Results 41 to 50 of about 771,010 (290)

A thicker Antarctic ice stream during the mid-Pliocene warm period

Communications Earth & Environment, 2023
Ice streams regulate most ice mass loss in Antarctica. Determining ice stream response to warmer conditions during the Pliocene could provide insights into their future behaviour, but this is hindered by a poor representation of subglacial topography in ...
Martim Mas e Braga, Richard S. Jones, Jorge Bernales, Jane Lund Andersen, Ola Fredin, Mathieu Morlighem, Alexandria J. Koester, Nathaniel A. Lifton, Jonathan M. Harbor, Yusuke Suganuma, Neil F. Glasser, Irina Rogozhina, Arjen P. Stroeven   +12 more
doaj   +1 more source

Ocean-forced evolution of the Amundsen Sea catchment, West Antarctica, by 2100 [PDF]

The Cryosphere, 2020
The response of ice streams in the Amundsen Sea Embayment (ASE) to future climate forcing is highly uncertain. Here we present projections of 21st century response of ASE ice streams to modelled local ocean temperature change using a subset of Coupled ...
A. V. Alevropoulos-Borrill, A. V. Alevropoulos-Borrill, I. J. Nias, I. J. Nias, I. J. Nias, A. J. Payne, N. R. Golledge, R. J. Bingham   +7 more
doaj   +1 more source

Modelling dynamic ice-sheet boundaries and grounding line migration using the level set method

Journal of Glaciology, 2020
Computing predictions of future sea level that include well-defined uncertainty bounds requires models that are capable of robustly simulating the evolution of ice sheets and glaciers.
M. Alamgir Hossain, Sam Pimentel, John M. Stockie   +2 more
doaj   +1 more source

Sensitivity of the Ross Ice Shelf to environmental and glaciological controls [PDF]

The Cryosphere, 2022
The Ross Ice Shelf (RIS) is currently stable but recent observations have indicated that basal melt rates beneath the ice shelf are expected to increase.
F. Baldacchino, M. Morlighem, M. Morlighem, N. R. Golledge, H. Horgan, A. Malyarenko, A. Malyarenko   +6 more
doaj   +1 more source

Stream hydrology controls on ice cliff evolution and survival on debris-covered glaciers [PDF]

Earth Surface Dynamics
Ice cliffs are melt hot spots that contribute disproportionately to melt on debris-covered glaciers. In this study, we investigate the impact of supraglacial stream hydrology on ice cliffs using in situ and remote sensing observations, streamflow ...
E. Petersen, R. Hock, R. Hock, M. G. Loso   +3 more
doaj   +1 more source

Range of 21st century ice mass changes in the Filchner-Ronne region of Antarctica

Journal of Glaciology, 2023
Increases in ocean temperatures in the Filchner Ronne region of Antarctica are likely to result in increased ice mass loss and sea level rise. We constrain projections of the 21st century sea level contribution of this region using process-based ice ...
Andrew Johnson, Andy Aschwanden, Torsten Albrecht, Regine Hock   +3 more
doaj   +1 more source

Of isbræ and ice streams [PDF]

Annals of Glaciology, 2003
AbstractFast-flowing ice streams and outlet glaciers provide the major avenues for ice flow from past and present ice sheets. These ice streams move faster than the surrounding ice sheet by a factor of 100 or more. Several mechanisms for fast ice-stream flow have been identified, leading to a spectrum of different ice-stream types.
Martin Truffer, Keith A. Echelmeyer
openaire   +1 more source

The role of near-terminus conditions in the ice-flow speed of Upernavik Isstrøm in northwest Greenland

Annals of Glaciology, 2023
Upernavik Isstrøm, the largest contributor to sea-level rise in northwest Greenland, has experienced complex and contrasting ice-flow-speed changes across its five outlets over the last two decades.
Kelsey M. Voss, Karen E. Alley, David A. Lilien, Dorthe Dahl-Jensen   +3 more
doaj   +1 more source

Deformation in Rutford Ice Stream, West Antarctica: measuring shear-wave anisotropy from icequakes [PDF]

, 2013
Ice streams provide major drainage pathways for the Antarctic ice sheet. The stress distribution and style of flow in such ice streams produce elastic and rheological anisotropy, which informs ice-flow modelling as to how ice masses respond to external
Baird, A.F., Smith, A.M., Baird, A F, Stuart, G.W., Harland, S. R., Stuart, G. W., Kendall, J-M, Pritchard, H.D., Harland, S.R., Smith, A. M., Pritchard, H. D., Kendall, J.-M., Brisbourne, A.M., Brisbourne, A. M., Lloyd, G.E., Lloyd, G. E.   +15 more
core   +1 more source

The last glaciation of Shetland : local ice cap or invasive ice sheet? [PDF]

, 2014
Issue ISBN: 978-82-92-39488-5 This work is supported by the Carnegie Trust for the Universities of ScotlandThe question of whether the Shetland Islands were covered by an ice cap or by an ice sheet during the last glacial cycle (40–10 ka) remains ...
Hall, A. M.
core   +2 more sources