Image:Heinrich-events.png

From Wikipedia, the free encyclopedia

Image
File history
File links

Size of this preview: 800 × 560 pixels
Full resolution‎ (1,250 × 875 pixels, file size: 170 KB, MIME type: image/png)

This is a candidate to be copied to the Wikimedia Commons. Appropriately licensed media are more accessible to other Wikimedia projects if placed on Commons. Any user may perform this move - please see Moving images to the Commons for more information.

Copy to Commons via CommonsHelper

[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.

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

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

This file is an exact duplicate of another file from the Wikimedia Commons. Unless it is currently protected from editing, this media file may qualify for speedy deletion if it satisfies these conditions.

File history

Click on a date/time to view the file as it appeared at that time.

	Date/Time	Dimensions	User	Comment
current	22:41, 5 February 2006	1,250×875 (170 KB)	Leland McInnes (Talk \| contribs)	(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 <sup>18</sup>O data. Darker green bars repres)