Results 1 to 10 of about 257,875 (187)

Preliminary Analysis of Life within a Former Subglacial Lake Sediment in Antarctica [PDF]

Diversity, 2013
Since the first descriptions of Antarctic subglacial lakes, there has been a growing interest and awareness of the possibility that life will exist and potentially thrive in these unique and little known environments. The unusual combination of selection
Gavin Burns, Charles S. Cockell, Michael A. S. Thorne, Dominic A. Hodgson, David A. Pearce   +4 more
doaj   +2 more sources

Determining Ice-Sheet Uplift Surrounding Subglacial Lakes with a Viscous Plate Model

Frontiers in Earth Science, 2017
We develop a viscous model of plate bending suitable for studying ice-sheet flexure due to subglacial lake filling and draining, and apply this model to determine the area of ice-sheet uplift surrounding a subglacial lake.
Ryan T. Walker, Ryan T. Walker, Mauro A. Werder, Christine F. Dow, Christine F. Dow, Sophie M. J. Nowicki   +5 more
doaj   +1 more source

Dynamic flows create potentially habitable conditions in Antarctic subglacial lakes. [PDF]

Sci Adv, 2021
Couston LA, Siegert M.
europepmc   +1 more source

On the factors and the degree of their effect on subglacial melt and changes in the state of Antarctic subglacial lakes

Arctic, Antarctic, and Alpine Research
This study presents the results of mathematical modeling of the degree of effects of various characteristics on basal conditions in Antarctica. The model is based on the numerical solution of the one-dimensional Stefan problem.
Alina Boronina, Sergey Popov, Gang Qiao
doaj   +1 more source

Climate Models Accurately Predict Ocean‐Going Meltwater Runoff From the Northwest Greenland Ice Sheet

Water Resources Research
Climatic surface mass balance (SMB) meltwater runoff models are used to estimate current and future Greenland Ice Sheet sea level contributions. However, comparisons between SMB model runoff and in situ proglacial river discharge observations show large ...
S. E. Esenther, L. C. Smith, A. Lewinter, C. Onclin, A. L. Boghosian, Å. K. Rennermalm, D. Petersen, L. C. Andrews   +7 more
doaj   +1 more source

ENVIRONMENT PROTECTION AND ENVIRONMENT MONITORING ISSUES IN THE PROJECTS OF SUBGLACIAL LAKES STUDIES IN ANTARCTICA

Лëд и снег, 2015
Antarctic subglacial lakes can represent extreme natural habitats for microorganisms from the position of their evolution and adaptation, as well as they can contain the information on Antarctic ice sheet history and climatic changes in their sediments ...
I. A. Alekhina, N. I. Vasiliev, V. Ya. Lipenkov   +2 more
doaj   +1 more source

Dynamic Boundaries of Antarctic Active Subglacial Lakes Reveal Underestimated Water Volume Change and Overestimated Lakebed Active Area

Geophysical Research Letters
This study revisited 158 documented active subglacial lakes across Antarctica, applying a height‐change anomaly delineation algorithm to CryoSat‐2 and ICESat‐2 satellite altimetry data to assemble a 14.75‐year (2010.5–2025.25) time series of active ...
W. Sauthoff, M. R. Siegfried, R. A. Venturelli, B. E. Smith   +3 more
doaj   +1 more source

Analysis of technologies and equipment for Antarctic subglacial lake research

Записки Горного института
Antarctica's subglacial hydrological system is a unique and still largely unexplored source of geological, paleoclimatic, and biological information that can be accessed only through direct investigation involving the sampling of water, suspended ...
Ilya V. Rakitin, Dmitrii A. Vasilev, Aleksei V. Bolshunov, Anatolii Yu. Ozhigin   +3 more
doaj  

Glacial lakes control ice flow: new insights from satellite SAR PO-SBAS observations in Duiya Glacier, southern Tibetan Plateau

International Journal of Digital Earth
This study investigates the effects of glacial lakes on the flow velocities of Duiya Glacier, southern Tibetan Plateau, by employing satellite Synthetic Aperture Radar (SAR) Pixel-Offset-Tracking Small-Baseline-Subset (PO-SBAS) technology. Duiya Glacier,
Yueling Shi, Tao Che, Jiawen Bao, Xiaowen Wang, Guoxiang Liu, Qiang Bie, Yi He, Renzhe Wu, Dongdong Feng   +8 more
doaj   +1 more source

Monitoring Subglacial Lake Activity in the David Glacier Region, East Antarctica, Using a DInSAR Displacement Integration Approach

IEEE Journal of Selected Topics in Applied Earth Observations and Remote Sensing
Subglacial lakes significantly influence ice sheet dynamics, necessitating precise monitoring of their activity. This study presents a novel approach that integrates differential interferometric synthetic aperture radar (DInSAR) displacements from ...
Taewook Kim, Hyangsun Han, Hoonyol Lee, Hyeontae Ju   +3 more
doaj   +1 more source