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Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model

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タイトル: Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model
著者: Calov, Reinhard 著作を一覧する
Ganopolski, Andrey 著作を一覧する
Petoukhov, Vladimir 著作を一覧する
Claussen, Martin 著作を一覧する
Greve, Ralf 著作を一覧する
キーワード: Glaciology
Climate dynamics
Paleoclimatology
Heinrich event
Surge
発行日: 2002年12月27日
出版者: American Geophysical Union
誌名: Geophysical Research Letters
巻: 29
号: 24
開始ページ: 2216
出版社 DOI: 10.1029/2002GL016078
抄録: 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.
Rights: An edited version of this paper was published by AGU. Copyright 2002 American Geophysical Union.
資料タイプ: article (author version)
URI: http://hdl.handle.net/2115/34653
出現コレクション:雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

提供者: Greve Ralf

 

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