" fsize 10
set output "volcanic_forcing-reconstructed.svg"
set title "Global volcanic aerosol forcing 500 BCE - 2000 CE"  font "Nimbus Sans L, 20"
set datafile missing '"#N/A"'
set key top right
set yrange [0:-40]
set ytics  0,-10,-40
set mytics 2
set xrange [-500:2000]
set xtics -500,200,2000
set mxtics 4
set xlabel 'Year'
set ylabel 'Forcing in W / m^2'
set boxwidth 1
set style fill solid
set grid mytics lt 0 lw 0.5 lc rgb "grey"
set grid mxtics lt 0 lw 0.5 lc rgb "grey"
set grid ytics lt 0 lw 0.5 lc rgb "grey"
set grid xtics lt 0 lw 0.5 lc rgb "grey"
set style line 1 lc rgb "#228B22"
set style line 2 lc rgb "red"
set style line 3 lc rgb "blue"
plot 'volcanic_forcing_t.csv' using 1:2 with boxes ls 1 title "tropical", \
     'volcanic_forcing_n.csv' using 1:2 with boxes ls 2 title "northern hemisphere", \
     'volcanic_forcing_s.csv' using 1:2 with boxes ls 3 title "southern hemisphere", \
     'volcanic_forcing_m.csv' using 1:($2-1):1 with labels title "(eruptions < -10 W/m^2 labeled with year)"

Licensing

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Category:Self-published work Category:Climatological diagrams Category:Holocene volcanism Category:English-language SVG diagrams Category:Images with Gnuplot source code Category:Holocene climate
Category:CC-BY-3.0 Category:Climatological diagrams Category:English-language SVG diagrams Category:GFDL Category:Holocene climate Category:Holocene volcanism Category:Images with Gnuplot source code Category:License migration redundant Category:Self-published work