Results 21 to 30 of about 217,627 (348)

A geomorphological overview of glacial landforms on the Icelandic continental shelf [PDF]

open access: yes, 2009
The availability of a bathymetric database that covers about 80% of the Icelandic shelf has made it possible to produce a geomorphological map of the glacial landforms.
Clark, C.D., Spagnolo, M.
core   +5 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]

open access: yesThe Cryosphere
The 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]

open access: yesThe 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

Subglacial sediments: A regional geological template for ice flow in West Antarctica [PDF]

open access: yes, 2001
We use aerogeophysical data to estimate the distribution of marine subglacial sediments and fault“bounded sedimentary basins beneath the West Antarctic Ice Sheet (WAIS).
Arko, Robert A.   +6 more
core   +2 more sources

Significant groundwater contribution to Antarctic ice streams hydrologic budget [PDF]

open access: yes, 2014
Satellite observations have revealed active hydrologic systems beneath Antarctic ice streams, but sources and sinks of water within these systems are uncertain. Here we use numerical simulations of ice streams to estimate the generation, flux, and budget
Bougamont, M   +4 more
core   +1 more source

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

open access: yesCommunications 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   +12 more
doaj   +1 more source

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

open access: yesThe 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   +7 more
doaj   +1 more source

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

open access: yesThe 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   +6 more
doaj   +1 more source

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

open access: yesJournal 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   +3 more
doaj   +1 more source

Ice stream formation

open access: yes, 2021
<div>Ice streams are the arteries through which a large fraction of the ice lost from Antarctica is discharged. With the introduction of "higher order" mechanics, the representation of ice streams in ice sheet models appears to have become more robust, eliminating previously ubiquitous grid effects.
Christian Schoof, Elisa Mantelli
openaire   +2 more sources

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