Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum
The timing of the last maximum extent of the Antarctic ice sheets relative to those in the Northern Hemisphere remains poorly understood. We develop a chronology for the Weddell Sea sector of the East Antarctic Ice Sheet that, combined with ages from other Antarctic ice-sheet sectors, indicates that...
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ftubkoeln:oai:USBKOELN.ub.uni-koeln.de:48365 2023-05-15T13:54:56+02:00 Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum Weber, Michael E. Clark, Peter U. Ricken, Werner Mitrovica, Jerry X. Hostetler, Steven W. Kuhn, Gerhard 2011 https://kups.ub.uni-koeln.de/48365/ eng eng AMER ASSOC ADVANCEMENT SCIENCE Weber, Michael E., Clark, Peter U., Ricken, Werner, Mitrovica, Jerry X., Hostetler, Steven W. and Kuhn, Gerhard orcid:0000-0001-6069-7485 (2011). Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum. Science, 334 (6060). S. 1265 - 1270. WASHINGTON: AMER ASSOC ADVANCEMENT SCIENCE. ISSN 1095-9203 ddc:no doc-type:article publishedVersion 2011 ftubkoeln 2022-11-09T07:30:06Z The timing of the last maximum extent of the Antarctic ice sheets relative to those in the Northern Hemisphere remains poorly understood. We develop a chronology for the Weddell Sea sector of the East Antarctic Ice Sheet that, combined with ages from other Antarctic ice-sheet sectors, indicates that the advance to and retreat from their maximum extent was within dating uncertainties synchronous with most sectors of Northern Hemisphere ice sheets. Surface climate forcing of Antarctic mass balance would probably cause an opposite response, whereby a warming climate would increase accumulation but not surface melting. Our new data support teleconnections involving sea-level forcing from Northern Hemisphere ice sheets and changes in North Atlantic deep-water formation and attendant heat flux to Antarctic grounding lines to synchronize the hemispheric ice sheets. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet North Atlantic Deep Water North Atlantic Weddell Sea Cologne University: KUPS Antarctic East Antarctic Ice Sheet The Antarctic Weddell Weddell Sea |
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Cologne University: KUPS |
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ftubkoeln |
language |
English |
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ddc:no |
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ddc:no Weber, Michael E. Clark, Peter U. Ricken, Werner Mitrovica, Jerry X. Hostetler, Steven W. Kuhn, Gerhard Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum |
topic_facet |
ddc:no |
description |
The timing of the last maximum extent of the Antarctic ice sheets relative to those in the Northern Hemisphere remains poorly understood. We develop a chronology for the Weddell Sea sector of the East Antarctic Ice Sheet that, combined with ages from other Antarctic ice-sheet sectors, indicates that the advance to and retreat from their maximum extent was within dating uncertainties synchronous with most sectors of Northern Hemisphere ice sheets. Surface climate forcing of Antarctic mass balance would probably cause an opposite response, whereby a warming climate would increase accumulation but not surface melting. Our new data support teleconnections involving sea-level forcing from Northern Hemisphere ice sheets and changes in North Atlantic deep-water formation and attendant heat flux to Antarctic grounding lines to synchronize the hemispheric ice sheets. |
format |
Article in Journal/Newspaper |
author |
Weber, Michael E. Clark, Peter U. Ricken, Werner Mitrovica, Jerry X. Hostetler, Steven W. Kuhn, Gerhard |
author_facet |
Weber, Michael E. Clark, Peter U. Ricken, Werner Mitrovica, Jerry X. Hostetler, Steven W. Kuhn, Gerhard |
author_sort |
Weber, Michael E. |
title |
Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum |
title_short |
Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum |
title_full |
Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum |
title_fullStr |
Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum |
title_full_unstemmed |
Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum |
title_sort |
interhemispheric ice-sheet synchronicity during the last glacial maximum |
publisher |
AMER ASSOC ADVANCEMENT SCIENCE |
publishDate |
2011 |
url |
https://kups.ub.uni-koeln.de/48365/ |
geographic |
Antarctic East Antarctic Ice Sheet The Antarctic Weddell Weddell Sea |
geographic_facet |
Antarctic East Antarctic Ice Sheet The Antarctic Weddell Weddell Sea |
genre |
Antarc* Antarctic Ice Sheet North Atlantic Deep Water North Atlantic Weddell Sea |
genre_facet |
Antarc* Antarctic Ice Sheet North Atlantic Deep Water North Atlantic Weddell Sea |
op_relation |
Weber, Michael E., Clark, Peter U., Ricken, Werner, Mitrovica, Jerry X., Hostetler, Steven W. and Kuhn, Gerhard orcid:0000-0001-6069-7485 (2011). Interhemispheric Ice-Sheet Synchronicity During the Last Glacial Maximum. Science, 334 (6060). S. 1265 - 1270. WASHINGTON: AMER ASSOC ADVANCEMENT SCIENCE. ISSN 1095-9203 |
_version_ |
1766261132155158528 |