Results 31 to 40 of about 4,612 (262)

Tracer transport in an isochronal ice-sheet model

Journal of Glaciology, 2017
The full history of ice sheet and climate interactions is recorded in the vertical profiles of geochemical tracers in polar ice sheets. Numerical simulations of these archives promise great advances both in the interpretation of these reconstructions and
ANDREAS BORN
doaj   +1 more source

Performance portable ice-sheet modeling with MALI

The International Journal of High Performance Computing Applications, 2023
High-resolution simulations of polar ice sheets play a crucial role in the ongoing effort to develop more accurate and reliable Earth system models for probabilistic sea-level projections. These simulations often require a massive amount of memory and computation from large supercomputing clusters to provide sufficient accuracy and resolution ...
Jerry Watkins, Max Carlson, Kyle Shan, Irina Tezaur, Mauro Perego, Luca Bertagna, Carolyn Kao, Matthew J. Hoffman 0004, Stephen F. Price   +8 more
openaire   +2 more sources

High climate model dependency of Pliocene Antarctic ice-sheet predictions

Nature Communications, 2018
Ice sheet models forced by climate model output indicate ice-sheet retreat during the Pliocene, yet concerns remain regarding potential model bias. Here, the authors present results from the Pliocene Ice-sheet Modelling Intercomparison Project, and show ...
Aisling M. Dolan, Bas de Boer, Jorge Bernales, Daniel J. Hill, Alan M. Haywood   +4 more
doaj   +1 more source

The speedup of Pine Island Ice Shelf between 2017 and 2020: revaluating the importance of ice damage

Journal of Glaciology, 2023
From 2017 to 2020, three significant calving events took place on Pine Island Glacier, West Antarctica. Ice-shelf velocities changed over this period and the calving events have been suggested as possible drivers.
Sainan Sun, G. Hilmar Gudmundsson
doaj   +1 more source

The Mathematical Model of Ice Sheets and the Calculation of the Evolution of the Greenland Ice Sheet [PDF]

Journal of Glaciology, 1985
Abstract An evolutionary mathematical model of ice sheets is presented. The model takes into account the basic climatic and geophysical parameters, with temperature parameterization. Some numerical data derived from experiments on the Greenland ice sheet are received.
S.S Grigoryan, S.A Buyanov, M.S Krass, P.A Shumskiy   +3 more
openaire   +1 more source

Modelling dynamic ice-sheet boundaries and grounding line migration using the level set method

Journal of Glaciology, 2020
Computing predictions of future sea level that include well-defined uncertainty bounds requires models that are capable of robustly simulating the evolution of ice sheets and glaciers.
M. Alamgir Hossain, Sam Pimentel, John M. Stockie   +2 more
doaj   +1 more source

Hysteresis of the Antarctic Ice Sheet With a Coupled Climate‐Ice‐Sheet Model

Geophysical Research Letters
AbstractThe stability of the Antarctic ice sheet under different fixed levels and orbital configurations is explored using a coupled climate‐ice sheet model, starting from either a pre‐industrial ice sheet or an ice‐free, isostatically rebounded geometry.
Leloup, Gaëlle, Quiquet, Aurélien, Roche, Didier M., Dumas, Christophe, Paillard, Didier   +4 more
openaire   +5 more sources

Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries

Journal of Glaciology, 2017
This study investigates the evolution of Greenland ice sheet flux focusing on five of the main fast flowing regions (Petermann glacier, North East Greenland Ice Stream, Kangerdlugssuaq glacier, Helheim glacier and Jakobshavn glacier) in response to 20th ...
DANIELE PEANO, FLORENCE COLLEONI, AURÉLIEN QUIQUET, SIMONA MASINA   +3 more
doaj   +1 more source

Greater Greenland Ice Sheet contribution to global sea level rise in CMIP6

Nature Communications, 2020
The potential contribution of Greenland Ice Sheet to sea level rise in the future is known to be substantial. Here, the authors undertake new modelling showing that the Greenland Ice Sheet sea level rise contribution is 7.9 cm more using the CMIP6 SSP585
Stefan Hofer, Charlotte Lang, Charles Amory, Christoph Kittel, Alison Delhasse, Andrew Tedstone, Xavier Fettweis   +6 more
doaj   +1 more source

The configuration of Northern Hemisphere ice sheets through the Quaternary

Nature Communications, 2019
How global climatic changes are translated into ice-sheet fluctuations and sea-level change is not well understood. Here the authors present a compilation of empirical data and numerical modelling results of pre-LGM Northern Hemisphere ice sheet changes ...
Christine L. Batchelor, Martin Margold, Mario Krapp, Della K. Murton, April S. Dalton, Philip L. Gibbard, Chris R. Stokes, Julian B. Murton, Andrea Manica   +8 more
doaj   +1 more source