Results 81 to 90 of about 145,942 (141)

The "tipping" temperature within Subglacial Lake Ellsworth, West Antarctica and its implications for lake access. [PDF]

, 2011
We present results from new geophysical data allowing modelling of the water flow within Subglacial Lake Ellsworth (SLE), West Antarctica. Our simulations indicate that this lake has a novel temperature distribution due to significantly thinner ice than ...
Woodward, J., Mayer, Christoph, Woodward, John, Smith, A.M., Smith, Andrew, Ross, Neil, Thoma, M., Ross, N., K. Grosfeld, Grosfeld, Klaus, C. Mayer, N. Ross, M. Thoma, Smith, A. M., Mayer, C., Grosfeld, K., Smith, Andy, A. M. Smith, J. Woodward, Thoma, Malte   +19 more
core   +2 more sources

Characterizing sub-glacial hydrology using radar simulations [PDF]

The Cryosphere
The structure and distribution of sub-glacial water directly influences Antarctic ice mass loss by reducing or enhancing basal shear stress and accelerating grounding line retreat. A common technique for detecting sub-glacial water involves analyzing the
C. Pierce, C. Gerekos, M. Skidmore, L. Beem, D. Blankenship, W. S. Lee, E. Adams, C.-K. Lee, J. Stutz   +8 more
doaj   +1 more source

Satellite Mapping of the Moulin Distribution Across the Entire Greenland Ice Sheet

Geophysical Research Letters, Volume 53, Issue 15, 16 August 2026.
Abstract Moulins drain meltwater from the surface of the Greenland Ice Sheet (GrIS), affecting subglacial hydrology. However, the moulin distribution across the entire GrIS remains unclear. Using 10‐m Sentinel‐2 imagery from the summer of 2019, we manually mapped GrIS‐wide major moulins, excluding undetectable minor moulins.
Yuhan Wang, Kang Yang, Jianing Wei, Wenzhuo Zhang, Dongyang Du, Wensong Zhang   +5 more
wiley   +1 more source

Previously undocumented subglacial lake beneath Flade Isblink stores most of catchment runoff and delays its release

Scientific Reports
We report the discovery of a previously undocumented subglacial lake beneath the Flade Isblink Ice Cap in North East Greenland. Using satellite Earth Observation data (ICESat-2 elevation data and Sentinel-1 Double Difference InSAR) in the period October ...
Mikkel Aaby Kruse, Nanna Bjørnholt Karlsson, Penelope How, Anders Kusk, Karina Nielsen, Magdalena Łucka, Louise Sandberg Sørensen   +6 more
doaj   +1 more source

Potential subglacial lake locations and meltwater drainage pathways beneath the Antarctic and Greenland ice sheets [PDF]

, 2013
We use the Shreve hydraulic potential equation as a simplified approach to investigate potential subglacial lake locations and meltwater drainage pathways beneath the Antarctic and Greenland ice sheets. We validate the method by demonstrating its ability
Clark, Chris, Woodward, J., Livingstone, Stephen, Woodward, John, Clark, C.D., Kingslake, J., Livingstone, S.J., Livingstone, S. J., Clark, C. D., J. Kingslake, Kingslake, Jonathan, C. D. Clark, S. J. Livingstone, J. Woodward   +13 more
core   +2 more sources

Greenland Subglacial Hydrology Model

, 2014
Ice sheet models are used to predict ice sheet retreat and sea level rise. As our climate changes,the need for these predictions becomes more critical.
Oswalt, Meghan K.
core  

Antarctic subglacial hydrology: an overview of current knowledge and forthcoming scientific challenges [PDF]

, 2014
Flood-carved landforms across the deglaciated terrain of Victoria Land, East Antarctica, provide convincing geomorphological evidence for the existence of subglacial drainage networks beneath the Antarctic Ice Sheets, and motivate research into the ...
Ashmore, David W, Ashmore, David W., Bingham, Robert G., Bingham, Robert G   +3 more
core   +1 more source

Capturing Runoff‐Driven Seasonal Velocity Variations of Fast‐Flowing Outlet Glaciers in Coupled Ice‐Hydrology Simulations

Geophysical Research Letters
The seasonal evolution of the subglacial drainage system is a critical control on velocity variations of Greenland marine‐terminating glaciers.
A. Jenson, J. M. Amundson, M. Truffer, A. Pohle, L. Ultee   +4 more
doaj   +1 more source

Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica [PDF]

Subglacial water plays an important role in ice sheet dynamics and stability. Subglacial lakes are often located at the onset of ice streams and have been hypothesised to enhance ice flow downstream by lubricating the ice–bed interface.
Siegert MJ, Smith AM, Uribe JA, Vaughan DG, Paxman GJG, Brisbourne AM, Jamieson SSR, Bentley MJ, Ross N, Rivera A, Napoleoni F, Gacitua G, Zamora R   +12 more
core   +2 more sources

Spatially distributed runoff at the grounding line of a large Greenlandic tidewater glacier inferred from plume modelling

Journal of Glaciology, 2017
Understanding the drivers of recent change at Greenlandic tidewater glaciers is of great importance if we are to predict how these glaciers will respond to climatic warming.
DONALD SLATER, PETER NIENOW, ANDREW SOLE, TOM COWTON, RUTH MOTTRAM, PETER LANGEN, DOUGLAS MAIR   +6 more
doaj   +1 more source