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File:EPICA delta D plot.svg

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Summary

Description Plots of delta-deuterium against age and depth (from EPICA and Vostok). Note that the Vostok core is deeper, but does not extend as far back in time. Note also that the y-axis offset between the EPICA and Vostok cores in delta-deuterium is real: Vostok is a colder site, hence has more negative delta. Differences in the apparent age of events are likely to be inaccuracies in converting ice depth to age.
Date
Source Own work based on: Epica 18 plot.png
Author
SVG development
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The SVG code is valid.
 
This chart was created with Gnuplot.
 
This chart uses translateable embedded text.
Source code
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Gnuplot code

unset multiplot
set term svg size 1024,768
set output "epica-18.svg"

set grid y
set multiplot layout 2,1
set ylabel "δD"

set title "δD versus age"
set xlabel "Years before present"
plot [0:750000] \
 "epica.txt" using 3:6 title "EPICA" with lines, \
 "vostok.txt" using 2:3 title "Vostok" with lines

set title "δD versus depth"
set xlabel "Depth in m"
plot \
 "epica.txt" using 1:6 title "EPICA" with lines, \
 "vostok.txt" using 1:3 title "Vostok" with lines

Gnuplot data code

Data sets from:
* ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc_dd.txt
* ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/deutnat.txt


Public domain
This image is in the public domain because it contains materials that originally came from the U.S. National Oceanic and Atmospheric Administration, taken or made as part of an employee's official duties.

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Original upload log

This image is a derivative work of the following images:

  • Epica 18 plot.png licensed with PD-USGov
    • 2008-05-24T15:30:59Z Rosarinagazo 596x417 (11279 Bytes) {{Information |Description=Plots of delta-deuterium against age and depth (from EPICA and Vostok). Note that the Vostok core is deeper, but does not extend as far back in time. Note also that the y-axis offset between the EPI

Uploaded with derivativeFX

Captions

Ice core temperature records

Items portrayed in this file

depicts

inception

20 June 2010

File history

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Date/TimeThumbnailDimensionsUserComment
current12:22, 20 June 2010Thumbnail for version as of 12:22, 20 June 20101,024 × 768 (124 KB)Autopilot{{Information |Description=Plots of delta-deuterium against age and depth (from EPICA and Vostok). Note that the Vostok core is deeper, but does not extend as far back in time. Note also that the y-axis offset between the EPICA and Vostok cores in delta-d

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