Results 41 to 50 of about 20,609 (205)

Parameterization for subgrid-scale motion of ice-shelf calving fronts [PDF]

The Cryosphere, 2010
Abstract. A parameterization for the motion of ice-shelf fronts on a Cartesian grid in finite-difference land-ice models is presented. The scheme prevents artificial thinning of the ice shelf at its edge, which occurs due to the finite resolution of the model.
Albrecht, T., Martin, M., Haseloff, M., Winkelmann, R., Levermann, A.   +4 more
openaire   +6 more sources

Tidewater glacier response to individual calving events

Journal of Glaciology, 2022
Tidewater glaciers have been observed to experience instantaneous, stepwise increases in velocity during iceberg-calving events due to a loss of resistive stresses.
Jason M. Amundson, Martin Truffer, Thomas Zwinger   +2 more
doaj   +1 more source

Brief Communication: Newly developing rift in Larsen C Ice Shelf presents significant risk to stability [PDF]

The Cryosphere, 2015
An established rift in the Larsen C Ice Shelf, formerly constrained by a suture zone containing marine ice, grew rapidly during 2014 and is likely in the near future to generate the largest calving event since the 1980s and result in a new minimum area ...
D. Jansen, A. J. Luckman, A. Cook, S. Bevan, B. Kulessa, B. Hubbard, P. R. Holland   +6 more
doaj   +1 more source

Effect of topography on subglacial discharge and submarine melting during tidewater glacier retreat. [PDF]

, 2017
-We explored secular variations in subglacial discharge and submarine melting with an idealized model -Subglacial discharge increases as tidewater glaciers retreat along retrograde beds -Submarine melting depends on subglacial discharge and ...
Amundson, Arendt, Arimitsu, Arneborg, Aðalgeirsdóttir, Benn, Carroll, Carroll, Cowan, Cowton, Cuffey, Echelmeyer, Enderlin, Fried, Harrison, Hock, Holland, Howat, Huss, Jackson, Jansson, Jenkins, Kamb, Luckman, Lydersen, McNabb, Meier, Meire, Mortensen, Motyka, Motyka, Motyka, Motyka, Nick, Nick, O'Leary, O'Neel, Pfeffer, Podrasky, Post, Rignot, Rignot, Roe, Schoof, Slater, Slater, Straneo, Truffer, Urbanski, Veen, Veen, Veen   +51 more
core   +1 more source

Fluctuations of a Greenlandic tidewater glacier driven by changes in atmospheric forcing : observations and modelling of Kangiata Nunaata Sermia, 1859–present [PDF]

, 2014
Acknowledgements. The authors wish to thank Stephen Price, Mauri Pelto, and the anonymous reviewer for their reviews and comments that helped to improve the manuscript.
Lea, J. M., Mair, D. W. F., Morlighem, M., Nick, F. M., Nienow, P. W., Rea, B. R., van As, D., Weidick, A.   +7 more
core   +8 more sources

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

The 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, Gudmundur Hilmar Gudmundsson, Thomas Nagler, Jan Wuite   +3 more
openaire   +3 more sources

Calving of the Greenland Ice Sheet since 1985

, 2023
The 28th IUGG General Assembly (IUGG2023) (Berlin 2023)
Greene, C., Gardner, A., Cuzzone, J.
openaire   +2 more sources

Calving driven by horizontal forces in a revised crevasse-depth framework [PDF]

The Cryosphere
Calving is a key process for the future of our ice sheets and oceans, but representing it in models remains challenging. Among numerous possible calving parameterisations, the crevasse-depth law remains attractive for its clear physical interpretation ...
D. A. Slater, T. J. W. Wagner
doaj   +1 more source

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

, 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, Stoker, Martyn, Golledge, Nicholas, Wilson, Christian Kverneland, Merritt, Jon, Long, David, Everest, Jeremy, Hestvik, O.B., Stevenson, Alan, Hubbard, Alun, Finlayson, Andrew, Mathers, Hannah   +11 more
core   +2 more sources

Iceberg calving from the Amery Ice Shelf, East Antarctica [PDF]

Annals of Glaciology, 2002
AbstractWe investigate the iceberg-calving cycle of the Amery Ice Shelf (AIS), East Antarctica, using evidence acquired between 1936 and 2000. The most recent major iceberg-calving event occurred between late 1963 and early 1964, when a large berg totalling about 10 000 km2 in area broke from the ice front.
Helen A. Fricker, Neal W. Young, Ian Allison, Richard Coleman   +3 more
openaire   +1 more source