Results 1 to 10 of about 662,315 (337)

The impact of spatially varying ice sheet basal conditions on sliding at glacial time scales

open access: yesJournal of Glaciology, 2023
Spatially variable basal conditions are thought to govern how ice sheets behave at glacial time scales (>1000 years) and responsible for changes in dynamics between the core and peripheral regions of the Laurentide and Fennoscandian ice sheets.
Evan J. Gowan   +4 more
doaj   +1 more source

CMIP5 model selection for ISMIP6 ice sheet model forcing: Greenland and Antarctica

open access: yesThe Cryosphere, 2019
. The ice sheet model intercomparison project for CMIP6 (ISMIP6) effort brings together the ice sheet and climate modeling communities to gain understanding of the ice sheet contribution to sea level rise.
A. Barthel   +9 more
semanticscholar   +1 more source

The role of subtemperate slip in thermally driven ice stream margin migration [PDF]

open access: yes, 2018
The amount of ice discharged by an ice stream depends on its width, and the widths of unconfined ice streams such as the Siple Coast ice streams in West Antarctica have been observed to evolve on decadal to centennial timescales.
Gagliardini, Olivier   +2 more
core   +4 more sources

Description and evaluation of the Community Ice Sheet Model (CISM) v2.1

open access: yesGeoscientific Model Development, 2018
. We describe and evaluate version 2.1 of the Community Ice Sheet Model (CISM). CISM is a parallel, 3-D thermomechanical model, written mainly in Fortran, that solves equations for the momentum balance and the thickness and temperature evolution of ice ...
W. Lipscomb   +14 more
semanticscholar   +1 more source

Recent Progress in Greenland Ice Sheet Modelling [PDF]

open access: yesCurrent Climate Change Reports, 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,
Heiko Goelzer   +3 more
openaire   +7 more sources

The evolution of future Antarctic surface melt using PISM-dEBM-simple [PDF]

open access: yesThe Cryosphere, 2023
It is virtually certain that Antarctica's contribution to sea-level rise will increase with future warming, although competing mass balance processes hamper accurate quantification of the exact magnitudes.
J. Garbe   +6 more
doaj   +1 more source

Positive feedbacks drive the Greenland ice sheet evolution in millennial-length MAR–GISM simulations under a high-end warming scenario [PDF]

open access: yesThe Cryosphere
Understanding the complex interactions between the Greenland ice sheet (GrIS) and the atmosphere is crucial for projecting its future sea level contribution. However, studying these interactions remains challenging, as it requires high-resolution climate
C. M. Paice, X. Fettweis, P. Huybrechts
doaj   +1 more source

Simulation of the last glacial cycle with a coupled climate ice-sheet model of intermediate complexity [PDF]

open access: yes, 2010
A new version of the Earth system model of intermediate complexity, CLIMBER-2, which includes the three-dimensional polythermal ice-sheet model SICOPOLIS, is used to simulate the last glacial cycle forced by variations of the Earth's orbital parameters ...
A. Ganopolski, M. Claussen, R. Calov
core   +2 more sources

Greenland ice sheet mass balance assessed by PROMICE (1995–2015)

open access: yesGeological Survey of Denmark and Greenland Bulletin, 2019
The Programme for Monitoring of the Greenland Ice Sheet (PROMICE) has measured ice-sheet elevation and thickness via repeat airborne surveys circumscribing the ice sheet at an average elevation of 1708 ± 5 m (Sørensen et al. 2018).
William Colgan   +20 more
doaj   +1 more source

initMIP-Antarctica: an ice sheet model initialization experiment of ISMIP6

open access: yesThe Cryosphere, 2017
. Ice sheet numerical modeling is an important tool to estimate the dynamic contribution of the Antarctic ice sheet to sea level rise over the coming centuries. The influence of initial conditions on ice sheet model simulations, however, is still unclear.
H. Seroussi   +38 more
semanticscholar   +1 more source

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