Results 121 to 130 of about 3,473 (303)

Winter motion mediates dynamic response of the Greenland Ice Sheet to warmer summers [PDF]

, 2013
Peer ...
Nienow, Peter, Mair, Douglas, Mair, D., King, M.A., Cowton, Thomas, Bartholomew, Ian, Sole, A., Tedstone, A., Tedstone, Andrew, Sole, Andrew, Cowton, Tom, King, Matt A., Cowton, T., Bartholomew, I., King, Matt A, Nienow, P.   +15 more
core   +1 more source

Thorncliffe Formation: A proglacial to subglacial lacustrine basin sequence, Greater Toronto Region, Canada

Boreas, EarlyView.
Map of Lower sediment (LS) thickness is a surrogate for the distribution of Thorncliffe Formation (TF) and ~75% of TF thickness from the slope of Niagara Escarpment east to Brighton. Inset images show the LS sequence at the Don Valleys brickyards (DVBY) and undeformed TF sand and gravel (~15 m) below Newmarket Till (NT) at sites L and Co.
David R. Sharpe, Charles E. Logan, Ross D. Knight, Andre J.‐M. Pugin   +3 more
wiley   +1 more source

Improved representation of laminar and turbulent sheet flow in subglacial drainage models

Journal of Glaciology
Subglacial hydrology models struggle to reproduce seasonal drainage patterns that are consistent with observed subglacial water pressures and surface velocities. We modify the standard sheet-flow parameterization within a coupled sheet–channel subglacial
Tim Hill, Gwenn Elizabeth Flowers, Matthew James Hoffman, Derek Bingham, Mauro Angelo Werder   +4 more
doaj   +1 more source

Mechanical forcing of water pressure in a hydraulically isolated reach beneath Western Greenland's ablation zone

Annals of Glaciology, 2016
A suite of surface and basal measurements during and after borehole drilling is used to perform in situ investigation of the local basal drainage system and pressure forcing in western Greenland. Drill and borehole water temperature were monitored during
Toby W. Meierbachtol, Joel T. Harper, Neil F. Humphrey, Patrick J. Wright   +3 more
doaj   +1 more source

Revised classification of glaciofluvial landforms in the Finnish sector of the Fennoscandian Ice Sheet

Boreas, EarlyView.
Effective and sustainable land use, conservation, and the use of geological resources (incl. raw materials, aggregates and groundwater) require a clear classification system of sedimentary units, with well‐defined vocabulary and unified mapping practices.
Jussi Hovikoski, Jukka‐Pekka Palmu, Tapio Väänänen, Markus Valkama, Antti E. K. Ojala, Satu Putkinen, Reijo Pitkäranta   +6 more
wiley   +1 more source

Introduction to modelling glacier hydrology

, 2020
Conference slides and presentation on Introduction to Modelling Glacier Hydrology presented at the UKPN Workshop: Modelling in the Polar Sciences, Sheffield, UK, 2-4 April ...
Richard Hodgkins (1254879)
core  

Hydrology and dynamics of a land-terminating Greenland outlet glacier [PDF]

, 2012
The purpose of this thesis is to investigate the hydrology and dynamics of a land-terminating outlet glacier on the western margin of the Greenland Ice Sheet (GrIS).
Bartholomew, Ian D.
core   +1 more source

Towards an ‘absolute’ timing of biostratigraphic and environmental phases from the Saalian late glacial to the Weichselian pleniglacial in central Europe—Insights from a lacustrine succession in Lichtenberg, northern Germany

Boreas, EarlyView.
Palynological records are central to the biostratigraphic subdivision of the Late Pleistocene in central Europe. Yet many interglacial and interstadial phases—such as the Eemian, Brörup and Odderade—remain only poorly constrained in time due to limited numerical dating.
Michael Hein, Thomas Kasper, Alexis Badai Samudra, Martin Theuerkauf, Markus Lothar Fischer, Neda Rahimzadeh, Maria Sekar Proborukmi, Sonja Rigterink, Agnieszka Gruszczyńska, Christian Zeeden, Simon Parfitt, David John Horne, Lucy Roberts, Dustin White, Lisa Brogmus, Hans von Suchodoletz, Tobias Lauer, Marcel Weiss, David Colin Tanner, Brigitte Urban   +19 more
wiley   +1 more source

Monitoring ice-capped active Volćan Villarrica, southern Chile, using terrestrial photography combined with automatic weather stations and global positioning systems

, 2008
Volc´an Villarrica (39◦25'12" S, 71◦56'27"W; 2847ma.s.l.) is an active ice-capped volcano located in the Chilean lake district. The surface energy balance and glacier frontal variations have been monitored for several years, using automatic weather ...
Rivera, Andrés, Clavero, Jorge, Brock, Ben, Corripio, Javier G., Wendt, Jens, Brock, Benjamin   +5 more
core   +1 more source

Palaeoglaciations in the Polar and Subpolar Ural Mountains

Boreas, EarlyView.
The Ural Mountains form a major physiographic boundary between the East European Plain and West Siberia, both repeatedly glaciated during the Pleistocene by the Barents–Kara ice sheet. Although the present‐day topography reflects significant glacial modification, the extent, chronology and interaction of mountain glaciers with the Barents–Kara ice ...
Bartosz Kurjanski, Matteo Spagnolo, Irina Bushueva, Iestyn Barr, Brice R. Rea, Olga Solomina, Stanislav Kutuzov   +6 more
wiley   +1 more source