Results 31 to 40 of about 123,208 (303)

Glacial cycles and ice-sheet modelling [PDF]

open access: yesClimatic 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.
openaire   +3 more sources

On nonlinear strain theory for a viscoelastic material model and its implications for calving of ice shelves

open access: yesJournal of Glaciology, 2019
In the current ice-sheet models calving of ice shelves is based on phenomenological approaches. To obtain physics-based calving criteria, a viscoelastic Maxwell model is required accounting for short-term elastic and long-term viscous deformation.
JULIA CHRISTMANN   +2 more
doaj   +1 more source

Influence of temperature fluctuations on equilibrium
ice sheet volume
[PDF]

open access: yesThe Cryosphere, 2018
Forecasting the future sea level relies on accurate modeling of the response of the Greenland and Antarctic ice sheets to changing temperatures. The surface mass balance (SMB) of the Greenland Ice Sheet (GrIS) has a nonlinear response to warming. Cold
T. B. Mikkelsen   +2 more
doaj   +1 more source

Marine ice-sheet profiles and stability under Coulomb basal conditions [PDF]

open access: yes, 2015
The behavior of marine-terminating ice sheets, such as the West Antarctic ice sheet, is of interest due to the possibility of rapid grounding-line retreat and consequent catastrophic loss of ice.
Stewart, Andrew L.   +2 more
core   +2 more sources

PLISMIP-ANT, an ice-sheet model intercomparison project [PDF]

open access: yes, 2015
In the context of future climate change, understanding the nature and behaviour of ice sheets during warm intervals in Earth history is of fundamental importance.
Abe-Ouchi, A.   +12 more
core   +1 more source

Eemian Greenland ice sheet simulated with a higher-order model shows strong sensitivity to surface mass balance forcing [PDF]

open access: yesThe Cryosphere, 2019
The Greenland ice sheet contributes increasingly to global sea level rise. Its history during past warm intervals is a valuable reference for future sea level projections.
A. Plach   +6 more
doaj   +1 more source

Range of 21st century ice mass changes in the Filchner-Ronne region of Antarctica

open access: yesJournal of Glaciology, 2023
Increases in ocean temperatures in the Filchner Ronne region of Antarctica are likely to result in increased ice mass loss and sea level rise. We constrain projections of the 21st century sea level contribution of this region using process-based ice ...
Andrew Johnson   +3 more
doaj   +1 more source

Age estimates of isochronous reflection horizons by combining ice core, survey, and synthetic radar data. [PDF]

open access: yes, 2004
Ice core records and ice-penetrating radar data contain complementary information on glacial subsurface structure and composition, providing various opportunities for interpreting past and present environmental conditions.
Eisen, Olaf   +3 more
core   +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

Implementation of higher-order vertical finite elements in ISSM v4.13 for improved ice sheet flow modeling over paleoclimate timescales [PDF]

open access: yesGeoscientific Model Development, 2018
Paleoclimate proxies are being used in conjunction with ice sheet modeling experiments to determine how the Greenland ice sheet responded to past changes, particularly during the last deglaciation.
J. K. Cuzzone   +5 more
doaj   +1 more source

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