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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ftethz:oai:www.research-collection.ethz.ch:20.500.11850/557118 2023-05-15T16:39:52+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 application/application/pdf https://hdl.handle.net/20.500.11850/557118 https://doi.org/10.3929/ethz-b-000557118 en eng Nature info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-022-31619-3 info:eu-repo/semantics/altIdentifier/wos/000820356400020 info:eu-repo/grantAgreement/ETHZ/ETH Grants/ETH-13 18-1 http://hdl.handle.net/20.500.11850/557118 doi:10.3929/ethz-b-000557118 info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International CC-BY Nature Communications, 13 (1) Palaeoceanography Palaeoclimate info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion 2022 ftethz https://doi.org/20.500.11850/557118 https://doi.org/10.3929/ethz-b-000557118 https://doi.org/10.1038/s41467-022-31619-3 2023-02-13T01:07:16Z 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. ISSN:2041-1723 Article in Journal/Newspaper Ice Sheet North Atlantic ETH Zürich Research Collection |
institution |
Open Polar |
collection |
ETH Zürich Research Collection |
op_collection_id |
ftethz |
language |
English |
topic |
Palaeoceanography Palaeoclimate |
spellingShingle |
Palaeoceanography Palaeoclimate 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 |
topic_facet |
Palaeoceanography Palaeoclimate |
description |
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. ISSN:2041-1723 |
format |
Article in Journal/Newspaper |
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 |
publishDate |
2022 |
url |
https://hdl.handle.net/20.500.11850/557118 https://doi.org/10.3929/ethz-b-000557118 |
genre |
Ice Sheet North Atlantic |
genre_facet |
Ice Sheet North Atlantic |
op_source |
Nature Communications, 13 (1) |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1038/s41467-022-31619-3 info:eu-repo/semantics/altIdentifier/wos/000820356400020 info:eu-repo/grantAgreement/ETHZ/ETH Grants/ETH-13 18-1 http://hdl.handle.net/20.500.11850/557118 doi:10.3929/ethz-b-000557118 |
op_rights |
info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/4.0/ Creative Commons Attribution 4.0 International |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/20.500.11850/557118 https://doi.org/10.3929/ethz-b-000557118 https://doi.org/10.1038/s41467-022-31619-3 |
_version_ |
1766030214191644672 |