Results 31 to 40 of about 2,666,636 (245)

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

Capturing the interactions between ice sheets, sea level and the solid Earth on a range of timescales: a new “time window” algorithm [PDF]

Geoscientific Model Development, 2022
Retreat and advance of ice sheets perturb the gravitational field, solid surface and rotation of the Earth, leading to spatially variable sea-level changes over a range of timescales O(100−6 years), which in turn feed back onto ice-sheet dynamics ...
H. K. Han, H. K. Han, N. Gomez, J. X. W. Wan   +3 more
doaj   +1 more source

Tracer transport in an isochronal ice-sheet model

Journal of Glaciology, 2017
The full history of ice sheet and climate interactions is recorded in the vertical profiles of geochemical tracers in polar ice sheets. Numerical simulations of these archives promise great advances both in the interpretation of these reconstructions and
ANDREAS BORN
doaj   +1 more source

The configuration of Northern Hemisphere ice sheets through the Quaternary

Nature Communications, 2019
How global climatic changes are translated into ice-sheet fluctuations and sea-level change is not well understood. Here the authors present a compilation of empirical data and numerical modelling results of pre-LGM Northern Hemisphere ice sheet changes ...
Christine L. Batchelor, Martin Margold, Mario Krapp, Della K. Murton, April S. Dalton, Philip L. Gibbard, Chris R. Stokes, Julian B. Murton, Andrea Manica   +8 more
doaj   +1 more source

Modelling dynamic ice-sheet boundaries and grounding line migration using the level set method

Journal of Glaciology, 2020
Computing predictions of future sea level that include well-defined uncertainty bounds requires models that are capable of robustly simulating the evolution of ice sheets and glaciers.
M. Alamgir Hossain, Sam Pimentel, John M. Stockie   +2 more
doaj   +1 more source

The speedup of Pine Island Ice Shelf between 2017 and 2020: revaluating the importance of ice damage

Journal of Glaciology, 2023
From 2017 to 2020, three significant calving events took place on Pine Island Glacier, West Antarctica. Ice-shelf velocities changed over this period and the calving events have been suggested as possible drivers.
Sainan Sun, G. Hilmar Gudmundsson
doaj   +1 more source

A temperate former West Antarctic ice sheet suggested by an extensive zone of bed channels [PDF]

, 2014
We present radio-echo sounding data and satellite imagery, revealing a series of ancient large sub-parallel subglacial channels preserved in the region between the Möller and Foundation Ice Streams, West Antarctica.
Martin J. Siegert, Tom A. Jordan, Rippin, David M., Jordan, Tom A., Ross, N, Siegert, MJ, Corr, HFJ, Siegert, Martin J., Rippin, DM, Le Brocq, Anne, Hugh F.J. Corr, Jordan, TA, Kathryn C. Rose, Le Brocq, Anne M., Rose, Kathryn C., Bingham, RG, Le Brocq, AM, Anne M. Le Brocq, Ross, Neil, Fausto Ferraccioli, Rose, KC, Ferraccioli, F, Ferraccioli, Fausto, Corr, Hugh F.J., Robert G. Bingham, Neil Ross, David M. Rippin, Bingham, Robert G., K.C. Rose (9005840), et al. (281964)   +29 more
core   +1 more source

Trimlines, blockfields and the vertical extent of the last ice sheet in southern Ireland [PDF]

, 2015
The research reported here was supported by UK NERC grant NER/B/S/2001/0919Trimlines separating glacially abraded lower slopes from blockfield-covered summits on Irish mountains have traditionally been interpreted as representing the upper limit of the ...
Stone, John O., John O. Stone, Ballantyne, Colin, Colin K. Ballantyne   +3 more
core   +1 more source

Ice flux evolution in fast flowing areas of the Greenland ice sheet over the 20th and 21st centuries

Journal of Glaciology, 2017
This study investigates the evolution of Greenland ice sheet flux focusing on five of the main fast flowing regions (Petermann glacier, North East Greenland Ice Stream, Kangerdlugssuaq glacier, Helheim glacier and Jakobshavn glacier) in response to 20th ...
DANIELE PEANO, FLORENCE COLLEONI, AURÉLIEN QUIQUET, SIMONA MASINA   +3 more
doaj   +1 more source

Greater Greenland Ice Sheet contribution to global sea level rise in CMIP6

Nature Communications, 2020
The potential contribution of Greenland Ice Sheet to sea level rise in the future is known to be substantial. Here, the authors undertake new modelling showing that the Greenland Ice Sheet sea level rise contribution is 7.9 cm more using the CMIP6 SSP585
Stefan Hofer, Charlotte Lang, Charles Amory, Christoph Kittel, Alison Delhasse, Andrew Tedstone, Xavier Fettweis   +6 more
doaj   +1 more source