Results 21 to 30 of about 25,086 (259)

The complex basal morphology and ice dynamics of the Nansen Ice Shelf, East Antarctica [PDF]

The Cryosphere
Ice shelf dynamics and morphology play an important role in the stability of floating bodies of ice by driving fracturing that can lead to calving, in turn impacting the ability of the ice shelf to buttress upstream grounded ice. Following a 2016 calving
C. F. Dow, D. Mueller, P. Wray, D. Friedrichs, D. Friedrichs, A. L. Forrest, A. L. Forrest, J. B. McInerney, J. B. McInerney, J. Greenbaum, D. D. Blankenship, C. K. Lee, W. S. Lee   +12 more
doaj   +1 more source

Bathymetric and oceanic controls on Abbot Ice Shelf thickness and stability [PDF]

The Cryosphere, 2014
Ice shelves play key roles in stabilizing Antarctica's ice sheets, maintaining its high albedo and returning freshwater to the Southern Ocean. Improved data sets of ice shelf draft and underlying bathymetry are important for assessing ocean–ice ...
J. R. Cochran, S. S. Jacobs, K. J. Tinto, R. E. Bell   +3 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]

ARCTIC, 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

History of the Larsen C Ice Shelf reconstructed from sub–ice shelf and offshore sediments [PDF]

Geology, 2021
Abstract Because ice shelves respond to climatic forcing over a range of time scales, from years to millennia, an understanding of their long-term history is critically needed for predicting their future evolution. We present the first detailed reconstruction of the Larsen C Ice Shelf (LCIS), eastern Antarctic Peninsula (AP), based on ...
Smith, J.A., Hillenbrand, C.-D., Subt, C., Rosenheim, B.E., Frederichs, T., Ehrmann, W., Andersen, T.J., Wacker, L., Makinson, K., Anker, P., Venables, E.J., Nicholls, K.W.   +11 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]

Ocean 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

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

Annals 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, Predrag Popović, David P. Mayer   +2 more
doaj   +1 more source

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

Journal 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, Felicity S. McCormack, Sue Cook, Jason Roberts, Adam Treverrow   +4 more
doaj   +1 more source

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

The 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, J. E. Arndt, R. D. Larter, C.-D. Hillenbrand, S. H. Sørli, M. Forwick, J. A. Smith, L. Wacker   +7 more
doaj   +1 more source

Residence Time and Transformation of Warm Circumpolar Deep Water on the Antarctic Continental Shelf

Geophysical Research Letters, 2021
Inflow of warm modified Circumpolar Deep Water (CDW) onto the Antarctic continental shelf and into ice shelf cavities is a key driver of Antarctic ice shelf mass loss.
V. Tamsitt, M. H. England, S. R. Rintoul, A. K. Morrison   +3 more
doaj   +1 more source

Investigating the impact of sub-ice shelf melt on Antarctic ice sheet spin-up and projections [PDF]

The Cryosphere
Sub-ice shelf melting is critical for the stability of the Antarctic ice sheet, as it influences ice-shelf buttressing that reduces grounded ice flow. Previous studies have emphasized that uncertainties in the state of sub-ice shelf melting contribute to
F. Gao, F. Gao, Q. Shen, Q. Shen, H. Wang, H. Wang, T. Zhang, L. Jiang, L. Jiang, Y. Liu, C. K. Shum, Y. An, Y. An, X. Zhang, X. Zhang   +14 more
doaj   +1 more source