Results 11 to 20 of about 16,380 (300)
Ice Streams of the Laurentide Ice Sheet [PDF]
Géographie physique et Quaternaire, 2006 Ice streams had a major influence on the configuration and the stability of the Laurentide Ice Sheet. Their identification is crucial for an understanding of ice sheet behaviour and their importance is reflected by the recent increase in paleo-ice stream research.
Winsborrow, Monica C.M. +2 more
openaire +4 more sources
Contrasting the modelled sensitivity of the Amundsen Sea Embayment ice streams [PDF]
Journal of Glaciology, 2016 Present-day mass loss from the West Antarctic ice sheet is centred on the Amundsen Sea Embayment (ASE), primarily through ice streams, including Pine Island, Thwaites and Smith glaciers.
ISABEL J. NIAS +2 more
doaj +2 more sources
Repeated ice streaming on the northwest Greenland continental shelf since the onset of the Middle Pleistocene Transition [PDF]
The Cryosphere, 2020 Ice streams provide a fundamental control on ice sheet discharge and depositional patterns along glaciated margins. This paper investigates ancient ice streams by presenting the first 3D seismic geomorphological analysis of a major glacigenic succession ...
A. M. W. Newton +4 more
doaj +1 more source
Sensitivity of the Weddell Sea sector ice streams to sub-shelf melting and surface accumulation [PDF]
The Cryosphere, 2014 A recent ocean modelling study indicates that possible changes in circulation may bring warm deep-ocean water into direct contact with the grounding lines of the Filchner–Ronne ice streams, suggesting the potential for future ice losses from this sector ...
A. P. Wright +10 more
doaj +1 more source
Radar attenuation demonstrates advective cooling in the Siple Coast ice streams
Journal of Glaciology, 2023 Ice streams are warmed by shear strain, both vertical shear near the bed and lateral shear at the margins. Warm ice deforms more easily, establishing a positive feedback loop in an ice stream where fast flow leads to warm ice and then to even faster flow.
Benjamin H. Hills +4 more
doaj +1 more source
Journal of Glaciology, 2023 The dynamics of the Greenland Ice Sheet are affected by surface meltwater reaching the base of the ice, altering ice contact with the bedrock. Lack of understanding of this evolution hampers the ability to predict the effects of increasing temperatures ...
Signe H. Larsen +5 more
doaj +1 more source
Footprint of the Baltic Ice Stream: geomorphic evidence for shifting ice stream pathways
Boreas, 2023 The Baltic Ice Stream, a large fast‐flowing sector of the last Fennoscandian Ice Sheet that occupied the present‐day Baltic Sea basin, was first conceptualized in the earliest days of glacial geological research in Scandinavia. Landform and sedimentological evidence from the terrestrial margins support the concept and numerical ice‐sheet models ...
Sarah L. Greenwood +4 more
openaire +2 more sources
The role of subtemperate slip in thermally driven ice stream margin migration [PDF]
The Cryosphere, 2018 The amount of ice discharged by an ice stream depends on its width, and the widths of unconfined ice streams such as the Siple Coast ice streams in West Antarctica have been observed to evolve on decadal to centennial timescales.
M. Haseloff +4 more
doaj +1 more source
Radar-derived bed roughness characterization of Institute and Möller ice streams, West Antarctica, and comparison with Siple Coast ice streams [PDF]
, 2007 Subglacial bed conditions exert a significant control on ice stream behavior and evolution, and can be characterized by determining bed roughness from FFT analysis of radar-imaged basal reflectors. Here we assess bed roughness across Institute and Moller
Siegert, Martin J., Bingham, Robert G.
core +1 more source
Stochastic ice stream dynamics [PDF]
Proceedings of the National Academy of Sciences, 2016 Significance Ice streams form the backbone of the flow field of ice sheets. They are known to exhibit a complex spatiotemporal dynamics, which is largely not well understood. Understanding the controls on such dynamics is crucial to sea level change projections as well as to the interpretation of paleorecords.
MANTELLI, ELISA +2 more
openaire +3 more sources