Results 41 to 50 of about 226,235 (355)

Multidecadal warming of Antarctic waters [PDF]

open access: yes, 2014
Decadal trends in the properties of seawater adjacent to Antarctica are poorly known, and the mechanisms responsible for such changes are uncertain. Antarctic ice sheet mass loss is largely driven by ice shelf basal melt, which is influenced by ocean-ice
Aoki, Shigeru   +3 more
core   +1 more source

Exploring mechanisms responsible for tidal modulation in flow of the Filchner–Ronne Ice Shelf [PDF]

open access: yes, 2020
An extensive network of GPS sites on the Filchner–Ronne Ice Shelf and adjoining ice streams shows strong tidal modulation of horizontal ice flow at a range of frequencies.
Gudmundsson, Hilmar, Rosier, Sebastian
core   +1 more source

Past ice sheet–seabed interactions in the northeastern Weddell Sea embayment, Antarctica [PDF]

open access: yesThe Cryosphere, 2020
The Antarctic ice sheet extent in the Weddell Sea embayment (WSE) during the Last Glacial Maximum (LGM; ca. 19–25 calibrated kiloyears before present, ka cal BP) and its subsequent retreat from the shelf are poorly constrained, with two ...
J. E. Arndt   +7 more
doaj   +1 more source

Response of Pacific-sector Antarctic ice shelves to the El Niño/Southern Oscillation. [PDF]

open access: yes, 2018
Satellite observations over the past two decades have revealed increasing loss of grounded ice in West Antarctica, associated with floating ice shelves that have been thinning.
Adusumilli, S   +5 more
core   +1 more source

Modelling the influence of marine ice on the dynamics of an idealised ice shelf

open access: yesJournal of Glaciology, 2023
Understanding the dynamic behaviour of ice shelves, specifically the controls on their ability to buttress the flow of ice into the ocean, is critical for predicting future ice-sheet contributions to sea level rise.
Lisa Craw   +4 more
doaj   +1 more source

Ice Island Calvings and Ice Shelf Changes, Milne Ice Shelf and Ayles Ice Shelf, Ellesmere Island, N.W.T. [PDF]

open access: yesARCTIC, 1986
Analysis of vertical air photographs taken in 1959 and 1974 reveals that a total of 48 sq km, involving 3.3 cubic km, of ice calved from Milne and Ayles ice shelves between July 1959 and July 1974. In addition, Ayles Ice Shelf moved to about 5 km out of Ayles Fiord. It still occupied this exposed position in July 1984. The ice losses and movements have
openaire   +1 more source

Modeling ice‐ocean interaction in ice‐shelf crevasses [PDF]

open access: yesJournal of Geophysical Research: Oceans, 2014
AbstractOcean freezing within ice‐shelf basal crevasses could potentially act as a stabilizing influence on ice shelves; however, ice‐ocean interaction and ocean dynamics within these crevasses are as yet poorly understood. To this end, an idealized 2‐D model of an ice‐shelf basal crevasse has been developed using Fluidity, a finite‐element ocean model
Jordan, J.R.   +4 more
openaire   +5 more sources

Response to Filchner–Ronne Ice Shelf cavity warming in a coupled ocean–ice sheet model – Part 1: The ocean perspective [PDF]

open access: yesOcean Science, 2017
The Regional Antarctic ice and Global Ocean (RAnGO) model has been developed to study the interaction between the world ocean and the Antarctic ice sheet. The coupled model is based on a global implementation of the Finite Element Sea-ice Ocean Model (
R. Timmermann, S. Goeller, S. Goeller
doaj   +1 more source

Ice-Ocean Interaction On Ronne Ice Shelf, Antarctica [PDF]

open access: yesAnnals of Glaciology, 1990
A detailed glaciological study of Ronne Ice Shelf has been undertaken along a flowline extending from Rutford Ice Stream grounding line to the ice front. Measurements of velocity, surface elevation, ice thickness, surface temperature and accumulation rate have been made at a total of 28 sites; at 17 of these ice deformation rates are also known ...
Jenkins, Adrian, Doake, C. S. M.
openaire   +2 more sources

Formation of sea ice ponds from ice-shelf runoff, adjacent to the McMurdo Ice Shelf, Antarctica

open access: yesAnnals of Glaciology, 2020
Ponds that form on sea ice can cause it to thin or break-up, which can promote calving from an adjacent ice shelf. Studies of sea ice ponds have predominantly focused on Arctic ponds formed by in situ melting/ponding.
Grant J. Macdonald   +2 more
doaj   +1 more source

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