Results 61 to 70 of about 226,235 (355)
Simulating ice-shelf extent using damage mechanics
Journal of Glaciology, 2022 Inaccurate representations of iceberg calving from ice shelves are a large source of uncertainty in mass-loss projections from the Antarctic ice sheet. Here, we address this limitation by implementing and testing a continuum damage-mechanics model in a ...
Samuel B. Kachuck +4 more
doaj +1 more source
Getz Ice Shelf melt enhanced by freshwater discharge from beneath the West Antarctic Ice Sheet [PDF]
The Cryosphere, 2020 Antarctica's Getz Ice Shelf has been rapidly thinning in recent years, producing more meltwater than any other ice shelf in the world. The influx of fresh water is known to substantially influence ocean circulation and biological productivity, but ...
W. Wei +12 more
doaj +1 more source
The effect of buttressing on grounding line dynamics [PDF]
, 2018 Determining the position and stability of the grounding line of a marine ice sheet is a major challenge for ice-sheet models. Here, we investigate the role of lateral shear and ice-shelf buttressing in grounding line dynamics by extending an existing ...
Haseloff, Marianne, Sergienko, Olga V.
core +2 more sources
Ephemeral grounding on the Pine Island Ice Shelf, West Antarctica, from 2014–2023 [PDF]
The CryosphereEphemeral grounding refers to the intermittent contact between an ice shelf and elevated seafloor features. The evolution of ephemeral grounding of an ice shelf can affect buttressing, alter ice flow dynamics, and influence ice shelf stability. Long-term
Y. Chien +15 more
doaj +1 more source
On the coupled response to ice-shelf basal melting [PDF]
, 2012 Ice-shelf basal melting is tightly coupled to ice-shelf morphology. Ice shelves, in turn, are coupled to grounded ice via their influence on compressive stress at the grounding line ('ice-shelf buttressing').
Anand Gnanadesikan +6 more
core +2 more sources
Remote Sensing, 2023 The Cook Glacier drains a significant portion of the Wilkes Subglacial Basin, the largest subglacial basin in East Antarctica—which feeds the Cook Ice Shelf.
Siung Lee +3 more
doaj +1 more source
Representation of sharp rifts and faults mechanics in modeling ice shelf flow dynamics: Application to Brunt/Stancomb-Wills Ice Shelf, Antarctica [PDF]
, 2014 Ice shelves play a major role in buttressing ice sheet flow into the ocean, hence the importance of accurate numerical modeling of their stress regime. Commonly used ice flow models assume a continuous medium and are therefore complicated by the presence
Borstad, C. P. +5 more
core +1 more source
Journal of Glaciology, 2022 Mass loss from ice shelves is a strong control on grounding-line dynamics. Here we investigate how calving and submarine melt parameterizations affect steady-state grounding-line positions and their stability.
Marianne Haseloff, Olga V. Sergienko
doaj +1 more source
Diagnosing the sensitivity of grounding-line flux to changes in sub-ice-shelf melting [PDF]
The Cryosphere, 2020 Using a numerical ice flow model, we study changes in ice shelf buttressing and grounding-line flux due to localized ice thickness perturbations, a proxy for localized changes in sub-ice-shelf melting. From our experiments, applied to idealized (MISMIP+)
T. Zhang +4 more
doaj +1 more source
The Grounding of an Ice Shelf in the Central Arctic Ocean: A Modeling Experiment [PDF]
, 2003 A numerical ice sheet model was used in a first test towards evaluating the hypothesis that, during a period of large-scale glaciation, an ice shelf emanating from the Barents/Kara Seas grounded across parts of the Lomonosov Ridge to a depth of around ...
Jakobsson, Martin +2 more
core +1 more source