Dynamic influence of pinning points on marine ice-sheet stability: a numerical study in Dronning Maud Land, East Antarctica [PDF]
The Cryosphere, 2016 The East Antarctic ice sheet is likely more stable than its West Antarctic counterpart because its bed is largely lying above sea level. However, the ice sheet in Dronning Maud Land, East Antarctica, contains marine sectors that are in contact with the ...
L. Favier +3 more
doaj +1 more source
Journal of Fish Biology, EarlyView.Abstract We used an ecological niche theory framework integrating physiological and behavioural ecology to understand interspecific differentiation of juveniles of four Antarctic fishes: Trematomus bernacchii, Trematomus pennellii, Trematomus nicolai and Pagothenia borchgrevinki.
Amanda J. Frazier +5 more
wiley +1 more source
Grounding-line flux formula applied as a flux condition in numerical simulations fails for buttressed Antarctic ice streams [PDF]
The Cryosphere, 2018 Currently, several large-scale ice-flow models impose a condition on ice flux across grounding lines using an analytically motivated parameterisation of grounding-line flux.
R. Reese +4 more
doaj +1 more source
Adaptation to extreme environments: A review of Antarctic fish physiology
Journal of Fish Biology, EarlyView.Abstract Having evolved in the chronically cold and thermally stable waters of the Southern Ocean (SO) for millions of years, Antarctic fish possess a suite of physiological specializations that enable them to survive at temperatures near the freezing point of seawater. Adaptations include the evolution of antifreeze proteins, modifications of membrane
Seungyeon Lee +8 more
wiley +1 more source
Millennial‐Scale Vulnerability of the Antarctic Ice Sheet to Regional Ice Shelf Collapse
Geophysical Research Letters, 2019 The Antarctic Ice Sheet (AIS) remains the largest uncertainty in projections of future sea level rise. A likely climate‐driven vulnerability of the AIS is thinning of floating ice shelves resulting from surface‐melt‐driven hydrofracture or incursion of ...
Daniel F. Martin +2 more
doaj +1 more source
The potential of marine ice cliff instability for Amundsen Sea glaciers revisited
Annals of GlaciologyMarine ice cliff instability (MICI) is the hypothesis that self-sustained retreat of ice sheets can be initiated when sufficiently tall ice cliffs are exposed.
Sainan Sun, Gudmundur Hilmar Gudmundsson
doaj +1 more source
Competing climate feedbacks of ice sheet freshwater discharge in a warming world
Nature CommunicationsFreshwater discharge from ice sheets induces surface atmospheric cooling and subsurface ocean warming, which are associated with negative and positive feedbacks respectively. However, uncertainties persist regarding these feedbacks’ relative strength and
Dawei Li +3 more
doaj +1 more source
A Three-Dimensional Model of the Antarctic Ice Sheet [PDF]
Annals of Glaciology, 1988 A preliminary version of a three-dimensional ice-sheet model for later use in climate models, but excluding ice shelves and basal sliding, is presented and applied to the Antarctic ice sheet. In the model, the three-dimensional fields of velocity and temperature are calculated in the coupled mode, and the temperature equation is integrated for 150 000 ...
openaire +2 more sources
Quantifying the feedback between Antarctic meltwater release and subsurface Southern Ocean warming [PDF]
Earth System DynamicsThe subsurface ocean around Antarctica is one of the primary drivers of mass loss from the Antarctic ice sheet through the basal melting of ice shelves.
E. Lambert +5 more
doaj +1 more source
Antarctic-wide annual ice flow maps from Landsat 8 imagery between 2013 and 2019
International Journal of Digital Earth, 2021 Ice velocity constitutes a key parameter for quantifying ice-sheet discharge rates and is thus crucial for improving the coupled models of the Antarctic ice sheet towards accurately predict its contribution to future global sea-level rise.
Qiang Shen +6 more
doaj +1 more source