Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula
We present a new 150-year, high-resolution, stable isotope record (d18O) from the Gomez ice core, drilled on the data sparse south western Antarctic Peninsula, revealing a ~2.7°C rise in surface temperatures since the 1950s. The record is highly correlated with satellite-derived temperature reconstr...
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ftuniveastangl:oai:ueaeprints.uea.ac.uk:24329 2024-04-21T07:51:59+00:00 Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula Thomas, E. R. Dennis, P. F. Bracegirdle, T. J. Franzke, C. 2009 https://ueaeprints.uea.ac.uk/id/eprint/24329/ https://doi.org/10.1029/2009GL040104 unknown Thomas, E. R., Dennis, P. F., Bracegirdle, T. J. and Franzke, C. (2009) Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula. Geophysical Research Letters, 36 (20). ISSN 1944-8007 doi:10.1029/2009GL040104 Article PeerReviewed 2009 ftuniveastangl https://doi.org/10.1029/2009GL040104 2024-03-27T17:54:51Z We present a new 150-year, high-resolution, stable isotope record (d18O) from the Gomez ice core, drilled on the data sparse south western Antarctic Peninsula, revealing a ~2.7°C rise in surface temperatures since the 1950s. The record is highly correlated with satellite-derived temperature reconstructions and instrumental records from Faraday station on the north west coast, thus making it a robust proxy for local and regional temperatures since the 1850s. We conclude that the exceptional 50-year warming, previously only observed in the northern Peninsula, is not just a local phenomena but part of a statistically significant 100-year regional warming trend that began around 1900. A suite of coupled climate models are employed to demonstrate that the 50 and 100 year temperature trends are outside of the expected range of variability from pre-industrial control runs, indicating that the warming is likely the result of external climate forcing. Article in Journal/Newspaper Antarc* Antarctic Antarctic Peninsula ice core University of East Anglia: UEA Digital Repository Geophysical Research Letters 36 20 |
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Open Polar |
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University of East Anglia: UEA Digital Repository |
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ftuniveastangl |
language |
unknown |
description |
We present a new 150-year, high-resolution, stable isotope record (d18O) from the Gomez ice core, drilled on the data sparse south western Antarctic Peninsula, revealing a ~2.7°C rise in surface temperatures since the 1950s. The record is highly correlated with satellite-derived temperature reconstructions and instrumental records from Faraday station on the north west coast, thus making it a robust proxy for local and regional temperatures since the 1850s. We conclude that the exceptional 50-year warming, previously only observed in the northern Peninsula, is not just a local phenomena but part of a statistically significant 100-year regional warming trend that began around 1900. A suite of coupled climate models are employed to demonstrate that the 50 and 100 year temperature trends are outside of the expected range of variability from pre-industrial control runs, indicating that the warming is likely the result of external climate forcing. |
format |
Article in Journal/Newspaper |
author |
Thomas, E. R. Dennis, P. F. Bracegirdle, T. J. Franzke, C. |
spellingShingle |
Thomas, E. R. Dennis, P. F. Bracegirdle, T. J. Franzke, C. Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula |
author_facet |
Thomas, E. R. Dennis, P. F. Bracegirdle, T. J. Franzke, C. |
author_sort |
Thomas, E. R. |
title |
Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula |
title_short |
Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula |
title_full |
Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula |
title_fullStr |
Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula |
title_full_unstemmed |
Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula |
title_sort |
ice core evidence for significant 100-year regional warming on the antarctic peninsula |
publishDate |
2009 |
url |
https://ueaeprints.uea.ac.uk/id/eprint/24329/ https://doi.org/10.1029/2009GL040104 |
genre |
Antarc* Antarctic Antarctic Peninsula ice core |
genre_facet |
Antarc* Antarctic Antarctic Peninsula ice core |
op_relation |
Thomas, E. R., Dennis, P. F., Bracegirdle, T. J. and Franzke, C. (2009) Ice core evidence for significant 100-year regional warming on the Antarctic Peninsula. Geophysical Research Letters, 36 (20). ISSN 1944-8007 doi:10.1029/2009GL040104 |
op_doi |
https://doi.org/10.1029/2009GL040104 |
container_title |
Geophysical Research Letters |
container_volume |
36 |
container_issue |
20 |
_version_ |
1796935252074037248 |