Results 41 to 50 of about 407 (118)

Hysteresis of the Antarctic Ice Sheet With a Coupled Climate‐Ice‐Sheet Model

Geophysical Research Letters
AbstractThe stability of the Antarctic ice sheet under different fixed levels and orbital configurations is explored using a coupled climate‐ice sheet model, starting from either a pre‐industrial ice sheet or an ice‐free, isostatically rebounded geometry.
Leloup, Gaëlle, Quiquet, Aurélien, Roche, Didier M., Dumas, Christophe, Paillard, Didier   +4 more
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Diverse behaviors of marine ice sheets in response to temporal variability of the atmospheric and basal conditions

Journal of Glaciology
The observed retreat of the grounding line of the present-day ice sheets and the simulated grounding-line retreat of ice sheets under changing climate conditions are often interpreted as indications of marine ice-sheet instability (MISI), driven by a ...
Olga Sergienko, Duncan John Wingham
doaj   +1 more source

A model of the Antarctic Ice Sheet

Deep Sea Research Part B. Oceanographic Literature Review, 1982
Numerical modelling of ice sheets and glaciers has become a useful tool in glaciological research. A model described here deals with the vertical mean ice velocity, is time dependent, computes bedrock adjustment and uses an empirical diagnostic relationship to derive the distribution of ice thickness in ice shelves.
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Coupled Climate‐Ice‐Sheet Simulations Reveal Novel Teleconnection Between Northern Hemisphere Ice Sheets and the Antarctic Ice Sheet

Geophysical Research Letters
Coupled climate‐ice‐sheet modeling is still in its developing stage, and feedback processes between ice sheets and climate are still not yet fully understood.
Pierre Testorf, Clemens Schannwell, Marie‐Luise Kapsch, Uwe Mikolajewicz   +3 more
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Simulating Marine Isotope Stage 7 with a coupled climate–ice sheet model [PDF]

Climate of the Past, 2020
It is widely accepted that orbital variations are responsible for the generation of glacial cycles during the late Pleistocene. However, the relative contributions of the orbital forcing compared to CO2 variations and other feedback mechanisms causing ...
D. Choudhury, D. Choudhury, A. Timmermann, A. Timmermann, F. Schloesser, M. Heinemann, D. Pollard   +6 more
doaj   +1 more source

Recent Progress in Greenland Ice Sheet Modelling [PDF]

Current 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, Alexander Robinson, Helene Seroussi, Roderik S.W. van de Wal   +3 more
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Modeling the Cordilleran Ice Sheet [PDF]

Géographie physique et Quaternaire, 2007
A time-dependent ice flow model is used to provide detailed reconstructions of ice growth and retreat for the southern portion of the Late Wisconsinan Cordilleran Ice Sheet. The two-dimensional, time-dependent model provides ice surface elevations and flow directions at a grid spacing of 15 km.
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Ice sheet model dependency of the simulated Greenland Ice Sheet in the mid-Pliocene [PDF]

Climate of the Past, 2015
Abstract. The understanding of the nature and behavior of ice sheets in past warm periods is important for constraining the potential impacts of future climate change. The Pliocene warm period (between 3.264 and 3.025 Ma) saw global temperatures similar to those projected for future climates; nevertheless, Pliocene ice locations and extents are still ...
Koenig, S., Dolan, A., de Boer, B., Stone, E., Hill, D., Deconto, R., Abe-Ouchi, A., Lunt, D., Pollard, D., Quiquet, A., Saito, F., Savage, J., van de Wal, R.   +12 more
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A new ice sheet model validated by remote sensing of the Greenland ice sheet [PDF]

Open Geosciences, 2010
AbstractAccurate prediction of future sea level rise requires models that accurately reproduce and explain the recent observed dramatic ice sheet behaviours. This study presents a new multi-phase, multiple-rheology, scalable and extensible geofluid model of the Greenland ice sheet that shows the credential of successfully reproducing the mass loss rate
Ren, D., Fu, R., Karoly, D., Leslie, L., Chen, J., Wilson, C.   +5 more
openaire   +4 more sources

A balanced water layer concept for subglacial hydrology in large-scale ice sheet models [PDF]

The Cryosphere, 2013
There is currently no doubt about the existence of a widespread hydrological network under the Antarctic Ice Sheet, which lubricates the ice base and thus leads to increased ice velocities.
S. Goeller, M. Thoma, K. Grosfeld, H. Miller   +3 more
doaj   +1 more source