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Title
  • en Large-scale instabilities of the Laurentide ice sheet simulated in a fully coupled climate-system model
Creator
    • en Calov, Reinhard
    • en Ganopolski, Andrey
    • en Petoukhov, Vladimir
    • en Claussen, Martin
Accessrights open access
Rights
  • en An edited version of this paper was published by AGU. Copyright 2002 American Geophysical Union.
Subject
  • Other en Glaciology
  • Other en Climate dynamics
  • Other en Paleoclimatology
  • Other en Heinrich event
  • Other en Surge
  • NDC 452
Description
  • Abstract en 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.
Publisher en American Geophysical Union
Date
    Issued2002-12-27
Language
  • eng
Resource Type journal article
Version Type AM
Identifier HDL http://hdl.handle.net/2115/34653
Relation
  • isVersionOf DOI https://doi.org/10.1029/2002GL016078
Journal
    • PISSN 0094-8276
      • en Geophysical Research Letters
      • Volume Number29 Issue Number24 Page Start2216
File
Oaidate 2023-07-26