Results 51 to 60 of about 487,910 (214)

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.
Marianne Haseloff, Marianne Haseloff, M. A. Martin, M. A. Martin, Anders Levermann, Anders Levermann, Ricarda Winkelmann, Ricarda Winkelmann, Torsten Albrecht, Torsten Albrecht   +9 more
openaire   +6 more sources

Finite Element Analysis of Calving From Ice Fronts [PDF]

Annals of Glaciology, 1982
The Antarctic ice sheet has almost no net annual ablation on its surface, so most mass losses are by iceberg calving along its perimeter, which may be either grounded in shallow water or floating in deep water. An ice cliff forms along the perimeter in both cases.
William F. Schmidt, James L. Fastook
openaire   +2 more sources

IceLines – A new data set of Antarctic ice shelf front positions

Scientific Data, 2023
The frontal position of an ice shelf is an important parameter for ice dynamic modelling, the computation of mass fluxes, mapping glacier area change, calculating iceberg production rates and the estimation of ice discharge to the ocean.
Celia A. Baumhoer, Andreas J. Dietz, Konrad Heidler, Claudia Kuenzer   +3 more
doaj   +1 more source

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

Velocity response of Petermann Glacier, northwest Greenland, to past and future calving events [PDF]

The Cryosphere, 2018
Dynamic ice discharge from outlet glaciers across the Greenland Ice Sheet has increased since the beginning of the 21st century. Calving from floating ice tongues that buttress these outlets can accelerate ice flow and discharge of grounded ice. However,
E. A. Hill, G. H. Gudmundsson, J. R. Carr, C. R. Stokes   +3 more
doaj   +1 more source

Automatic Extraction of the Calving Front of Pine Island Glacier Based on Neural Network

Remote Sensing, 2023
Calving front location plays a crucial role in studying ice–ocean interaction, mapping glacier area change, and constraining ice dynamic models. However, relying solely on visual interpretation to extract annual changes in the calving front of ice ...
Xiangyu Song, Yang Du, Jiang Guo
doaj   +1 more source

Antarctic ecosystem responses following ice‐shelf collapse and iceberg calving: Science review and future research

WIREs Climate Change, 2020
The calving of A‐68, the 5,800‐km2, 1‐trillion‐ton iceberg shed from the Larsen C Ice Shelf in July 2017, is one of over 10 significant ice‐shelf loss events in the past few decades resulting from rapid warming around the Antarctic Peninsula.
J. Ingels, R. Aronson, C. Smith, A. Baco, Holly M. Bik, J. Blake, A. Brandt, M. Cape, D. DeMaster, E. Dolan, E. Domack, Spencer E. Fire, Heidi N. Geisz, M. Gigliotti, H. Griffiths, K. Halanych, C. Havermans, F. Huettmann, S. Ishman, S. Kranz, A. Leventer, A. Mahon, J. McClintock, M. McCormick, B. Mitchell, A. Murray, L. Peck, A. Rogers, Barbara Shoplock, Kathryn E. L. Smith, Brittan V. Steffel, M. Stukel, A. Sweetman, M. Taylor, A. Thurber, M. Truffer, A. Putte, A. Vanreusel, M. A. Zamora-Duran   +38 more
semanticscholar   +1 more source

Buoyant calving and ice-contact lake evolution at Pasterze Glacier (Austria) in the period 1998–2019

The Cryosphere, 2020
. Rapid growth of proglacial lakes in the current warming climate can pose significant outburst flood hazards, increase rates of ice mass loss, and alter the dynamic state of glaciers.
A. Kellerer‐Pirklbauer, M. Avian, D. Benn, Felix Bernsteiner, Philipp Krisch, C. Ziesler   +5 more
semanticscholar   +1 more source

On The Calving of Ice From Floating Glaciers and Ice Shelves [PDF]

Journal of Glaciology, 1968
The deformation and the state of stress in the frontal part of a floating glacier is analysed by a method analogous with the beam theory, applied in engineering practice for determining stresses and deflections of a beans of an elastic material. Very rough approximations are made, the most severe being that of assuming the viscosity of the ice constant.
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