Results 51 to 60 of about 19,515,932 (251)

Subglacial processes on an Antarctic ice stream bed. 1: Sediment transport and bedform genesis inferred from marine geophysical data

Journal of Glaciology, 2016
The spatial pattern and morphometry of bedforms and their relationship to sediment thickness have been analysed in the Marguerite Bay Palaeo-ice stream Trough, western Antarctic Peninsula.
S. Livingstone, C. Stokes, C. Ó Cofaigh, C. Hillenbrand, A. Vieli, S. Jamieson, M. Spagnolo, J. Dowdeswell   +7 more
semanticscholar   +1 more source

Evolution of drainage system morphology at a land-terminating Greenland outlet glacier [PDF]

, 2012
This work was funded by the UK Natural Environment Research Council (through grants to Nienow, Mair, and Wadham, and a studentship to Bartholomew), the Edinburgh University Moss Centenary Scholarship (Cowton and Bartholomew), and a Carnegie Research ...
Alley, Bartholomaus, Bartholomew, Bartholomew, Bartholomew, Bartholomew, Behrens, Bhatia, Bingham, Collins, Collins, Cowton, Cuffey, Das, Fountain, Fountain, Fountain, Gulley, Hock, Hock, Hoffman, Howat, Hubbard, Hubbard, Iken, Iken, Iken, Kamb, Kamb, Lewis, Lliboutry, Mair, Mair, Nienow, Nienow, Palmer, Pimentel, Rignot, Röthlisberger, Schoof, Schuler, Schuler, Seaberg, Sole, Sundal, Swift, Veen, Wal, Walder, Werder, Willis, Willis, Zwally   +52 more
core   +3 more sources

Effects of basal topography and ice-sheet surface slope in a subglacial glaciofluvial deposition model

Journal of Glaciology, 2023
We use a mathematical model to investigate the effect of basal topography and ice surface slope on transport and deposition of sediment within a water-filled subglacial channel. In our model, three zones of different behaviour occur. In the zone furthest
David Stevens, Jeremy C. Ely, Stephen J. Livingstone, Chris D. Clark, Frances E. G. Butcher, Ian Hewitt   +5 more
doaj   +1 more source

Meltwater Intrusions Reveal Mechanisms for Rapid Submarine Melt at a Tidewater Glacier [PDF]

, 2019
Submarine melting has been implicated as a driver of glacier retreat and sea level rise, but to date melting has been difficult to observe and quantify. As a result, melt rates have been estimated from parameterizations that are largely unconstrained by ...
Amundson, Jason M., Jackson, R. H., Kienholtz, C., Motyka, R. J., Nash, J. D., Pettit, E. C., Skyllingstad, E., Sutherland, D. A., Winters, D.   +8 more
core   +1 more source

Ice stream subglacial access for ice-sheet history and fast ice flow: the BEAMISH Project on Rutford Ice Stream, West Antarctica and initial results on basal conditions

Annals of Glaciology, 2021
Three holes were drilled to the bed of Rutford Ice Stream, through ice up to 2154 m thick, to investigate the basal processes and conditions associated with fast ice flow and the glacial history of the West Antarctic Ice Sheet.
A. M. Smith, P. G. D. Anker, K. W. Nicholls, K. Makinson, T. Murray, S. Rios-Costas, A. M. Brisbourne, D. A. Hodgson, R. Schlegel, S. Anandakrishnan   +9 more
doaj   +1 more source

Influence of subglacial drainage system evolution on glacier surface motion: Haut Glacier d'Arolla, Switzerland [PDF]

, 2002
The relationship between the evolution of subglacial drainage system morphology and spatial patterns of glacier surface velocity was investigated using dye tracing experiments and ground surveying throughout the 1995 melt season at Haut Glacier d'Arolla,
Balise, Boulton, Burkimsher, Douglas Mair, Fountain, Fountain, Gordon, Gordon, Hanson, Hock, Hooke, Hubbard, Humphrey, Iken, Iken, Iken, Johnston, Kamb, Kamb, Lliboutry, Mair, Nienow, Peixoto, Ramsay, Richards, Röthlisberger, Sharp, Truffer, Walder, Willis   +29 more
core   +1 more source

Englacial Pore Water Localizes Shear in Temperate Ice Stream Margins [PDF]

, 2019
The margins of fast‐moving ice streams are characterized by steep velocity gradients. Some of these gradients cannot be explained by a temperature‐dependent viscosity alone.
Haseloff, Marianne, Hewitt, I. J., Katz, R. F.   +2 more
core   +2 more sources

Seismic characterization of a rapidly-rising jökulhlaup cycle at the A.P. Olsen Ice Cap, NE-Greenland

Journal of Glaciology, 2020
Rapidly-rising jökulhlaups, or glacial outburst floods, are a phenomenon with a high potential for damage. The initiation and propagation processes of a rapidly-rising jökulhlaup are still not fully understood.
Michael Behm, Jacob I. Walter, Daniel Binder, Feng Cheng, Michele Citterio, Bernd Kulessa, Kirsty Langley, Phillipe Limpach, Stefan Mertl, Wolfgang Schöner, Mikkel Tamstorf, Gernot Weyss   +11 more
doaj   +1 more source

Supraglacial forcing of subglacial drainage in the ablation zone of the Greenland ice sheet [PDF]

, 2011
Peer reviewedPublisher ...
Alley, Andrew Sole, Bartholomew, Box, Catania, Collins, Das, Douglas Mair, Fenn, Hock, Ian Bartholomew, Jemma Wadham, Kamb, McMillan, Nienow, Palmer, Parizek, Peter Nienow, Pfeffer, Pimentel, Schoof, Shepherd, Shreve, Skidmore, Steven Palmer, Sundal, Sundal, Swift, Thomas Cowton, Van de Wal, van der Veen, Zwally   +31 more
core   +4 more sources

Radio-Echo Sounding Over Polar Ice Masses [PDF]

, 2007
Peer reviewedPublisher ...
Bingham, Robert G., Siegert, Martin J.
core   +1 more source