Results 31 to 40 of about 532,419 (357)

A last glacial ice sheet on the Pacific Russian coast and catastrophic change arising from coupled ice–volcanic interaction [PDF]

open access: yes, 2008
Controversy exists over the extent of glaciation in Eastern Asia at the Last Glacial Maximum: complete ice sheet cover vs. restricted mountain icefields (an area discrepancy equivalent to 3.7 Greenland Ice Sheets).
Bigg, G.R., Clark, C.D., Hughes, A.L.C.
core   +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

Computation of a combined spherical-elastic and viscous-half-space earth model for ice sheet simulation [PDF]

open access: yes, 2006
This report starts by describing the continuum model used by Lingle & Clark (1985) to approximate the deformation of the earth under changing ice sheet and ocean loads.
Cathles   +7 more
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

Ice sheets and nitrogen [PDF]

open access: yesPhilosophical Transactions of the Royal Society B: Biological Sciences, 2013
Snow and ice play their most important role in the nitrogen cycle as a barrier to land–atmosphere and ocean–atmosphere exchanges that would otherwise occur. The inventory of nitrogen compounds in the polar ice sheets is approximately 260 Tg N, dominated by nitrate in the much larger Antarctic ice sheet.
openaire   +3 more sources

Modeling of the northern hemisphere ice sheets during the last glacial cycle and glaciological sensitivity [PDF]

open access: yes, 2005
We present a new three-dimensional thermomechanically coupled ice sheet model of the northern hemisphere to reconstruct the Quaternary ice sheets during the last glacial cycle.
Huybrechts, Philippe, Zweck, C.
core   +1 more source

Evidence of meltwater retention within the Greenland ice sheet [PDF]

open access: yesThe Cryosphere, 2013
Greenland ice sheet mass losses have increased in recent decades with more than half of these attributed to surface meltwater runoff. However, the magnitudes of englacial storage, firn retention, internal refreezing and other hydrologic processes that ...
A. K. Rennermalm   +7 more
doaj   +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

Antarctic ice sheet response to sudden and sustained ice-shelf collapse (ABUMIP)

open access: yesJournal of Glaciology, 2020
Antarctica's ice shelves modulate the grounded ice flow, and weakening of ice shelves due to climate forcing will decrease their ‘buttressing’ effect, causing a response in the grounded ice.
Sainan Sun   +28 more
doaj   +1 more source

The Chernobyl Reference Horizon (?) in the Greenland Ice Sheet [PDF]

open access: yes, 1989
Published reports of the presence of radioactive debris from the Chernobyl reactor accident in snow on the Greenland ice sheet raised the strong prospect that such debris might constitute a valuable time stratigraphic marker all over the ice sheet. Large
Dibb, Jack E.
core   +2 more sources

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