Rapid northern hemisphere ice sheet melting during the penultimate deglaciation
The rate and consequences of future high latitude ice sheet retreat remain a major concern given ongoing anthropogenic warming. Here, new precisely dated stalagmite data from NW Iberia provide the first direct, high-resolution records of periods of rapid melting of Northern Hemisphere ice sheets dur...
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ftpubmed:oai:pubmedcentral.nih.gov:9250507 2023-05-15T16:39:47+02:00 Rapid northern hemisphere ice sheet melting during the penultimate deglaciation Stoll, Heather M. Cacho, Isabel Gasson, Edward Sliwinski, Jakub Kost, Oliver Moreno, Ana Iglesias, Miguel Torner, Judit Perez-Mejias, Carlos Haghipour, Negar Cheng, Hai Edwards, R. Lawrence 2022-07-02 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9250507/ http://www.ncbi.nlm.nih.gov/pubmed/35780147 https://doi.org/10.1038/s41467-022-31619-3 en eng Nature Publishing Group UK http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9250507/ http://www.ncbi.nlm.nih.gov/pubmed/35780147 http://dx.doi.org/10.1038/s41467-022-31619-3 © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . CC-BY Nat Commun Article Text 2022 ftpubmed https://doi.org/10.1038/s41467-022-31619-3 2022-07-10T00:36:08Z The rate and consequences of future high latitude ice sheet retreat remain a major concern given ongoing anthropogenic warming. Here, new precisely dated stalagmite data from NW Iberia provide the first direct, high-resolution records of periods of rapid melting of Northern Hemisphere ice sheets during the penultimate deglaciation. These records reveal the penultimate deglaciation initiated with rapid century-scale meltwater pulses which subsequently trigger abrupt coolings of air temperature in NW Iberia consistent with freshwater-induced AMOC slowdowns. The first of these AMOC slowdowns, 600-year duration, was shorter than Heinrich 1 of the last deglaciation. Although similar insolation forcing initiated the last two deglaciations, the more rapid and sustained rate of freshening in the eastern North Atlantic penultimate deglaciation likely reflects a larger volume of ice stored in the marine-based Eurasian Ice sheet during the penultimate glacial in contrast to the land-based ice sheet on North America as during the last glacial. Text Ice Sheet North Atlantic PubMed Central (PMC) Nature Communications 13 1 |
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Article Stoll, Heather M. Cacho, Isabel Gasson, Edward Sliwinski, Jakub Kost, Oliver Moreno, Ana Iglesias, Miguel Torner, Judit Perez-Mejias, Carlos Haghipour, Negar Cheng, Hai Edwards, R. Lawrence Rapid northern hemisphere ice sheet melting during the penultimate deglaciation |
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Article |
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The rate and consequences of future high latitude ice sheet retreat remain a major concern given ongoing anthropogenic warming. Here, new precisely dated stalagmite data from NW Iberia provide the first direct, high-resolution records of periods of rapid melting of Northern Hemisphere ice sheets during the penultimate deglaciation. These records reveal the penultimate deglaciation initiated with rapid century-scale meltwater pulses which subsequently trigger abrupt coolings of air temperature in NW Iberia consistent with freshwater-induced AMOC slowdowns. The first of these AMOC slowdowns, 600-year duration, was shorter than Heinrich 1 of the last deglaciation. Although similar insolation forcing initiated the last two deglaciations, the more rapid and sustained rate of freshening in the eastern North Atlantic penultimate deglaciation likely reflects a larger volume of ice stored in the marine-based Eurasian Ice sheet during the penultimate glacial in contrast to the land-based ice sheet on North America as during the last glacial. |
format |
Text |
author |
Stoll, Heather M. Cacho, Isabel Gasson, Edward Sliwinski, Jakub Kost, Oliver Moreno, Ana Iglesias, Miguel Torner, Judit Perez-Mejias, Carlos Haghipour, Negar Cheng, Hai Edwards, R. Lawrence |
author_facet |
Stoll, Heather M. Cacho, Isabel Gasson, Edward Sliwinski, Jakub Kost, Oliver Moreno, Ana Iglesias, Miguel Torner, Judit Perez-Mejias, Carlos Haghipour, Negar Cheng, Hai Edwards, R. Lawrence |
author_sort |
Stoll, Heather M. |
title |
Rapid northern hemisphere ice sheet melting during the penultimate deglaciation |
title_short |
Rapid northern hemisphere ice sheet melting during the penultimate deglaciation |
title_full |
Rapid northern hemisphere ice sheet melting during the penultimate deglaciation |
title_fullStr |
Rapid northern hemisphere ice sheet melting during the penultimate deglaciation |
title_full_unstemmed |
Rapid northern hemisphere ice sheet melting during the penultimate deglaciation |
title_sort |
rapid northern hemisphere ice sheet melting during the penultimate deglaciation |
publisher |
Nature Publishing Group UK |
publishDate |
2022 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9250507/ http://www.ncbi.nlm.nih.gov/pubmed/35780147 https://doi.org/10.1038/s41467-022-31619-3 |
genre |
Ice Sheet North Atlantic |
genre_facet |
Ice Sheet North Atlantic |
op_source |
Nat Commun |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC9250507/ http://www.ncbi.nlm.nih.gov/pubmed/35780147 http://dx.doi.org/10.1038/s41467-022-31619-3 |
op_rights |
© The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) . |
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CC-BY |
op_doi |
https://doi.org/10.1038/s41467-022-31619-3 |
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Nature Communications |
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13 |
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