The quandary of detecting the signature of climate change in Antarctica ...
<!--!introduction!--> The current global warming driven by human activities has been accentuated in Polar Regions due to the polar amplification, resulting in large releases of ice that have impacts on circulation and sea level at the global scale. In the Arctic, the temperature has increased...
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2023
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ftdatacite:10.57757/iugg23-3330 2023-07-23T04:15:09+02:00 The quandary of detecting the signature of climate change in Antarctica ... Casado, Mathieu Hébert, Raphael Faranda, Davide Landais, Amaelle 2023 https://dx.doi.org/10.57757/iugg23-3330 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5019663 en eng GFZ German Research Centre for Geosciences Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 Article ConferencePaper Oral 2023 ftdatacite https://doi.org/10.57757/iugg23-3330 2023-07-03T21:27:30Z <!--!introduction!--> The current global warming driven by human activities has been accentuated in Polar Regions due to the polar amplification, resulting in large releases of ice that have impacts on circulation and sea level at the global scale. In the Arctic, the temperature has increased at three times the global rate, and lead to significant melt of the Greenland ice sheet and sea ice decline. Yet, for Antarctica, the impact of warming is still poorly constrained given the lack of instrumental data and the large decadal climate variability. Using a compilation of 78 ice core records, we provide a high-resolution reconstruction of past temperatures over the last 1000 years for seven regions of Antarctica and direct evidence of Antarctic polar amplification at regional and continental scales. We also show that both the natural and forced variability are not captured by pseudo-proxy experiments using the CMIP5 and 6 ensembles. This that the feedback loops causing the polar amplification are not ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... Conference Object Antarc* Antarctic Antarctica Arctic Climate change Global warming Greenland ice core Ice Sheet Sea ice DataCite Metadata Store (German National Library of Science and Technology) Antarctic Arctic Greenland Quandary ENVELOPE(-61.580,-61.580,-64.864,-64.864) |
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Open Polar |
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DataCite Metadata Store (German National Library of Science and Technology) |
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ftdatacite |
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English |
description |
<!--!introduction!--> The current global warming driven by human activities has been accentuated in Polar Regions due to the polar amplification, resulting in large releases of ice that have impacts on circulation and sea level at the global scale. In the Arctic, the temperature has increased at three times the global rate, and lead to significant melt of the Greenland ice sheet and sea ice decline. Yet, for Antarctica, the impact of warming is still poorly constrained given the lack of instrumental data and the large decadal climate variability. Using a compilation of 78 ice core records, we provide a high-resolution reconstruction of past temperatures over the last 1000 years for seven regions of Antarctica and direct evidence of Antarctic polar amplification at regional and continental scales. We also show that both the natural and forced variability are not captured by pseudo-proxy experiments using the CMIP5 and 6 ensembles. This that the feedback loops causing the polar amplification are not ... : The 28th IUGG General Assembly (IUGG2023) (Berlin 2023) ... |
format |
Conference Object |
author |
Casado, Mathieu Hébert, Raphael Faranda, Davide Landais, Amaelle |
spellingShingle |
Casado, Mathieu Hébert, Raphael Faranda, Davide Landais, Amaelle The quandary of detecting the signature of climate change in Antarctica ... |
author_facet |
Casado, Mathieu Hébert, Raphael Faranda, Davide Landais, Amaelle |
author_sort |
Casado, Mathieu |
title |
The quandary of detecting the signature of climate change in Antarctica ... |
title_short |
The quandary of detecting the signature of climate change in Antarctica ... |
title_full |
The quandary of detecting the signature of climate change in Antarctica ... |
title_fullStr |
The quandary of detecting the signature of climate change in Antarctica ... |
title_full_unstemmed |
The quandary of detecting the signature of climate change in Antarctica ... |
title_sort |
quandary of detecting the signature of climate change in antarctica ... |
publisher |
GFZ German Research Centre for Geosciences |
publishDate |
2023 |
url |
https://dx.doi.org/10.57757/iugg23-3330 https://gfzpublic.gfz-potsdam.de/pubman/item/item_5019663 |
long_lat |
ENVELOPE(-61.580,-61.580,-64.864,-64.864) |
geographic |
Antarctic Arctic Greenland Quandary |
geographic_facet |
Antarctic Arctic Greenland Quandary |
genre |
Antarc* Antarctic Antarctica Arctic Climate change Global warming Greenland ice core Ice Sheet Sea ice |
genre_facet |
Antarc* Antarctic Antarctica Arctic Climate change Global warming Greenland ice core Ice Sheet Sea ice |
op_rights |
Creative Commons Attribution 4.0 International https://creativecommons.org/licenses/by/4.0/legalcode cc-by-4.0 |
op_doi |
https://doi.org/10.57757/iugg23-3330 |
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1772189148047736832 |