Results 11 to 20 of about 12,214 (254)
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 +9 more sources
Journal of Glaciology, 2021 Drag at the bed and along the lateral margins are the primary forces resisting flow in outlet glaciers. Simultaneously inferring these parameters is challenging since basal drag and ice viscosity are coupled in the momentum balance, which governs ice ...
Meghana Ranganathan +3 more
doaj +3 more sources
Contrasting the modelled sensitivity of the Amundsen Sea Embayment ice streams
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 +3 more sources
Reviews of Geophysics, 1977 Solar heat is the acknowledged driving force for climatic change. However, ice sheets are also capable of causing climatic change. This property of ice sheets derives from the facts that ice and rock are crystalline whereas the oceans and atmosphere are fluids and that ice sheets are massive enough to depress the earth's crust well below sea level ...
openaire +5 more sources
Subglacial hydrology and the formation of ice streams. [PDF]
Proc Math Phys Eng Sci, 2014 Kyrke-Smith TM, Katz RF, Fowler AC.
europepmc +2 more sources
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
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
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
Speed-up, slowdown, and redirection of ice flow on neighbouring ice streams in the Pope, Smith, and Kohler region of West Antarctica [PDF]
The CryosphereThe ice streams feeding the Dotson and Crosson ice shelves are some of the fastest changing in West Antarctica. We use satellite observations to measure the change in ice speed and flow direction on eight ice streams in the Pope, Smith, and Kohler region
H. L. Selley +4 more
doaj +1 more source
Formation of ribbed bedforms below shear margins and lobes of palaeo-ice streams [PDF]
The Cryosphere, 2021 Conceptual ice stream land systems derived from geomorphological and sedimentological observations provide constraints on ice–meltwater–till–bedrock interactions on palaeo-ice stream beds. Within these land systems, the spatial distribution and formation
J. Vérité +9 more
doaj +1 more source