Results 11 to 20 of about 407 (118)
Marine ice-sheet experiments with the Community Ice Sheet Model [PDF]
The Cryosphere, 2020 Abstract. Ice sheet models differ in their numerical treatment of dynamical processes. Simulations of marine-based ice are sensitive to the choice of Stokes flow approximation and basal friction law, and to the treatment of stresses and melt rates near the grounding line.
Gunter R. Leguy +2 more
openaire +3 more sources
An ice sheet model validation framework for the Greenland ice sheet [PDF]
Geoscientific Model Development, 2016 Abstract. We propose a new ice sheet model validation framework – the Cryospheric Model Comparison Tool (CmCt) – that takes advantage of ice sheet altimetry and gravimetry observations collected over the past several decades and is applied here to modeling of the Greenland ice sheet.
Stephen F. Price +17 more
openaire +7 more sources
Annals of Glaciology, 1984 This paper presents a review of the ice-sheet mechanics behind the modeling work of Pleistocene ice sheets driven by astronomical (Milankovitch) forcing.
J. Weertman, G. E. Birchfield
openaire +1 more source
Modeling the Antarctic ice sheet [PDF]
Annals of Glaciology, 1997 A three-dimensional (3-D), high-resolution, non-linearly viscous, non-isothermal ice-sheet model is employed to calculate the “present-day” equilibrium regime of the Antarctic ice sheet and its evolution during the last glacial cycle.
Mikhail Verbitsky, Barry Saltzman
openaire +1 more source
Eemian Greenland ice sheet simulated with a higher-order model shows strong sensitivity to surface mass balance forcing [PDF]
The Cryosphere, 2019 The Greenland ice sheet contributes increasingly to global sea level rise. Its history during past warm intervals is a valuable reference for future sea level projections.
A. Plach +6 more
doaj +1 more source
Ambiguous stability of glaciers at bed peaks
Journal of Glaciology, 2022 Increasing ice flux from glaciers retreating over deepening (retrograde) bed topography has been implicated in the recent acceleration of mass loss from the Greenland and Antarctic ice sheets.
Alexander A. Robel +4 more
doaj +1 more source
Future sea-level projections with a coupled atmosphere-ocean-ice-sheet model
Nature Communications, 2023 Most global sea level projections ignore the active role of ice-sheet-climate coupling. Including this effect, a new modeling system simulates irreversible Antarctic ice-sheet loss and accelerating sea level rise for global mean temperatures >1.8oC.
Jun-Young Park +5 more
doaj +1 more source
A parallel implementation of the confined–unconfined aquifer system model for subglacial hydrology: design, verification, and performance analysis (CUAS-MPI v0.1.0) [PDF]
Geoscientific Model Development, 2023 The subglacial hydrological system affects (i) the motion of ice sheets through sliding, (ii) the location of lakes at the ice margin, and (iii) the ocean circulation by freshwater discharge directly at the grounding line or (iv) via rivers flowing over ...
Y. Fischler +10 more
doaj +1 more source
Implementation of higher-order vertical finite elements in ISSM v4.13 for improved ice sheet flow modeling over paleoclimate timescales [PDF]
Geoscientific Model Development, 2018 Paleoclimate proxies are being used in conjunction with ice sheet modeling experiments to determine how the Greenland ice sheet responded to past changes, particularly during the last deglaciation.
J. K. Cuzzone +5 more
doaj +1 more source
Journal of Glaciology, 2023 Ice-crystal fabric can induce mechanical anisotropy that significantly affects flow, but ice-flow models generally do not include fabric development or its effect upon flow.
David A. Lilien +6 more
doaj +1 more source