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Summary

Description
English: The temperature reconstruction produced using data from all six ice cores is shown by the black line in the attached figure, and spans the period from 9690BC to AD1970. The blue lines represent two focus on the dataset, first on the Late Holocene (or Meghalayan) and then on the last millenium. It has a resolution of around 20 years, meaning that each data point represents the average temperature of the surrounding 20 years. So, the end of the record – 1970 – shows the average temperature between 1960 and 1980.

The original data for the creation of these figures have been downloaded from the NOAA website: ftp://ftp.ncdc.noaa.gov/pub/data/paleo/icecore/greenland/vinther2009greenland.txt

ORIGINAL REFERENCE: Vinther, B.M., S.L. Buchardt, H.B. Clausen, D. Dahl-Jensen, S.J. Johnsen, D.A. Fisher, R.M. Koerner, D. Raynaud, V. Lipenkov, K.K. Andersen, T. Blunier, S.O. Rasmussen, J.P. Steffensen, and A.M. Svensson. 2009. Holocene thinning of the Greenland ice sheet. Nature, Vol. 461, pp. 385-388, 17 September 2009. doi:10.1038/nature08355

SEE ALSO: Factcheck: What Greenland ice cores say about past and present climate change

https://www.carbonbrief.org/factcheck-what-greenland-ice-cores-say-about-past-and-present-climate-change
Date
Source Own work
Author Ambactos55

I made these figures to propose a correct version of the previous figure made by Artreve. His version used incorrectly the stated baseline (1880-1960 average) and missed the last centuries from the dataset.

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Captions

Greenland ice sheet temperature interpreted with Oxygen-18 isotopic data from 6 ice cores (original dataset from Vinther et al. 2009)

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23 January 2020

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Date/TimeThumbnailDimensionsUserComment
current18:05, 23 January 2020Thumbnail for version as of 18:05, 23 January 20202,006 × 1,129 (472 KB)Ambactos55Better frame and clipping.
17:45, 23 January 2020Thumbnail for version as of 17:45, 23 January 20201,937 × 1,090 (268 KB)Ambactos55{{Information |description ={{en|1=The temperature reconstruction produced using data from all six ice cores is shown by the black line in the attached figure, and spans the period from 9690BC to AD1970. The blue lines represent two focus on the dataset, first on the Late Holocene (or Meghalayan) and then on the last millenium. It has a resolution of around 20 years, meaning that each data point represents the average temperature of the surrounding 20 years. So, the end of the record – 1970...

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