Impact of meltwater on high-latitude early Last Interglacial climate
Recent data compilations of the early Last Interglacial period have indicated a bipolar temperature response at 130 ka, with colder-than-present temperatures in the North Atlantic and warmer-than-present temperatures in the Southern Ocean and over Antarctica. However, climate model simulations of th...
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00011096 2023-05-15T13:34:49+02:00 Impact of meltwater on high-latitude early Last Interglacial climate Stone, Emma J. Capron, Emilie Lunt, Daniel J. Payne, Antony J. Singarayer, Joy S. Valdes, Paul J. Wolff, Eric W. 2016-09 electronic https://doi.org/10.5194/cp-12-1919-2016 https://noa.gwlb.de/receive/cop_mods_00011096 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011053/cp-12-1919-2016.pdf https://cp.copernicus.org/articles/12/1919/2016/cp-12-1919-2016.pdf eng eng Copernicus Publications Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-12-1919-2016 https://noa.gwlb.de/receive/cop_mods_00011096 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011053/cp-12-1919-2016.pdf https://cp.copernicus.org/articles/12/1919/2016/cp-12-1919-2016.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2016 ftnonlinearchiv https://doi.org/10.5194/cp-12-1919-2016 2022-02-08T22:56:40Z Recent data compilations of the early Last Interglacial period have indicated a bipolar temperature response at 130 ka, with colder-than-present temperatures in the North Atlantic and warmer-than-present temperatures in the Southern Ocean and over Antarctica. However, climate model simulations of this period have been unable to reproduce this response, when only orbital and greenhouse gas forcings are considered in a climate model framework. Using a full-complexity general circulation model we perform climate model simulations representative of 130 ka conditions which include a magnitude of freshwater forcing derived from data at this time. We show that this meltwater from the remnant Northern Hemisphere ice sheets during the glacial–interglacial transition produces a modelled climate response similar to the observed colder-than-present temperatures in the North Atlantic at 130 ka and also results in warmer-than-present temperatures in the Southern Ocean via the bipolar seesaw mechanism. Further simulations in which the West Antarctic Ice Sheet is also removed lead to warming in East Antarctica and the Southern Ocean but do not appreciably improve the model–data comparison. This integrated model–data approach provides evidence that Northern Hemisphere freshwater forcing is an important player in the evolution of early Last Interglacial climate. Article in Journal/Newspaper Antarc* Antarctic Antarctica East Antarctica Ice Sheet North Atlantic Southern Ocean Niedersächsisches Online-Archiv NOA Antarctic East Antarctica Southern Ocean West Antarctic Ice Sheet Climate of the Past 12 9 1919 1932 |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Stone, Emma J. Capron, Emilie Lunt, Daniel J. Payne, Antony J. Singarayer, Joy S. Valdes, Paul J. Wolff, Eric W. Impact of meltwater on high-latitude early Last Interglacial climate |
topic_facet |
article Verlagsveröffentlichung |
description |
Recent data compilations of the early Last Interglacial period have indicated a bipolar temperature response at 130 ka, with colder-than-present temperatures in the North Atlantic and warmer-than-present temperatures in the Southern Ocean and over Antarctica. However, climate model simulations of this period have been unable to reproduce this response, when only orbital and greenhouse gas forcings are considered in a climate model framework. Using a full-complexity general circulation model we perform climate model simulations representative of 130 ka conditions which include a magnitude of freshwater forcing derived from data at this time. We show that this meltwater from the remnant Northern Hemisphere ice sheets during the glacial–interglacial transition produces a modelled climate response similar to the observed colder-than-present temperatures in the North Atlantic at 130 ka and also results in warmer-than-present temperatures in the Southern Ocean via the bipolar seesaw mechanism. Further simulations in which the West Antarctic Ice Sheet is also removed lead to warming in East Antarctica and the Southern Ocean but do not appreciably improve the model–data comparison. This integrated model–data approach provides evidence that Northern Hemisphere freshwater forcing is an important player in the evolution of early Last Interglacial climate. |
format |
Article in Journal/Newspaper |
author |
Stone, Emma J. Capron, Emilie Lunt, Daniel J. Payne, Antony J. Singarayer, Joy S. Valdes, Paul J. Wolff, Eric W. |
author_facet |
Stone, Emma J. Capron, Emilie Lunt, Daniel J. Payne, Antony J. Singarayer, Joy S. Valdes, Paul J. Wolff, Eric W. |
author_sort |
Stone, Emma J. |
title |
Impact of meltwater on high-latitude early Last Interglacial climate |
title_short |
Impact of meltwater on high-latitude early Last Interglacial climate |
title_full |
Impact of meltwater on high-latitude early Last Interglacial climate |
title_fullStr |
Impact of meltwater on high-latitude early Last Interglacial climate |
title_full_unstemmed |
Impact of meltwater on high-latitude early Last Interglacial climate |
title_sort |
impact of meltwater on high-latitude early last interglacial climate |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/cp-12-1919-2016 https://noa.gwlb.de/receive/cop_mods_00011096 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011053/cp-12-1919-2016.pdf https://cp.copernicus.org/articles/12/1919/2016/cp-12-1919-2016.pdf |
geographic |
Antarctic East Antarctica Southern Ocean West Antarctic Ice Sheet |
geographic_facet |
Antarctic East Antarctica Southern Ocean West Antarctic Ice Sheet |
genre |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet North Atlantic Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctica East Antarctica Ice Sheet North Atlantic Southern Ocean |
op_relation |
Climate of the Past -- http://www.copernicus.org/EGU/cp/cp/published_papers.html -- http://www.bibliothek.uni-regensburg.de/ezeit/?2217985 -- 1814-9332 https://doi.org/10.5194/cp-12-1919-2016 https://noa.gwlb.de/receive/cop_mods_00011096 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011053/cp-12-1919-2016.pdf https://cp.copernicus.org/articles/12/1919/2016/cp-12-1919-2016.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/cp-12-1919-2016 |
container_title |
Climate of the Past |
container_volume |
12 |
container_issue |
9 |
container_start_page |
1919 |
op_container_end_page |
1932 |
_version_ |
1766057874621988864 |