Ice stream influence on West Greenland Ice Sheet dynamics during the Last Glacial Maximum

2009 ◽  
Vol 25 (6) ◽  
pp. 850-864 ◽  
Author(s):  
David H. Roberts ◽  
Antony J. Long ◽  
Bethan J. Davies ◽  
Matthew J. R. Simpson ◽  
Christoph Schnabel
Keyword(s):  
Last Glacial Maximum ◽  
Ice Sheet ◽  
Greenland Ice Sheet ◽  
Glacial Maximum ◽  
West Greenland ◽  
Last Glacial ◽  
Ice Stream ◽  
Ice Sheet Dynamics ◽  
The Last Glacial Maximum ◽  
The Last Glacial

scholarly journals Interlobate ice-sheet dynamics during the Last Glacial Maximum at Whitburn Bay, County Durham, England

Boreas ◽  
2009 ◽  
Vol 38 (3) ◽  
pp. 555-578 ◽  
Author(s):  
BETHAN J. DAVIES ◽  
DAVID H. ROBERTS ◽  
COLM Ó COFAIGH ◽  
DAVID R. BRIDGLAND ◽  
JAMES B. RIDING ◽  
...  
Keyword(s):  
Last Glacial Maximum ◽  
Ice Sheet ◽  
Glacial Maximum ◽  
Last Glacial ◽  
Ice Sheet Dynamics ◽  
The Last Glacial Maximum ◽  
The Last Glacial

scholarly journals Ice-age ice-sheet rheology: constraints from the Last Glacial Maximum form of the Laurentide ice sheet

2000 ◽  
Vol 30 ◽  
pp. 163-176 ◽  
Author(s):  
W. Richard Peltier ◽  
David L. Goldsby ◽  
David L. Kohlstedt ◽  
Lev Tarasov
Keyword(s):  
Last Glacial Maximum ◽  
Ice Sheet ◽  
Greenland Ice Sheet ◽  
Glacial Maximum ◽  
Ice Age ◽  
Laurentide Ice Sheet ◽  
Last Glacial ◽  
Flow Law ◽  
The Last Glacial Maximum ◽  
The Last Glacial

AbstractState-of-the-art thermomechanical models of the modern Greenland ice sheet and the ancient Laurentide ice sheet that covered Canada at the Last Glacial Maximum (LGM) are not able to explain simultaneously the observed forms of these cryospheric structures when the same, anisotropy-enhanced, version of the conventional Glen flow law is employed to describe their rheology. The LGM Laurentide ice sheet, predicted to develop in response to orbital climate forcing, is such that the ratio of its thickness to its horizontal extent is extremely large compared to the aspect ratio inferred on the basis of surface-geomorphological and solid-earth-geophysical constraints. We show that if the Glen flow law representation of the rheology is replaced with a new rheology based upon very high quality laboratory measurements of the stress-strain-rate relation then the aspect ratios of both the modern Greenland ice sheet and the Laurentide ice sheet, that existed at the LGM, are simultaneously explained with little or no retuning of the flow law.

scholarly journals Controls upon the Last Glacial Maximum deglaciation of the northern Uummannaq Ice Stream System, West Greenland

2014 ◽  
Vol 92 ◽  
pp. 324-344 ◽  
Author(s):  
Timothy P. Lane ◽  
David H. Roberts ◽  
Brice R. Rea ◽  
Colm Ó Cofaigh ◽  
Andreas Vieli ◽  
...  
Keyword(s):  
Last Glacial Maximum ◽  
Glacial Maximum ◽  
West Greenland ◽  
Last Glacial ◽  
Ice Stream ◽  
Stream System ◽  
The Last Glacial Maximum ◽  
The Last Glacial

10Be ages from central east Greenland constrain the extent of the Greenland ice sheet during the Last Glacial Maximum

2007 ◽  
Vol 26 (19-21) ◽  
pp. 2316-2321 ◽  
Author(s):  
Lena Håkansson ◽  
Jason Briner ◽  
Helena Alexanderson ◽  
Ala Aldahan ◽  
Göran Possnert
Keyword(s):  
Last Glacial Maximum ◽  
Ice Sheet ◽  
Greenland Ice Sheet ◽  
Glacial Maximum ◽  
East Greenland ◽  
Last Glacial ◽  
The Last Glacial Maximum ◽  
The Last Glacial

The deglacial history of southeast sector of the Greenland Ice Sheet during the Last Glacial Maximum

2008 ◽  
Vol 27 (15-16) ◽  
pp. 1505-1516 ◽  
Author(s):  
David H. Roberts ◽  
Antony J. Long ◽  
Christoph Schnabel ◽  
Stewart Freeman ◽  
Matthew J.R. Simpson
Keyword(s):  
Last Glacial Maximum ◽  
Ice Sheet ◽  
Greenland Ice Sheet ◽  
Glacial Maximum ◽  
Last Glacial ◽  
History Of ◽  
The Last Glacial Maximum ◽  
The Last Glacial
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