Results 11 to 20 of about 217,627 (348)
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 +7 more sources
Modeling Ice Shelf/Ocean Interaction in Antarctica: A Review [PDF]
Oceanography, 2016 The most rapid loss of ice from the Antarctic Ice Sheet is observed where ice streams flow into the ocean and begin to float, forming the great Antarctic ice shelves that surround much of the continent.
Michael S. Dinniman +5 more
doaj +7 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 +6 more sources
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
Antarctic palaeo-ice streams [PDF]
Earth-Science Reviews, 2012 We review the geomorphological, sedimentological and chronological evidence for palaeo-ice streams on the continental shelf of Antarctica and use this information to investigate basal conditions and processes, and to identify factors controlling grounding-line retreat.
Livingstone, Stephen J. +5 more
openaire +7 more sources
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
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 +2 more
core +2 more sources
Thermomechanical modelling of the Scandinavian ice sheet: implications for ice-stream formation [PDF]
, 1999 This work attempts to explain the fan-like landform assemblages observed in satellite images of the area covered by the former Scandinavian ice sheet (SIS). These assemblages have been interpreted as evidence of large ice streams within the SIS.
Baldwin, DJ, Payne, AJ
core +2 more sources