Results 61 to 70 of about 1,554,346 (328)

The Last Scottish Ice Sheet [PDF]

Earth and Environmental Science Transactions of the Royal Society of Edinburgh, 2018
ABSTRACTThe last Scottish Ice Sheet (SIS) expanded from a pre-existing ice cap after ∼35 ka. Highland ice dominated, with subsequent build-up of a Southern Uplands ice mass. The Outer Hebrides, Skye, Mull, the Cairngorms and Shetland supported persistent independent ice centres.
Ballantyne, Colin K., Small, David
openaire   +5 more sources

Antarctic ice sheet thickness estimation using the horizontal-to-vertical spectral ratio method with single-station seismic ambient noise [PDF]

The Cryosphere, 2018
We report on a successful application of the horizontal-to-vertical spectral ratio (H / V) method, generally used to investigate the subsurface velocity structures of the shallow crust, to estimate the Antarctic ice sheet thickness for the first time.
P. Yan, Z. Li, F. Li, F. Li, Y. Yang, W. Hao, F. Bao   +6 more
doaj   +1 more source

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

, 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, Craig S. Lingle, Ed Bueler, Hutter, Jed Brown, Paterson, Reed, Sneddon   +7 more
core   +2 more sources

Ice sheet contributions to future sea-level rise from structured expert judgment

Proceedings of the National Academy of Sciences of the United States of America, 2019
Significance Future sea level rise (SLR) poses serious threats to the viability of coastal communities, but continues to be challenging to project using deterministic modeling approaches. Nonetheless, adaptation strategies urgently require quantification
J. Bamber, M. Oppenheimer, Robert E Kopp, W. Aspinall, R. Cooke   +4 more
semanticscholar   +1 more source

West Antarctic ice sheet and CO2 greenhouse effect: a threat of disaster

Scottish Geographical Journal, 2020
Over 40 years ago, the glaciologist John Mercer warned that parts of the West Antarctic Ice Sheet were at risk of collapse due to the CO2 greenhouse effect.
D. Benn, D. Sugden
semanticscholar   +1 more source

Ice Streams of the Laurentide Ice Sheet [PDF]

Géographie physique et Quaternaire, 2006
Ice streams had a major influence on the configuration and the stability of the Laurentide Ice Sheet. Their identification is crucial for an understanding of ice sheet behaviour and their importance is reflected by the recent increase in paleo-ice stream research.
Winsborrow, Monica C.M., Clark, Chris D., Stokes, Chris R.   +2 more
openaire   +3 more sources

A rapidly converging initialisation method to simulate the present-day Greenland ice sheet using the GRISLI ice sheet model (version 1.3) [PDF]

Geoscientific Model Development, 2019
Providing reliable projections of the ice sheet contribution to future sea-level rise has become one of the main challenges of the ice sheet modelling community.
S. Le clec'h, S. Le clec'h, A. Quiquet, A. Quiquet, S. Charbit, C. Dumas, M. Kageyama, C. Ritz   +7 more
doaj   +1 more source

Firn on ice sheets

Nature Reviews Earth & Environment
Most of the Greenland and Antarctic ice sheets are covered with firn — the transitional material between snow and glacial ice. Firn is vital for understanding ice-sheet mass balance and hydrology, and palaeoclimate. In this Review, we synthesize knowledge of firn, including its formation, observation, modelling and relevance to ice sheets.
Amory, Charles, Buizert, Christo, Buzzard, Sammie, Case, Elizabeth, Clerx, Nicole, Culberg, Riley, Datta, Rajashree Tri, Dey, Rahul, Drews, Reinhard, Dunmire, Devon, Eayrs, Clare, Hansen, Nicolaj, Humbert, Angelika, Kaitheri, Athul, Keegan, Kaitlin, Kuipers Munneke, Peter, Lenaerts, Jan, Lhermitte, Stef, Mair, Doug, Mcdowell, Ian, Mejia, Jessica, Meyer, Colin, Morris, Elizabeth, Moser, Dorothea, Oraschewski, Falk, Pearce, Emma, de Roda Husman, Sophie, Schlegel, Nicole-Jeanne, Schultz, Timm, Simonsen, Sebastian, Stevens, C. Max, Thomas, Elizabeth, Thompson-Munson, Megan, Wever, Nander, Wouters, Bert   +34 more
openaire   +4 more sources

Design and results of the ice sheet model initialisation initMIP-Greenland: an ISMIP6 intercomparison [PDF]

The Cryosphere, 2018
Earlier large-scale Greenland ice sheet sea-level projections (e.g. those run during the ice2sea and SeaRISE initiatives) have shown that ice sheet initial conditions have a large effect on the projections and give rise to important uncertainties. The
H. Goelzer, H. Goelzer, S. Nowicki, T. Edwards, T. Edwards, M. Beckley, A. Abe-Ouchi, A. Aschwanden, R. Calov, O. Gagliardini, F. Gillet-Chaulet, N. R. Golledge, J. Gregory, J. Gregory, R. Greve, A. Humbert, A. Humbert, P. Huybrechts, J. H. Kennedy, J. H. Kennedy, E. Larour, W. H. Lipscomb, W. H. Lipscomb, S. Le clec'h, V. Lee, M. Morlighem, F. Pattyn, A. J. Payne, C. Rodehacke, C. Rodehacke, M. Rückamp, F. Saito, N. Schlegel, H. Seroussi, A. Shepherd, S. Sun, R. van de Wal, F. A. Ziemen   +37 more
doaj   +1 more source

Investigating the local-scale influence of sea ice on Greenland surface melt [PDF]

The Cryosphere, 2017
Rapid decline in Arctic sea ice cover in the 21st century may have wide-reaching effects on the Arctic climate system, including the Greenland ice sheet mass balance. Here, we investigate whether local changes in sea ice around the Greenland ice sheet
J. C. Stroeve, J. C. Stroeve, J. R. Mioduszewski, A. Rennermalm, L. N. Boisvert, M. Tedesco, D. Robinson   +6 more
doaj   +1 more source