Modelling of Last Glacial Maximum ice sheets using different accumulation parameterizations
نویسندگان
چکیده
منابع مشابه
Ice sheets and sea level of the Last Glacial Maximum
This paper outlines the general issues regarding ice sheets and sea level of the Last Glacial Maximum (LGM), which formed the basis of an EPILOG Project workshop. Papers in this special issue of Quaternary Science Reviews provide a comprehensive assessment of these issues from the perspective of geological reconstructions of ice sheet extent, records of sea-level change, ice sheet modelling, ge...
متن کاملSea Ice and Dynamical Controls on Preindustrial and Last Glacial Maximum Accumulation in Central Greenland
Greenland has experienced large changes since the last glacial with its summit warming by approximately 218C, average accumulation rates tripling, and annual amplitudes of temperature and accumulation seemingly declining. The altered seasonal cycle of accumulation has been attributed to a combination of the large-scale dynamical response of the North Atlantic storm track to surface boundary con...
متن کاملThe Last Glacial Maximum.
We used 5704 14C, 10Be, and 3He ages that span the interval from 10,000 to 50,000 years ago (10 to 50 ka) to constrain the timing of the Last Glacial Maximum (LGM) in terms of global ice-sheet and mountain-glacier extent. Growth of the ice sheets to their maximum positions occurred between 33.0 and 26.5 ka in response to climate forcing from decreases in northern summer insolation, tropical Pac...
متن کاملGlobal glacial ice volume and Last Glacial Maximum duration from an extended Barbados sea level record
Fundamental characteristics of the climate system during the most recent precessional cycle of the Earth’s orbit around the Sun consist of the final expansion of land ice to its maximum extent, the subsequent episode of deglaciation, and the variations of global sea level that accompanied these events. In order to address the important issue of the variation of continental ice volume and relate...
متن کاملNumerical reconstructions of the Northern Hemisphere ice sheets through the last glacial-interglacial cycle
A 3-dimensional thermo-mechanical ice-sheet model is used to simulate the evolution of the Northern Hemisphere ice sheets through the last glacial-interglacial cycle. The ice-sheet model is forced by the results from six different atmospheric general circulation models (AGCMs). The climate evolution over the period under study is reconstructed using two climate equilibrium simulations performed...
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ژورنال
عنوان ژورنال: Annals of Glaciology
سال: 1997
ISSN: 0260-3055,1727-5644
DOI: 10.3189/s0260305500012210