Results 21 to 30 of about 407 (118)

Influence of temperature fluctuations on equilibrium
ice sheet volume [PDF]

The Cryosphere, 2018
Forecasting the future sea level relies on accurate modeling of the response of the Greenland and Antarctic ice sheets to changing temperatures. The surface mass balance (SMB) of the Greenland Ice Sheet (GrIS) has a nonlinear response to warming. Cold
T. B. Mikkelsen, A. Grinsted, P. Ditlevsen   +2 more
doaj   +1 more source

Cosmogenic ages indicate no MIS 2 refugia in the Alexander Archipelago, Alaska [PDF]

Geochronology, 2022
The late-Pleistocene history of the coastal Cordilleran Ice Sheet remains relatively unstudied compared to chronologies of the Laurentide Ice Sheet. Yet accurate reconstructions of Cordilleran Ice Sheet extent and the timing of ice retreat along the ...
C. K. Walcott, J. P. Briner, J. F. Baichtal, A. J. Lesnek, J. M. Licciardi   +4 more
doaj   +1 more source

Simulating the Antarctic ice sheet in the late-Pliocene warm period: PLISMIP-ANT, an ice-sheet model intercomparison project [PDF]

The Cryosphere, 2015
In the context of future climate change, understanding the nature and behaviour of ice sheets during warm intervals in Earth history is of fundamental importance.
B. de Boer, A. M. Dolan, J. Bernales, E. Gasson, H. Goelzer, N. R. Golledge, J. Sutter, P. Huybrechts, G. Lohmann, I. Rogozhina, A. Abe-Ouchi, F. Saito, R. S. W. van de Wal   +12 more
doaj   +1 more source

Sensitivity of isochrones to surface mass balance and dynamics

Journal of Glaciology, 2023
The interior of an ice sheet consists of layers of accumulated snow, which contain important information on accumulation and ice dynamics that are imprinted on layer shapes over time.
Alexios Theofilopoulos, Andreas Born
doaj   +1 more source

Investigating the multi-millennial evolution and stability of the Greenland ice sheet using remapped surface mass balance forcing [PDF]

The Cryosphere
Surface mass balance (SMB) forcing for projections of the future evolution of the Greenland ice sheet with stand-alone modeling approaches has been commonly derived from regional climate models (RCMs) on a fixed ice sheet topography.
C. Rahlves, C. Rahlves, H. Goelzer, A. Born, P. M. Langebroek   +4 more
doaj   +1 more source

The Impact of Basal Roughness on Inland Thwaites Glacier Sliding

Geophysical Research Letters, 2022
Swath radar technology enables three‐dimensional mapping of modern glacier beds over large areas at resolutions that are higher than those typically used in ice‐flow models.
Andrew O. Hoffman, Knut Christianson, Nicholas Holschuh, Elizabeth Case, Jonathan Kingslake, Robert Arthern   +5 more
doaj   +1 more source

A Thermohydrodynamic Model of an Ice Sheet [PDF]

Journal of Glaciology, 1980
Abstract The purpose of this paper is to consider an ice-sheet model based on joint solution to the dynamic equations and equations of heat conductivity in which the surface relief is one of the unknown functions. The proposed model is applicable to calculations of the Antarctic ice sheet. Results of a numerical experiment for present
M. Ya. Verbitsky, D. V. Chalikov
openaire   +1 more source

On nonlinear strain theory for a viscoelastic material model and its implications for calving of ice shelves

Journal of Glaciology, 2019
In the current ice-sheet models calving of ice shelves is based on phenomenological approaches. To obtain physics-based calving criteria, a viscoelastic Maxwell model is required accounting for short-term elastic and long-term viscous deformation.
JULIA CHRISTMANN, RALF MÜLLER, ANGELIKA HUMBERT   +2 more
doaj   +1 more source

Range of 21st century ice mass changes in the Filchner-Ronne region of Antarctica

Journal of Glaciology, 2023
Increases in ocean temperatures in the Filchner Ronne region of Antarctica are likely to result in increased ice mass loss and sea level rise. We constrain projections of the 21st century sea level contribution of this region using process-based ice ...
Andrew Johnson, Andy Aschwanden, Torsten Albrecht, Regine Hock   +3 more
doaj   +1 more source

A stochastic parameterization of ice sheet surface mass balance for the Stochastic Ice-Sheet and Sea-Level System Model (StISSM v1.0) [PDF]

Geoscientific Model Development
Many scientific and societal questions that draw on ice sheet modeling necessitate sampling a wide range of potential climatic changes and realizations of internal climate variability.
L. Ultee, L. Ultee, A. A. Robel, S. Castruccio   +3 more
doaj   +1 more source