Results 81 to 90 of about 7,235 (213)

Assessment of glacier lakes development potential in the Central Caucasus

Лëд и снег, 2020
Glacier mass loss and consequent terminus retreat lead to formation and growth of glacier lakes. In Caucasus outbursts of glacial lakes formed in recent decades have led to human casualties and significant damage. In this study the location and volume of
I. I. Lavrentiev, D. A. Petrakov, S. S. Kutuzov, N. V. Kovalenko, A. M. Smirnov   +4 more
doaj   +1 more source

Boundary conditions of an active West Antarctic subglacial lake: implications for storage of water beneath the ice sheet [PDF]

The Cryosphere, 2014
Repeat-pass ICESat altimetry has revealed 124 discrete surface height changes across the Antarctic Ice Sheet, interpreted to be caused by subglacial lake discharges (surface lowering) and inputs (surface uplift).
M. J. Siegert, N. Ross, H. Corr, B. Smith, T. Jordan, R. G. Bingham, F. Ferraccioli, D. M. Rippin, A. Le Brocq   +8 more
doaj   +1 more source

Mechanisms of Surface Meltwater Ponding and Drainage on the Greenland Ice Sheet Revealed Using SkySat Imagery and Deep Learning

AGU Advances, Volume 7, Issue 2, April 2026.
Abstract Surface meltwater impacts Greenland Ice Sheet mass balance indirectly by reducing albedo and promoting hydrofracture. However, fully understanding both processes requires accurate mapping of small‐scale features such as ponds, channels, and moulins that govern meltwater formation and drainage. Here we investigate surface water dynamics at high
J. C. Ryan, R. T. Datta, S. W. Cooley
wiley   +1 more source

Intraplate transtensional tectonics in the East Antarctic Craton: insight from buried subglacial bedrock in the Lake Vostok – Dome C region [PDF]

, 2013
""This study presents the results of forward numerical models of a series of sections of the Aurora Trench (East Antarctica). derived from radio echo-sounding data that allowed to reconstruct the 3D shape of the Aurora Fault, a crustal listric.
cianfarra p, salvini f
core   +1 more source

The Development of a Low Power GNSS System, as Part of a Drone Assisted Environmental Sensor Network for a Glacial Environment

Earth and Space Science, Volume 13, Issue 4, April 2026.
Abstract We show the development of an innovative Internet of Things Real Time Kinematic Global Navigation Satellite System, to study the short‐term changes in surface velocity of two adjacent Icelandic glaciers, in order to understand the response of glaciers to climate change.
K. Martinez, S. Attia, G. Bragg, A. Andrews, N. R. Baurley, J. K. Hart   +5 more
wiley   +1 more source

Governance of the Exploration of Subglacial Antarctica

Frontiers in Environmental Science, 2018
Subglacial lakes, and their surrounding aqueous environments, are known to be viable yet extreme habitats for microbial life that may hold records of climate change spanning hundreds of thousands of years. Since the detection of Lake Vostok in 1996 plans
Martin John Siegert, Mahlon C. Kennicutt
doaj   +1 more source

Glacier Physics of the Puget Lobe, Southwest Cordilleran Ice Sheet [PDF]

, 1991
The Puget lobe, the southwest-most extension of the Cordilleran ice sheet, provides an excellent opportunity to examine the connection between glacier physics and the resulting products of glaciation.
Booth, Derek B.
core   +1 more source

Limnological conditions in Subglacial Lake Vostok, Antarctica [PDF]

Limnology and Oceanography, 2006
Subglacial Lake Vostok is located ~4 km beneath the surface of the East Antarctic Ice Sheet and has been isolated from the atmosphere for ≫15 million yr. Concerns for environmental protection have prevented direct sampling of the lake water thus far. However, an ice core has been retrieved from above the lake in which the bottom ,85 m represents lake ...
Brent C. Christner, George Royston-Bishop, Christine M. Foreman, Brianna R. Arnold, Martyn Tranter, Kathleen A. Welch, W. Berry Lyons, Alexandre I. Tsapin, Michael Studinger, John C. Priscu   +9 more
openaire   +1 more source

Drivers of Benthic Iron Fluxes and the Pore‐Water Iron Isotopic Signature in Surface Sediments of South Georgia Fjords, Sub‐Antarctica

Global Biogeochemical Cycles, Volume 40, Issue 4, April 2026.
Abstract Benthic iron (Fe) fluxes from coastal sediments support phytoplankton blooms downstream of subpolar islands. We combine solid‐phase and pore‐water geochemical data, including its iron isotopic signature (δ56Feaq), to identify the main drivers of benthic Fe fluxes from sub‐Antarctic fjord and shelf sediments of South Georgia, and to evaluate ...
Berenice Ebner, Susann Henkel, Peter Kraal, Daniel Müller, Male Köster, Michael Staubwasser, Katja Laufer‐Meiser, Laura Kattein, Walter Geibert, Sabine Kasten   +9 more
wiley   +1 more source

Using Multimission Satellite Altimetry to Monitor Subglacial Hydrological Activities in the Totten Basin, East Antarctica

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
In East Antarctica, the largest thinning rates are observed at Totten Glacier in recent years. Hydrologic activity of the three active subglacial lakes (Totten1, Totten2, and Wilkes1) located on Totten Glacier may affect the ice sheet mass balance in the
Jun Liu, Lihui Chen, Denghui Tang, Huan Xie, Xiangbin Cui, Peinan Li   +5 more
doaj   +1 more source