Results 71 to 80 of about 692 (179)

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

open access: yesArctic, 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

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

open access: yesDiversity, 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   +4 more
doaj   +1 more source

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

open access: yesЛëд 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   +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]

open access: yesThe 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   +7 more
doaj   +1 more source

Dynamic subglacial meltwater history archived in Antarctic subglacial lake sediments

open access: yesGeological 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   +12 more
openaire   +2 more sources

Subglacial lakes and jökulhlaups in Iceland

open access: yesGlobal 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

A subglacial hydrologic drainage hypothesis for silt sorting and deposition during retreat in Pine Island Bay

open access: yesAnnals of Glaciology, 2019
Late Holocene sediment deposits in Pine Island Bay, West Antarctica, are hypothesized to be linked to intensive meltwater drainage during the retreat of the paleo-Pine Island Ice Stream after the Last Glacial Maximum. The uppermost sediment units show an
Dustin M. Schroeder   +3 more
doaj   +1 more source

The Future of Antarctic Subglacial Lake Exploration

open access: yesEos, 2015
Antarctic Subglacial Lake Exploration: First Results and Future Plans; Chicheley Hall, U.
Martin Siegert   +2 more
openaire   +1 more source

Active-source seismic characterization of subglacial lakes: numerical modeling, field validation, and implications for Antarctic exploration [PDF]

open access: yesThe Cryosphere
Subglacial lakes offer unique opportunities to study ice sheet dynamics, microbial life, and climate evolution. Motivated by the upcoming seismic survey of Qilin Subglacial Lake, this study constructs a representative subglacial lake model and extends it
K. Lu, Y. Chen
doaj   +1 more source

Home - About - Disclaimer - Privacy