Abrupt Climate Shifts in Greenland Due to Displacements of the Sea Ice Edge

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Abrupt Climate Shifts in Greenland Due to Displacements of the Sea Ice Edge

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dc.contributor.author Li, Camille
dc.contributor.author Battisti, David S.
dc.contributor.author Tziperman, Eli
dc.contributor.author Schrag, Daniel P.
dc.date.accessioned 2009-12-08T18:44:41Z
dc.date.issued 2005
dc.identifier.citation Li, Camille, David S. Battisti, Daniel P. Schrag, and Eli Tziperman. 2005. Abrupt climate shifts in Greenland due to displacements of the sea ice edge. Geophysical Research Letters, 32(L19702): 1-4. en_US
dc.identifier.issn 0094-8276 en_US
dc.identifier.uri http://nrs.harvard.edu/urn-3:HUL.InstRepos:3441489
dc.description.abstract An atmospheric circulation model is used to show that a reduction in sea ice extent in the North Atlantic produces a climatic response consistent with abrupt changes in temperature and snow accumulation recorded in Greenland during the Dansgaard-Oeschger (D-O) events of the last glacial period. The model simulations exhibit warming that is especially pronounced in winter and an accumulation increase that occurs primarily in summer, though the fractional accumulation increase is greater in winter. The seasonality of the combined temperature and accumulation changes is also consistent with the oxygen isotope signal, explaining why estimates of the magnitude of D-O warming from oxygen isotopes are damped relative to direct estimates. Mechanisms for driving such displacements of sea ice could be changes in ocean thermohaline circulation (OTC) or rearrangements of the tropical atmosphere-ocean system. en_US
dc.description.sponsorship Earth and Planetary Sciences en_US
dc.language.iso en_US en_US
dc.publisher American Geophysical Union en_US
dc.relation.isversionof http://dx.doi.org/10.1029/2005GL023492 en_US
dc.relation.hasversion http://folk.uib.no/People/cli061/pdfs/grl2005.pdf
dash.license META_ONLY
dc.title Abrupt Climate Shifts in Greenland Due to Displacements of the Sea Ice Edge en_US
dc.type Journal Article en_US
dc.description.version Version of Record en_US
dc.relation.journal Geophysical Research Letters en_US
dash.depositing.author Tziperman, Eli
dash.embargo.until 10000-01-01

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  • FAS Scholarly Articles [7470]
    Peer reviewed scholarly articles from the Faculty of Arts and Sciences of Harvard University

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