Results 41 to 50 of about 306,492 (342)

A theoretical steady state profile of ice sheets (two-dimentional model)

open access: yesAntarctic Record, 1977
The Nye's kinematic theory of ice sheet profiles is revised on the basis of the conservation law of ice mass, because the Nye's ice sheet model or the revised Haefeli's model does not satisfy the ice mass conservation law and therefore they cannot have a
Takesi Nagata
doaj   +1 more source

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

A new coupled ice sheet/climate model: description and sensitivity to model physics under Eemian, Last Glacial Maximum, late Holocene and modern climate conditions [PDF]

open access: yesGeoscientific Model Development, 2011
The need to better understand long-term climate/ice sheet feedback loops is motivating efforts to couple ice sheet models into Earth System models which are capable of long-timescale simulations. In this paper we describe a coupled model that consists of
J. G. Fyke   +5 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

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

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

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

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

Pliocene Ice Sheet Modelling Intercomparison Project (PLISMIP) – experimental design [PDF]

open access: yesGeoscientific 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
doaj   +1 more source

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

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