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| Titel |
Brief communication "Can recent ice discharges following the Larsen-B ice-shelf collapse be used to infer the driving mechanisms of millennial-scale variations of the Laurentide ice sheet?" |
| VerfasserIn |
J. Álvarez-Solas, A. Robinson, C. Ritz |
| Medientyp |
Artikel
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| Sprache |
Englisch
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| ISSN |
1994-0416
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| Digitales Dokument |
URL |
| Erschienen |
In: The Cryosphere ; 6, no. 3 ; Nr. 6, no. 3 (2012-06-27), S.687-693 |
| Datensatznummer |
250003600
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| Publikation (Nr.) |
 copernicus.org/tc-6-687-2012.pdf |
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| Zusammenfassung |
| The effects of an ice-shelf
collapse on inland glacier dynamics have recently been widely studied,
especially since the breakup of the Antarctic Peninsula's Larsen-B ice shelf
in 2002. Several studies have documented acceleration of the ice streams that
were flowing into the former ice shelf. The mechanism responsible for such a
speed-up lies with the removal of the ice-shelf backforce. Independently, it
is also well documented that during the last glacial period, the Northern
Hemisphere ice sheets experienced large discharges into the ocean, likely
reflecting ice flow acceleration episodes on the millennial time scale. The
classic interpretation of the latter is based on the existence of an internal
thermo-mechanical feedback with the potential to generate oscillatory
behavior in the ice sheets. Here we would like to widen the debate by
considering that Larsen-B-like glacial analog episodes could have
contributed significantly to the registered millennial-scale variablity. |
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