Results 21 to 30 of about 7,208 (230)

Application of first arrival seismic tomography in a glaciated basin: implications for paleo-ice stream development

Journal of Glaciology, 2023
Ice streams are sites of ice-sheet drainage and together with other processes, such as calving, have an impact on deglaciation rates and ice-sheet mass balance.
Nicholas J. Zaremba, Christopher A. Scholz, Robert Moucha   +2 more
doaj   +1 more source

Late Pleistocene glacial terminations accelerated by proglacial lakes

Climate of the Past, 2023
Abstract. During the glacial cycles of the past 800 000 years, Eurasia and North America were periodically covered by large ice sheets, causing up to 100 m of sea-level change. While Late Pleistocene glacial cycles typically lasted 80 000–120 000 years, the termination phases were completed in only 10 000 years.
M. D. W. Scherrenberg, C. J. Berends, R. S. W. van de Wal, R. S. W. van de Wal   +3 more
openaire   +5 more sources

Supraglacial forcing of subglacial drainage in the ablation zone of the Greenland ice sheet [PDF]

, 2011
Peer reviewedPublisher ...
Alley, Andrew Sole, Bartholomew, Box, Catania, Collins, Das, Douglas Mair, Fenn, Hock, Ian Bartholomew, Jemma Wadham, Kamb, McMillan, Nienow, Palmer, Parizek, Peter Nienow, Pfeffer, Pimentel, Schoof, Shepherd, Shreve, Skidmore, Steven Palmer, Sundal, Sundal, Swift, Thomas Cowton, Van de Wal, van der Veen, Zwally   +31 more
core   +4 more sources

Evolution of drainage system morphology at a land-terminating Greenland outlet glacier [PDF]

, 2012
This work was funded by the UK Natural Environment Research Council (through grants to Nienow, Mair, and Wadham, and a studentship to Bartholomew), the Edinburgh University Moss Centenary Scholarship (Cowton and Bartholomew), and a Carnegie Research ...
Alley, Bartholomaus, Bartholomew, Bartholomew, Bartholomew, Bartholomew, Behrens, Bhatia, Bingham, Collins, Collins, Cowton, Cuffey, Das, Fountain, Fountain, Fountain, Gulley, Hock, Hock, Hoffman, Howat, Hubbard, Hubbard, Iken, Iken, Iken, Kamb, Kamb, Lewis, Lliboutry, Mair, Mair, Nienow, Nienow, Palmer, Pimentel, Rignot, Röthlisberger, Schoof, Schuler, Schuler, Seaberg, Sole, Sundal, Swift, Veen, Wal, Walder, Werder, Willis, Willis, Zwally   +52 more
core   +3 more sources

Glacial Isostatic Adjustment Shapes Proglacial Lakes Over Glacial Cycles [PDF]

Geophysical Research Letters, 2022
AbstractAs ice sheets load Earth's surface, they produce ice‐marginal depressions which, when filled with meltwater, become proglacial lakes. We include self‐consistently evolving proglacial lakes in a glacial isostatic adjustment (GIA) model and apply it to the Laurentide ice sheet over the last glacial cycle.
J. Austermann, A. D. Wickert, T. Pico, J. Kingslake, K. L. Callaghan, R. C. Creel   +5 more
openaire   +2 more sources

Long-term records of glacier evolution and associated proglacial lakes on the Tibetan Plateau (1976‒2020)

Big Earth Data, 2022
The glaciers on the Tibetan Plateau (TP) constitute critical sources of water for the proglacial lakes and many rivers found downstream. To better understand the evolution of glaciers and the impact of this on proglacial lakes, seven glaciers ...
Drolma Lhakpa, Yubao Qiu, Pa Lhak, Lijuan Shi, Maoce Cheng, Bin Cheng   +5 more
doaj   +1 more source

Brief communication: Subglacial lake drainage beneath Isunguata Sermia, West Greenland: geomorphic and ice dynamic effects [PDF]

The Cryosphere, 2019
We report three active subglacial lakes within 2 km of the lateral margin of Isunguata Sermia, West Greenland, identified by differencing time-stamped ArcticDEM strips.
S. J. Livingstone, A. J. Sole, R. D. Storrar, D. Harrison, N. Ross, J. Bowling   +5 more
doaj   +1 more source

Mid-Miocene cooling and the extinction of tundra in continental Antarctica [PDF]

, 2008
A major obstacle in understanding the evolution of Cenozoic climate has been the lack of well dated terrestrial evidence from high-latitude, glaciated regions.
Ashworth, A.C., Hedenas, L., Hemming, S.R., Johnson, J.V., Leng, Melanie, Lewis, A.R., Machlus, M.L., Marchant, D.R., Newton, A.E., Raine, I., Willenbring, J.K., Williams, M., Wolfe, A.P.   +12 more
core   +1 more source

Controls on Alpine Lake Dynamics, Tien Shan, Central Asia

Remote Sensing, 2022
The number and area of alpine lakes in Tien Shan (TS) are rapidly growing in response to a warming climate and retreating glaciers. This paper presents a comparative analysis of lake classification and changes by dividing alpine lakes (within a 10 km ...
Qifei Zhang, Yaning Chen, Zhi Li, Gonghuan Fang, Yanyun Xiang, Yupeng Li   +5 more
doaj   +1 more source

Dam type and lake location characterize ice-marginal lake area change in Alaska and NW Canada between 1984 and 2019 [PDF]

The Cryosphere, 2022
Ice-marginal lakes impact glacier mass balance, water resources, and ecosystem dynamics and can produce catastrophic glacial lake outburst floods (GLOFs) via sudden drainage.
B. Rick, D. McGrath, W. Armstrong, S. W. McCoy   +3 more
doaj   +1 more source