Results 111 to 120 of about 7,235 (213)

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

Sci Adv, 2021
Couston LA, Siegert M.
europepmc   +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

Source of Lake Vostok Cations Constrained with Strontium Isotopes [PDF]

, 2016
Lake Vostok is the largest sub-glacial lake in Antarctica. The primary source of our current knowledge regarding the geochemistry and biology of the lake comes from the analysis of refrozen lake water associated with ice core drilling. Several sources of
George Royston-Bishop, John C. Priscu, Kathleen A. Welch, Martyn Tranter, W. Berry Lyons   +4 more
core   +3 more sources

Dynamic subglacial meltwater history archived in Antarctic subglacial lake sediments

Geological Society of America Bulletin
Abstract There is a paucity of records on decadal to millennial scales archiving the evolution of the Antarctic subglacial hydrologic system, leaving a gap in our knowledge of the links between meltwater drainage and ice behavior. We employed a suite of sedimentological and geochemical methods to assess the stratigraphic distribution of ...
Timothy D. Campbell, Mark L. Skidmore, Molly O. Patterson, John E. Dore, David M. Harwood, Amy Leventer, Alexander B. Michaud, Brad E. Rosenheim, Matthew R. Siegfried, August J. Steigmeyer, Martyn Tranter, Ryan A. Venturelli, John C. Priscu   +12 more
openaire   +2 more sources

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

Controls on rapid supraglacial lake drainage in West Greenland: An Exploratory Data Analysis approach [PDF]

, 2018
The controls on rapid surface lake drainage on the Greenland ice sheet (GrIS) remain uncertain, making it challenging to incorporate lake drainage into models of GrIS hydrology, and so to determine the ice-dynamic impact of meltwater reaching the ice ...
Arnold, NS, Banwell, AF, Williamson, AG, Willis, IC   +3 more
core   +1 more source

The Future of Antarctic Subglacial Lake Exploration

Eos, 2015
Antarctic Subglacial Lake Exploration: First Results and Future Plans; Chicheley Hall, U.
Martin Siegert, John Priscu, Irina Alekhina   +2 more
openaire   +1 more source

Methane Beneath Greenlands Ice Sheet Is Being Released [PDF]

Methane is a potent greenhouse gas, but a complete accounting of global methane sources and sinks is still ongoing. Sediments beneath glaciers and ice sheets harbour carbon reserves that, under certain conditions, can be converted to methane.
Andrews, Lauren C.
core   +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

Jökulhlaups in Iceland : sources, release and drainage

, 2010
Jökulhlaups in Iceland may originate from marginal or subglacial sources of water melted by atmospheric processes, permanent geothermal heat or volcanic eruptions.
Björnsson, Helgi
core   +1 more source