Results 11 to 20 of about 18,238 (212)

A rapidly converging initialisation method to simulate the present-day Greenland ice sheet using the GRISLI ice sheet model (version 1.3) [PDF]

Geoscientific Model Development, 2019
Providing reliable projections of the ice sheet contribution to future sea-level rise has become one of the main challenges of the ice sheet modelling community.
S. Le clec'h, S. Le clec'h, A. Quiquet, A. Quiquet, S. Charbit, C. Dumas, M. Kageyama, C. Ritz   +7 more
doaj   +1 more source

Extended enthalpy formulations in the Ice-sheet and Sea-level System Model (ISSM) version 4.17: discontinuous conductivity and anisotropic streamline upwind Petrov–Galerkin (SUPG) method [PDF]

Geoscientific Model Development, 2020
The thermal state of an ice sheet is an important control on its past and future evolution. Some parts of the ice sheet may be polythermal, leading to discontinuous properties at the cold–temperate transition surface (CTS).
M. Rückamp, A. Humbert, A. Humbert, T. Kleiner, M. Morlighem, H. Seroussi   +5 more
doaj   +1 more source

Geology datasets in North America, Greenland and surrounding areas for use with ice sheet models [PDF]

Earth System Science Data, 2019
The ice–substrate interface is an important boundary condition for ice sheet modelling. The substrate affects the ice sheet by allowing sliding through sediment deformation and accommodating the storage and drainage of subglacial water.
E. J. Gowan, L. Niu, G. Knorr, G. Lohmann   +3 more
doaj   +1 more source

Ice-sheet configuration in the CMIP5/PMIP3 Last Glacial Maximum experiments [PDF]

Geoscientific Model Development, 2015
We describe the creation of a data set describing changes related to the presence of ice sheets, including ice-sheet extent and height, ice-shelf extent, and the distribution and elevation of ice-free land at the Last Glacial Maximum (LGM), which were
A. Abe-Ouchi, F. Saito, M. Kageyama, P. Braconnot, S. P. Harrison, K. Lambeck, B. L. Otto-Bliesner, W. R. Peltier, L. Tarasov, J.-Y. Peterschmitt, K. Takahashi   +10 more
doaj   +1 more source

Investigating the sensitivity of numerical model simulations of the modern state of the Greenland ice-sheet and its future response to climate change [PDF]

The Cryosphere, 2010
Ice thickness and bedrock topography are essential boundary conditions for numerical modelling of the evolution of the Greenland ice-sheet (GrIS). The datasets currently in use by the majority of GrIS modelling studies are over two decades old and based ...
E. J. Stone, D. J. Lunt, I. C. Rutt, E. Hanna   +3 more
doaj   +1 more source

Deglacial climate changes as forced by different ice sheet reconstructions [PDF]

Climate of the Past, 2023
During the last deglaciation, the climate evolves from a cold state at the Last Glacial Maximum (LGM) at 21 ka (thousand years ago) with large ice sheets to the warm Holocene at ∼9 ka with reduced ice sheets.
N. Bouttes, F. Lhardy, F. Lhardy, A. Quiquet, A. Quiquet, D. Paillard, H. Goosse, D. M. Roche, D. M. Roche   +8 more
doaj   +1 more source

An assessment of key model parametric uncertainties in projections of Greenland Ice Sheet behavior [PDF]

, 2012
Lack of knowledge about the values of ice sheet model input parameters introduces substantial uncertainty into projections of Greenland Ice Sheet contributions to future sea level rise.
Stone, Emma J., N. Kirchner, K. Keller, Keller, K., Greve, Ralf, Applegate, P. J., Greve, R., R. Greve, Keller, Klaus, Kirchner, N., Applegate, Patrick J.,, Applegate, Patrick J., Kirchner, Nina, Stone, EJ, Kirchner, Nina,, E. J. Stone, Stone, E. J., P. J. Applegate   +17 more
core   +1 more source

Cosmogenic-nuclide data from Antarctic nunataks can constrain past ice sheet instabilities [PDF]

The Cryosphere, 2023
We apply geologic evidence from ice-free areas in Antarctica to evaluate model simulations of ice sheet response to warm climates. This is important because such simulations are used to predict ice sheet behaviour in future warm climates, but geologic ...
A. R. W. Halberstadt, G. Balco, H. Buchband, P. Spector   +3 more
doaj   +2 more sources

Potential subglacial lake locations and meltwater drainage pathways beneath the Antarctic and Greenland ice sheets [PDF]

, 2013
We use the Shreve hydraulic potential equation as a simplified approach to investigate potential subglacial lake locations and meltwater drainage pathways beneath the Antarctic and Greenland ice sheets. We validate the method by demonstrating its ability
Clark, Chris, Woodward, J., Livingstone, Stephen, Woodward, John, Clark, C.D., Kingslake, J., Livingstone, S.J., Livingstone, S. J., Clark, C. D., J. Kingslake, Kingslake, Jonathan, C. D. Clark, S. J. Livingstone, J. Woodward   +13 more
core   +1 more source

Mid-Holocene thinning of David Glacier, Antarctica: chronology and controls [PDF]

The Cryosphere, 2021
Quantitative satellite observations only provide an assessment of ice sheet mass loss over the last four decades. To assess long-term drivers of ice sheet change, geological records are needed. Here we present the first millennial-scale reconstruction of
J. Stutz, A. Mackintosh, K. Norton, R. Whitmore, R. Whitmore, C. Baroni, S. S. R. Jamieson, R. S. Jones, G. Balco, M. C. Salvatore, S. Casale, J. I. Lee, Y. B. Seong, R. McKay, L. J. Vargo, D. Lowry, D. Lowry, P. Spector, M. Christl, S. Ivy Ochs, L. Di Nicola, M. Iarossi, F. Stuart, T. Woodruff   +23 more
doaj   +1 more source