Results 31 to 40 of about 856,577 (241)
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 +7 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
Potential subglacial lake locations and meltwater drainage pathways beneath the Antarctic and Greenland ice sheets [PDF]
, 2013 We use the Shreve hydraulic potential equation as a simplified approach to investigate potential subglacial lake locations and meltwater drainage pathways beneath the Antarctic and Greenland ice sheets. We validate the method by demonstrating its ability
Clark, Chris +13 more
core +2 more sources
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 +2 more
doaj +1 more source
Stream hydrology controls on ice cliff evolution and survival on debris-covered glaciers [PDF]
Earth Surface DynamicsIce 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 +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 +3 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 +6 more
doaj +1 more source
Of isbræ and ice streams [PDF]
Annals of Glaciology, 2003 Abstract Fast-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
Streamlined hard beds formed by palaeo-ice streams: a review [PDF]
, 2015 Fast-flowing ice streams occur within modern ice sheets and also operated in Pleistocene ice sheets. The reconstruction of palaeo-ice streams normally relies on the mapping of mega-scale glacial lineations (MSGLs) and drumlins composed of soft sediment ...
Putkinen, Niko +4 more
core +1 more source
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 +3 more
doaj +1 more source