Results 31 to 40 of about 6,699 (183)

The influence of strain rate and presence of dispersed second phases on the deformation behaviour of polycrystalline D2O ice

Journal of Glaciology, 2019
This contribution discusses results obtained from 3-D neutron diffraction and 2-D fabric analyser in situ deformation experiments on laboratory-prepared polycrystalline deuterated ice and ice containing a second phase.
CHRISTOPHER J.L. WILSON, NICHOLAS J. R. HUNTER, VLADIMIR LUZIN, MARK PETERNELL, SANDRA PIAZOLO   +4 more
doaj   +1 more source

Modelling debris transport within glaciers by advection in a full-Stokes ice flow model [PDF]

The Cryosphere, 2018
Glaciers with extensive surface debris cover respond differently to climate forcing than those without supraglacial debris. In order to include debris-covered glaciers in projections of glaciogenic runoff and sea level rise and to understand the ...
A. Wirbel, A. H. Jarosch, L. Nicholson
doaj   +1 more source

Flow and structure in a dendritic glacier with bedrock steps

Journal of Glaciology, 2017
We analyse ice flow and structural glaciology of Shackleton Glacier, a dendritic glacier with multiple icefalls in the Canadian Rockies. A major tributary-trunk junction allows us to investigate the potential of tributaries to alter trunk flow and ...
HESTER JISKOOT, THOMAS A FOX, WESLEY VAN WYCHEN   +2 more
doaj   +1 more source

Structural, tectonic and glaciological controls on the evolution of fjord landscapes

Geomorphology, 2009
Abstract The fjord landscape of South America, stretching ~ 1500 km between Golfo Corcovado (~ 43°S) and Tierra del Fuego (~ 56°S), is the largest continuous fjord landscape on Earth. This paper presents the results of new structural geological and geomorphological mapping of this landscape using optical satellite images and digital elevation models.
Glasser, Neil F., Ghiglione, Matias
openaire   +2 more sources

Structural glaciology of the fast-moving Jakobshavn Isbræ, Greenland, compared to the surging Bering Glacier, Alaska, U.S.A. [PDF]

Annals of Glaciology, 2000
AbstractCrevasse patterns revealing mostly brittle deformation on glacier surfaces are analyzed based on video images collected during systematic overflights of Jakobshavn Isbræ, West Greenland, the Earths continuously fastest moving ice stream, in 1996 and 1997. Crevasse patterns on the surface of the central ice stream are distinct. All crevasses are
Helmut Mayer, Ute Christina Herzfeld
openaire   +1 more source

Structural provinces of the Ross Ice Shelf, Antarctica

Annals of Glaciology, 2017
The surface of the Ross Ice Shelf (RIS) is textured by flow stripes, crevasses and other features related to ice flow and deformation. Here, moderate resolution optical satellite images are used to map and classify regions of the RIS characterized by ...
Christine M. LeDoux, Christina L. Hulbe, Martin P. Forbes, Ted A. Scambos, Karen Alley   +4 more
doaj   +1 more source

Former dynamic behaviour of a cold-based valley glacier on Svalbard revealed by basal ice and structural glaciology investigations [PDF]

Journal of Glaciology, 2015
AbstractLarge numbers of small valley glaciers on Svalbard were thicker and more extensive during the Little Ice Age (LIA), demonstrated by prominent ice-cored moraines up to several kilometres beyond present-day margins. The majority of these glaciers have since experienced a long period of strongly negative mass balance during the 20th century and ...
Lovell, H., Fleming, E.J., Benn, D.I., Hubbard, B., Lukas, S., Naegeli, K.   +5 more
openaire   +4 more sources

Response of glacier flow and structure to proglacial lake development and climate at Fjallsjökull, south-east Iceland

Journal of Glaciology, 2019
Over recent decades, the number of outlet glaciers terminating in lakes in Iceland has increased in line with climate warming. The mass-balance changes of these lake-terminating outlet glaciers are sensitive to rising air temperatures, due to altered ...
REBECCA DELL, RACHEL CARR, EMRYS PHILLIPS, ANDREW J. RUSSELL   +3 more
doaj   +1 more source

Anomalous luminescence of subglacial sediment at Haut glacier d'Arolla, Switzerland - a consequence of resetting at the glacier bed? [PDF]

, 2010
<p>Luminescence has the potential to elucidate glacial geomorphic processes because primary glacial sediment sources and transport pathways are associated with contrasting degrees of exposure to light.
Aitken, Aitken, Alley, Alley, Armitage, Bailey, Bateman, Bateman, Berger, Blair, Blake, Boulton, Burbidge, Copland, Dreimanis, Fischer, Fuchs, Fukuchi, Galbraith, Gemmell, Gemmell, Goodsell, Grenfell, Grum, Gurnell, Harbor, Hubbard, Krbetschek, Lee, Lian, Liritzis, Lukas, Murray, Nienow, Pegau, Rhodes, Rhodes, Rink, Sanderson, Sanderson, Sanderson, Sharp, Singhvi, Stone, Swift, Swift, Thomas, Toyoda, Tranter, Wallinga, Wallinga, Wintle, Wintle, Zöller   +53 more
core   +2 more sources

PANGAEA information system for glaciological data management [PDF]

, 1998
Specific parameters determined on cores from continental ice sheets or glaciers can be used to reconstruct former climate. To use this scientific resource effectively an information system is needed which guarantees consistent longtime storage of data ...
Diepenbroek, Michael, Fütterer, Dieter, Grobe, Hannes, Miller, Heinrich, Reinke, Manfred, Sieger, Rainer   +5 more
core   +1 more source