Results 11 to 20 of about 7,703 (211)
Recent Progress in Greenland Ice Sheet Modelling. [PDF]
Curr Clim Change Rep, 2017 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. In particular, the review is focused on large-scale modelling of the ice sheet, including future projections, model parameterisations,
Goelzer H +3 more
europepmc +11 more sources
Glacial cycles and ice-sheet modelling [PDF]
Climatic Change, 1982 An attempt is made to simulate the Pleistocene glacial cycles with a numerical model of the Northern Hemisphere ice sheets. This model treats the vertically-integrated ice flow along a meridian, including computation of bedrock adjustment and temperature distribution in the ice. Basal melt water is traced and controls ice-mass discharge.
J. Oerlemans
+6 more sources
The paradigm shift in Antarctic ice sheet modelling. [PDF]
Nat Commun, 2018 The Antarctic ice sheet is one of the largest potential contributors to future sea level rise. Predicting its future behaviour using physically-based ice sheet models has been a bottleneck for the past decades, but major advances are ongoing.
Pattyn F.
europepmc +6 more sources
On non-dimensional forms of basal sliding laws and flow laws for ice-sheet and glacier modelling
Journal of GlaciologyIce sheets and glaciers flow through basal sliding and internal deformation, each governed by physical laws commonly expressed as power-law relations. These formulations include coefficients—the sliding coefficient and rate factor—whose values and units ...
Ralf Greve
doaj +2 more sources
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
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
doaj +1 more source
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
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
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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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
doaj +1 more source