Results 11 to 20 of about 771,010 (290)
Subglacial hydrology and the formation of ice streams [PDF]
Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2014 Antarctic ice streams are associated with pressurized subglacial meltwater but the role this water plays in the dynamics of the streams is not known. To address this, we present a model of subglacial water flow below ice sheets, and particularly below ice streams.
Richard Katz, A C Fowler
exaly +6 more sources
Frequency response of ice streams. [PDF]
Proc Math Phys Eng Sci, 2012 Changes at the grounding line of ice streams have consequences for inland ice dynamics and hence sea level. Despite substantial evidence documenting upstream propagation of frontal change, the mechanisms by which these changes are transmitted inland are not well understood.
Williams CR, Hindmarsh RC, Arthern RJ.
europepmc +5 more sources
Antarctic palaeo-ice streams [PDF]
Earth-Science Reviews, 2012 We review the geomorphological, sedimentological and chronological evidence for palaeo-ice streams on the continental shelf of Antarctica and use this information to investigate basal conditions and processes, and to identify factors controlling grounding-line retreat.
Andreas Vieli +2 more
exaly +8 more sources
A new approach to inferring basal drag and ice rheology in ice streams, with applications to West Antarctic Ice Streams [PDF]
Journal of Glaciology, 2021 Drag at the bed and along the lateral margins are the primary forces resisting flow in outlet glaciers. Simultaneously inferring these parameters is challenging since basal drag and ice viscosity are coupled in the momentum balance, which governs ice ...
Meghana Ranganathan +3 more
doaj +6 more sources
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. +2 more
openaire +4 more sources
Ice sheet extent and early deglacial history of the southwestern sector of the Greenland ice sheet [PDF]
, 2009 The offshore and coastal geomorphology of southwest Greenland records evidence for the advance and decay of the Greenland Ice Sheet during the Last Glacial Maximum.
Long, A.J. +6 more
core +9 more sources
Ice-stream flow switching by up-ice propagation of instabilities along glacial marginal troughs [PDF]
The Cryosphere, 2019 Ice-stream networks constitute the arteries of ice sheets through which large volumes of glacial ice are rapidly delivered from the continent to the ocean.
E. Brouard, P. Lajeunesse
doaj +1 more source
PALAEO-ICE STREAMS IN THE NORTH-EASTERN LAURENTIDE ICE SHEET
, 2007 This thesis presents a palaeoglaciological study aimed to determine the location, geometry and temporal evolution of palaeo-ice streams of the north-easternmost Laurentide Ice Sheet. The work was accomplished through the geomorphological interpretation of satellite imagery over 3.19 x 106 km2 of the Canadian Arctic, using a glaciological inversion ...
De Angelis, Hernán
core +5 more sources
Subglacial hydrological control on flow of an Antarctic Peninsula palaeo-ice stream [PDF]
The Cryosphere, 2019 Basal hydrological systems play an important role in controlling the dynamic behaviour of ice streams. Data showing their morphology and relationship to geological substrates beneath modern ice streams are, however, sparse and difficult to collect.
R. D. Larter +13 more
doaj +1 more source
Journal of Glaciology, 2023 Investigations of the time-dependent behavior of marine ice sheets and their sensitivity to basal conditions require numerical models because existing theoretical analyses focus only on steady-state configurations primarily with a power-law basal shear ...
Olga Sergienko, Marianne Haseloff
doaj +1 more source