Results 21 to 30 of about 582 (173)

The influence of a model subglacial lake on ice dynamics and internal layering [PDF]

The Cryosphere, 2016
As ice flows over a subglacial lake, the drop in bed resistance leads to an increase in ice velocities and a draw down of isochrones and cold ice. The ice surface flattens as it adjusts to the lack of resisting forces at the base. The rapid transition in
E. Gudlaugsson, A. Humbert, T. Kleiner, J. Kohler, K. Andreassen   +4 more
doaj   +1 more source

Progress toward globally complete frontal ablation estimates of marine-terminating glaciers

Annals of Glaciology, 2022
Knowledge of frontal ablation from marine-terminating glaciers (i.e., mass lost at the calving face) is critical for constraining glacier mass balance, improving projections of mass change, and identifying the processes that govern frontal mass loss ...
William Kochtitzky, Luke Copland, Wesley Van Wychen, Regine Hock, David R. Rounce, Hester Jiskoot, Ted A. Scambos, Mathieu Morlighem, Michalea King, Leo Cha, Luke Gould, Paige-Marie Merrill, Andrey Glazovsky, Romain Hugonnet, Tazio Strozzi, Brice Noël, Francisco Navarro, Romain Millan, Julian A. Dowdeswell, Alison Cook, Abigail Dalton, Shfaqat Khan, Jacek Jania   +22 more
doaj   +1 more source

Modelling last glacial cycle ice dynamics in the Alps [PDF]

The Cryosphere, 2018
The European Alps, the cradle of pioneering glacial studies, are one of the regions where geological markers of past glaciations are most abundant and well-studied.
J. Seguinot, J. Seguinot, S. Ivy-Ochs, G. Jouvet, M. Huss, M. Funk, F. Preusser   +6 more
doaj   +1 more source

Using a Web Map Service to map Little Ice Age glacier extents at regional scales

Annals of Glaciology, 2023
Extending the record of glacier area changes into the past improves our understanding of climate change impacts. Although analogue maps showing historic glacier extents are abundant, digital outlines from before the satellite era are sparse as the ...
Johannes Reinthaler, Frank Paul
doaj   +1 more source

Current trends of natural processes in Polar Regions of the Earth and prospects for the Russian polar research: The 11th conference in Sochi

Лëд и снег, 2016
On 5–7 October 2015 the All-Russian scientific conference «Results and prospects of studying natural environment in the Russian Arctic and other polar regions» was held in Sochi (south Russia).
M. Yu. Moskalevsky
doaj   +1 more source

Basal seismicity of the Northeast Greenland Ice Stream

Journal of Glaciology, 2020
Seismic studies of glaciers yield insights into spatio-temporal processes within and beneath glaciers on scales relevant to flow and deformation of the ice.
Ian W. McBrearty, Lucas K. Zoet, Sridhar Anandakrishnan   +2 more
doaj   +1 more source

Eurasian ice-sheet dynamics and sensitivity to subglacial hydrology

Journal of Glaciology, 2017
Ice-stream dynamics are strongly controlled by processes taking place at the ice/bed interface where subglacial water both lubricates the base and saturates any existing, underlying sediment. Large parts of the former Eurasian ice sheet were underlain by
EYTHOR GUDLAUGSSON, ANGELIKA HUMBERT, KARIN ANDREASSEN, CAROLINE C. CLASON, THOMAS KLEINER, SEBASTIAN BEYER   +5 more
doaj   +1 more source

Dark ice dynamics of the south-west Greenland Ice Sheet [PDF]

The Cryosphere, 2017
Runoff from the Greenland Ice Sheet (GrIS) has increased in recent years due largely to changes in atmospheric circulation and atmospheric warming. Albedo reductions resulting from these changes have amplified surface melting.
A. J. Tedstone, J. L. Bamber, J. M. Cook, C. J. Williamson, X. Fettweis, A. J. Hodson, A. J. Hodson, M. Tranter   +7 more
doaj   +1 more source

Surge-type glaciers in Kalaallit Nunaat (Greenland): distribution, temporal patterns and climatic controls

Journal of Glaciology, 2023
We present the first systematic inventory of surge-type glaciers for the whole of Greenland compiled from published datasets and multitemporal satellite images and digital elevation models.
Harold Lovell, Jonathan L. Carrivick, Owen King, Jenna L. Sutherland, Jacob C. Yde, Clare M. Boston, Jakub Małecki   +6 more
doaj   +1 more source

Distribution of soil nitrogen and nitrogenase activity in the forefield of a High Arctic receding glacier

Annals of Glaciology, 2018
Glaciers retreating in response to climate warming are progressively exposing primary mineral substrates to surface conditions. As primary production is constrained by nitrogen (N) availability in these emerging ecosystems, improving our understanding of
Thomas Turpin-Jelfs, Katerina Michaelides, Joshua J. Blacker, Liane G. Benning, James M. Williams, Alexandre M. Anesio   +5 more
doaj   +1 more source