Results 101 to 110 of about 2,075 (207)

Antarctic subglacial hydrology: application of CryoSat-2 swath altimetry to the study of active subglacial lakes [PDF]

The Antarctic ice sheet is primarily drained by fast-flowing ice streams and glaciers, with water at the ice sheet's base believed to be a crucial factor in maintaining their high velocity through reduced friction.
Malczyk, George R.
core   +1 more source

Repeat Subglacial Lake Drainage and Filling beneath Thwaites Glacier [PDF]

, 2020
Active subglacial lakes have been identified throughout Antarctica, offering a window into subglacial environments and their impact on ice sheet mass balance. Here we use high‐resolution altimetry measurements from 2010 to 2019 to show that a lake system
Goldberg, D., J. Wuite, Gourmelen, N., Malczyk, G., T. Nagler, Wuite, J., N. Gourmelen, Nagler, T., G. Malczyk, D. Goldberg   +9 more
core   +1 more source

Prospects of obtaining samples of bottom sediments from subglacial lake Vostok

Записки Горного института, 2017
The paper proves the timeliness of obtaining and examining bottom sediments from subglacial Lake Vostok. Predictive geological section of Lake Vostok and information value of bottom sediments have been examined.
N. I. Vasil'ev, G. L. Leichenkov, E. A. Zagrivnyi   +2 more
doaj   +1 more source

Metagenomic analyses of a microbial assemblage in a subglacial lake beneath the Vatnajökull ice cap, Iceland. [PDF]

Front Microbiol, 2023
Vannier P, Farrant GK, Klonowski A, Gaidos E, Thorsteinsson T, Marteinsson VÞ.   +5 more
europepmc   +1 more source

Subglacial lakes and jökulhlaups in Iceland

Global and Planetary Change, 2003
Active volcanoes and hydrothermal systems underlie ice caps in Iceland. Glacier-volcano interactions produce meltwater that either drains toward the glacier margin or accumulates in subglacial lakes. Accumulated meltwater drains periodically in jokulhlaups from the subglacial lakes and occasionally during volcanic eruptions.
openaire   +1 more source

Deep clustering in subglacial radar reflectance reveals subglacial lakes

The Cryosphere
Abstract. Ice-penetrating radar (IPR) imaging is a valuable tool for observing the internal structure and bottom of ice sheets. Subglacial water bodies, also known as subglacial lakes, generally appear as distinct, bright, flat, and continuous reflections in IPR images. In this study, we use available IPR images from the Gamburtsev Subglacial Mountains
S. Dong, S. Dong, S. Dong, S. Dong, L. Fu, X. Tang, X. Tang, Z. Li, X. Chen   +8 more
openaire   +3 more sources

Seasonal speedup of a Greenland marine-terminating outlet glacier forced by surface melt-induced changes in subglacial hydrology [PDF]

, 2011
Peer ...
I. Joughin, King, M. A., Burke, M. J., Nienow, P.W., Sole, A. J., Joughin, I., Bartholomew, I.D., M. A. King, Mair, D. W. F., P. W. Nienow, Nienow, P. W., Bartholomew, I. D., King, M.A., M. J. Burke, A. J. Sole, D. W. F. Mair, I. D. Bartholomew, Sole, A.J., Burke, M.J., Mair, D.W.F.   +19 more
core   +1 more source

Eurasian ice-sheet dynamics and sensitivity to subglacial hydrology

Journal of Glaciology, 2017
Ice-stream dynamics are strongly controlled by processes taking place at the ice/bed interface where subglacial water both lubricates the base and saturates any existing, underlying sediment. Large parts of the former Eurasian ice sheet were underlain by
EYTHOR GUDLAUGSSON, ANGELIKA HUMBERT, KARIN ANDREASSEN, CAROLINE C. CLASON, THOMAS KLEINER, SEBASTIAN BEYER   +5 more
doaj   +1 more source

Implementation of in-field life detection and characterisation techniques in icy environments [PDF]

, 2010
An emerging trend towards non-laboratory based biological and microbiological marker analysis is occurring in multiple sectors of science and industry.
Barnett, Megan
core  

Topographic and hydrological controls on Subglacial Lake Ellsworth, West Antarctica [PDF]

, 2007
Subglacial Lake Ellsworth (SLE) was identified using reconnaissance data collected in the 1970s, here we present more detailed surveys. SLE lies beneath 3.2 km of ice in a subglacial valley in West Antarctica.
Corr, Hugh F.J., Vaughan, David, Rivera, Andrés, Corr, Hugh, Woodward, John, Rivera Ibáñez, Sergio, Wendt, Jens, Zamora, Rodrigo, Vaughan, David G., Corr, Hugh F. J.   +9 more
core   +1 more source