Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model
Heinrich events, related to large-scale surges of the Laurentide ice sheet, represent one of the most dramatic types of abrupt climate change occurring during the last glacial. Here, using a coupled atmosphere-ocean-biosphere-ice sheet model, we simulate quasi-periodic large-scale surges from the La...
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Online Access: | http://hdl.handle.net/2115/34653 https://doi.org/10.1029/2002GL016078 |
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fthokunivhus:oai:eprints.lib.hokudai.ac.jp:2115/34653 2023-05-15T16:39:37+02:00 Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model Calov, Reinhard Ganopolski, Andrey Petoukhov, Vladimir Claussen, Martin Greve, Ralf http://hdl.handle.net/2115/34653 https://doi.org/10.1029/2002GL016078 eng eng American Geophysical Union http://hdl.handle.net/2115/34653 Geophysical Research Letters, 29(24): 2216 http://dx.doi.org/10.1029/2002GL016078 An edited version of this paper was published by AGU. Copyright 2002 American Geophysical Union. Glaciology Climate dynamics Paleoclimatology Heinrich event Surge 452 article (author version) fthokunivhus https://doi.org/10.1029/2002GL016078 2022-11-18T01:01:37Z Heinrich events, related to large-scale surges of the Laurentide ice sheet, represent one of the most dramatic types of abrupt climate change occurring during the last glacial. Here, using a coupled atmosphere-ocean-biosphere-ice sheet model, we simulate quasi-periodic large-scale surges from the Laurentide ice sheet. The average time between simulated events is about 7,000 yrs, while the surging phase of each event lasts only several hundred years, with a total ice volume discharge corresponding to 5-10 m of sea level rise. In our model the simulated ice surges represent internal oscillations of the ice sheet. At the same time, our results suggest the possibility of a synchronization between instabilities of different ice sheets, as indicated in paleoclimate records. Article in Journal/Newspaper Ice Sheet Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) Geophysical Research Letters 29 24 69-1 69-4 |
institution |
Open Polar |
collection |
Hokkaido University Collection of Scholarly and Academic Papers (HUSCAP) |
op_collection_id |
fthokunivhus |
language |
English |
topic |
Glaciology Climate dynamics Paleoclimatology Heinrich event Surge 452 |
spellingShingle |
Glaciology Climate dynamics Paleoclimatology Heinrich event Surge 452 Calov, Reinhard Ganopolski, Andrey Petoukhov, Vladimir Claussen, Martin Greve, Ralf Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model |
topic_facet |
Glaciology Climate dynamics Paleoclimatology Heinrich event Surge 452 |
description |
Heinrich events, related to large-scale surges of the Laurentide ice sheet, represent one of the most dramatic types of abrupt climate change occurring during the last glacial. Here, using a coupled atmosphere-ocean-biosphere-ice sheet model, we simulate quasi-periodic large-scale surges from the Laurentide ice sheet. The average time between simulated events is about 7,000 yrs, while the surging phase of each event lasts only several hundred years, with a total ice volume discharge corresponding to 5-10 m of sea level rise. In our model the simulated ice surges represent internal oscillations of the ice sheet. At the same time, our results suggest the possibility of a synchronization between instabilities of different ice sheets, as indicated in paleoclimate records. |
format |
Article in Journal/Newspaper |
author |
Calov, Reinhard Ganopolski, Andrey Petoukhov, Vladimir Claussen, Martin Greve, Ralf |
author_facet |
Calov, Reinhard Ganopolski, Andrey Petoukhov, Vladimir Claussen, Martin Greve, Ralf |
author_sort |
Calov, Reinhard |
title |
Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model |
title_short |
Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model |
title_full |
Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model |
title_fullStr |
Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model |
title_full_unstemmed |
Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model |
title_sort |
large-scale instabilities of the laurentide ice sheet simulated in a fully coupled climate-system model |
publisher |
American Geophysical Union |
url |
http://hdl.handle.net/2115/34653 https://doi.org/10.1029/2002GL016078 |
genre |
Ice Sheet |
genre_facet |
Ice Sheet |
op_relation |
http://hdl.handle.net/2115/34653 Geophysical Research Letters, 29(24): 2216 http://dx.doi.org/10.1029/2002GL016078 |
op_rights |
An edited version of this paper was published by AGU. Copyright 2002 American Geophysical Union. |
op_doi |
https://doi.org/10.1029/2002GL016078 |
container_title |
Geophysical Research Letters |
container_volume |
29 |
container_issue |
24 |
container_start_page |
69-1 |
op_container_end_page |
69-4 |
_version_ |
1766029940449345536 |