Image:Heinrich-events.png

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[edit] Description

Heinrich events, denoted by vertical green bars, plotted against temperature proxy data from Antarctic and Greenland ice cores. Dansgaard-Oeschger events can be seen most clearly in the Greenland delta 18O data. Darker green bars represent the Heinrich events from Hemming 2004, while the lighter green represents alternative dates for events 2 through 4 from Bond [1].

[edit] Copyright

This figure was produced by Leland McInnes using gnuplot and is licensed under the GFDL. All data is from publicly available sources.

GFDL

I, the creator of this work, hereby grant the permission 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.
Subject to disclaimers.


[edit] Data Sources

  1. (red) Vostok data: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/vostok/deutnat.txt
  2. (orange) EPICA DomeC data: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/antarctica/epica_domec/edc_dd.txt
  3. (purple) GRIP data: http://www.glaciology.gfy.ku.dk/data/grip-ss09sea-cl-50yr.stp
  4. (pale blue) NGRIP data:http://www.glaciology.gfy.ku.dk/data/NGRIP_d18O_50yrs.txt
  5. (pale green) Hemming estimates for Heinrich events:Heinrich event
  6. (lime green) Bond estimates for Heinrich events:Heinrich event

[edit] Related Images

Antarctic and Greenland temperature proxy data for 140,000 years.

Closeup of the GRIP and NGRIP data.

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