Modelling the Antarctic Ice Sheet across the mid-Pleistocene transition – implications for Oldest Ice [PDF]
The Cryosphere, 2019 The international endeavour to retrieve a continuous ice core, which spans the middle Pleistocene climate transition ca. 1.2–0.9 Myr ago, encompasses a multitude of field and model-based pre-site surveys. We expand on the current efforts to locate
J. Sutter +9 more
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Investigating the internal structure of the Antarctic ice sheet: the utility of isochrones for spatiotemporal ice-sheet model calibration [PDF]
The Cryosphere, 2021 Ice-sheet models are a powerful tool to project the evolution of the Greenland and Antarctic ice sheets and thus their future contribution to global sea-level changes. Testing the ability of ice-sheet models to reproduce the ongoing and past evolution of
J. Sutter +3 more
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Antarctic ice sheet and oceanographic response to eccentricity forcing during the early Miocene [PDF]
Climate of the Past, 2011 Stable isotope records of benthic foraminifera from ODP Site 1264 in the southeastern Atlantic Ocean are presented which resolve the latest Oligocene to early Miocene (~24–19 Ma) climate changes at high temporal resolution (<3 kyr).
D. Liebrand +5 more
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Recent Progress in Greenland Ice Sheet Modelling
Current Climate Change Reports, 2017 Purpose of Review: This paper reviews the recent literature on numerical modelling of the dynamics of the Greenland ice sheet with the goal of providing an overview of advancements and to highlight important directions of future research.
Heiko Goelzer +2 more
exaly +3 more sources
ICESHEET 1.0: a program to produce paleo-ice sheet reconstructions with minimal assumptions [PDF]
Geoscientific Model Development, 2016 We describe a program that produces paleo-ice sheet reconstructions using an assumption of steady-state, perfectly plastic ice flow behaviour. It incorporates three input parameters: ice margin, basal shear stress and basal topography.
E. J. Gowan +6 more
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An improved Antarctic dataset for high resolution numerical ice sheet models (ALBMAP v1) [PDF]
Earth System Science Data, 2010 The dataset described in this paper (ALBMAP) has been created for the purposes of high-resolution numerical ice sheet modelling of the Antarctic Ice Sheet. It brings together data on the ice sheet configuration (e.g.
A. M. Le Brocq, A. J. Payne, A. Vieli
doaj +1 more source
Effect of an orientation-dependent non-linear grain fluidity on bulk directional enhancement factors
Journal of Glaciology, 2021 Bulk directional enhancement factors are determined for axisymmetric (girdle and single-maximum) orientation fabrics using a transversely isotropic grain rheology with an orientation-dependent non-linear grain fluidity.
Nicholas M. Rathmann +4 more
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Pliocene Ice Sheet Modelling Intercomparison Project (PLISMIP) – experimental design [PDF]
Geoscientific Model Development, 2012 During the mid-Pliocene warm period (3.264 to 3.025 million years ago), global mean temperature was similar to that predicted for the next century and atmospheric carbon dioxide concentrations were slightly higher than today.
A. M. Dolan +4 more
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Data assimilation and prognostic whole ice sheet modelling with the variationally derived, higher order, open source, and fully parallel ice sheet model VarGlaS [PDF]
The Cryosphere, 2013 We introduce a novel, higher order, finite element ice sheet model called VarGlaS (Variational Glacier Simulator), which is built on the finite element framework FEniCS.
D. J. Brinkerhoff, J. V. Johnson
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Bed topography and marine ice-sheet stability
Journal of Glaciology, 2022 This paper examines the effect of basal topography and strength on the grounding-line position, flux and stability of rapidly-sliding ice streams.
Olga V. Sergienko, Duncan J. Wingham
doaj +1 more source