Title |
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Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model
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Accessrights |
open access |
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An edited version of this paper was published by AGU. Copyright 2002 American Geophysical Union.
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Subject |
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Other
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Glaciology
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Other
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Climate dynamics
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Other
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Paleoclimatology
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Other
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Heinrich event
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Other
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Surge
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NDC
452
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Description |
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Abstract
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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.
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Publisher |
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American Geophysical Union
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Date |
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Language |
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Resource Type |
journal article |
Version Type |
AM |
Identifier |
HDL
http://hdl.handle.net/2115/34653
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Relation |
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DOI
https://doi.org/10.1029/2002GL016078
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Journal |
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Geophysical Research Letters
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Volume Number29
Issue Number24
Page Start2216
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File |
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Oaidate |
2023-07-26 |