Results 71 to 80 of about 917,323 (294)

Necessary Conditions for Warm Inflow Toward the Filchner Ice Shelf, Weddell Sea

open access: yesGeophysical Research Letters, 2020
Understanding changes in Antarctic ice shelf basal melting is a major challenge for predicting future sea level. Currently, warm Circumpolar Deep Water surrounding Antarctica has limited access to the Weddell Sea continental shelf; consequently, melt ...
K. Daae   +6 more
semanticscholar   +1 more source

Ice Shelf Water plume flow beneath Filchner‐Ronne Ice Shelf, Antarctica [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2007
A two‐dimensional plume model is used to study the interaction between Filchner‐Ronne Ice Shelf, Antarctica and its underlying ocean cavity. Ice Shelf Water (ISW) plumes are initiated by the freshwater released from a melting ice shelf and, if they rise, may become supercooled and deposit marine ice due to the pressure increase in the in situ freezing ...
Daniel Feltham   +3 more
openaire   +4 more sources

The northern sector of the last British ice sheet : maximum extent and demise [PDF]

open access: yes, 2008
Strongly divided opinion has led to competing, apparently contradictory, views on the timing, extent, flow configuration and decay mechanism of the last British Ice Sheet.
Bradwell, Tom   +11 more
core   +2 more sources

Calving cycle of the Brunt Ice Shelf, Antarctica, driven by changes in ice-shelf geometry [PDF]

open access: yesThe Cryosphere, 2019
Abstract. Despite the potentially detrimental impact of large-scale calving events on the geometry and ice flow of the Antarctic Ice Sheet, little is known about the processes that drive rift formation prior to calving, or what controls the timing of these events.
Jan De Rydt   +3 more
openaire   +4 more sources

Ice Velocity Variations of the Cook Ice Shelf, East Antarctica, from 2017 to 2022 from Sentinel-1 SAR Time-Series Offset Tracking

open access: yesRemote 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

Multidecadal Basal Melt Rates and Structure of the Ross Ice Shelf, Antarctica, Using Airborne Ice Penetrating Radar

open access: yesJournal of Geophysical Research: Earth Surface, 2020
Basal melting of ice shelves is a major source of mass loss from the Antarctic Ice Sheet. In situ measurements of ice shelf basal melt rates are sparse, while the more extensive estimates from satellite altimetry require precise information about firn ...
I. Das   +11 more
semanticscholar   +1 more source

Frazil ice formation in an ice shelf water plume [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2004
We present a model for the growth of frazil ice crystals and their accumulation as marine ice at the base of Antarctic ice shelves. The model describes the flow of buoyant water upward along the ice shelf base and includes the differential growth of a range of crystal sizes.
Adrian Jenkins   +2 more
openaire   +5 more sources

Effects of calving and submarine melting on steady states and stability of buttressed marine ice sheets

open access: yesJournal 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

The effect of buttressing on grounding line dynamics [PDF]

open access: yes, 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

Simulating ice-shelf extent using damage mechanics

open access: yesJournal 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

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