Results 91 to 100 of about 1,622 (202)

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

Historical Records of Nutrient Loading Into End‐Member Mid‐Latitude Lakes

Journal of Geophysical Research: Biogeosciences, Volume 131, Issue 7, July 2026.
Abstract Human‐induced environmental changes impact lakes in temperate regions, but detailed lake basin histories that pre‐date instrumental records are limited. Most paleolimnological reconstructions are used to examine single lakes in isolation, making it difficult to separate regional forcings from morphological influences on a sedimentary signal ...
M. A. Brannon, C. A. Scholz, M. L. Chipman, C. T. Driscoll   +3 more
wiley   +1 more source

Flow‐pattern evolution of the Scandinavian Ice Sheet indicated by the subglacial lineation record over Norway, Sweden and Finland

Boreas, Volume 55, Issue 3, Page 612-669, July 2026.
We present a 25‐stage reconstruction of the ice‐flow pattern evolution of the Scandinavian Ice Sheet based on mapping and analysis of ~240 000 subglacial lineations and lineation fields across Norway, Sweden, Finland, and parts of NW Russia. Our reconstruction uses a glacial geomorphological inversion approach, in which we generated 611 individual ...
Frances E. G. Butcher, Anna L. C. Hughes, Helen E. Dulfer, Christopher D. Clark, Jeremy C. Ely, Emma L. M. Lewington, Benjamin M. Boyes, Alex C. Scoffield, Stephen Howcutt, Christiaan R. Diemont   +9 more
wiley   +1 more source

Entrained Water in Basal Ice Suppresses Radar Bed‐Echo Power at Active Subglacial Lakes

Geophysical Research Letters
Subglacial lakes have been mapped across Antarctica with two methods, radio‐echo sounding (RES) and ice‐surface deformation. At sites where both are coincident, these methods typically provide conflicting interpretations about the ice‐bed interface. With
B. H. Hills, M. R. Siegfried, D. M. Schroeder   +2 more
doaj   +1 more source

Modeling δD-δ18O Steady-State of Well-Sealed Perennially Ice-Covered Lakes and Their Recharge Source: Examples From Lake Untersee and Lake Vostok, Antarctica

Frontiers in Earth Science, 2020
Perennially ice-covered lakes that are tightly sealed from the atmosphere represent a unique group of polar lakes. In these lakes, the δD-δ18O evolution of the water column and steady-state conditions are controlled by rates of recharge and freezing at ...
Benoit Faucher, Denis Lacelle, David A. Fisher, Klemens Weisleitner, Dale T. Andersen   +4 more
doaj   +1 more source

Circulation model for subglacial lakes [PDF]

, 2004
A circulation model for Antarctic subglacial lakes is presented. This model differs from previous models used for Lake Vostok in that the momentum equations are non-hydrostatic.
Siegert, MJ, Bates, PD, Lee, V, Ellis Evans, C   +3 more
core  

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

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

Detecting and monitoring subglacial lakes beneath the Greenland Ice Sheet [PDF]

, 2022
In this thesis I develop novel methods and datasets, using airborne radio-echo sounding and high-resolution satellite-derived digital elevation models, to improve the understanding of subglacial lake distribution and activity beneath the Greenland Ice ...
Bowling, Jade, McMillan, Mal, Leeson, Amber   +2 more
core  

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

Monitoring Activity of the Subglacial Lake Mercer Based on CryoSat-2 and ICESat-2 Altimetry Data from 2011 to 2023 [PDF]

The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences
Active subglacial lakes are capable of exchanging and transporting water through water flow paths, thus having an important impact on ice sheet movement and even on the regional mass balance.
P. Luo, P. Luo, G. Qiao, G. Qiao, Z. Qu, Z. Qu, S. Popov, S. Popov   +7 more
doaj   +1 more source