Results 31 to 40 of about 8,984 (223)

Seasonal variations in Greenland Ice Sheet motion : Inland extent and behaviour at higher elevations [PDF]

open access: yes, 2011
Peer ...
Bartholomew, I. D.   +6 more
core   +2 more sources

A Ten-Year Record of Supraglacial Lake Evolution and Rapid Drainage in West Greenland Using an Automated Processing Algorithm for Multispectral Imagery [PDF]

open access: yes, 2013
The rapid drainage of supraglacial lakes introduces large pulses of meltwater to the subglacial environment and creates moulins, surface-to-bed conduits for future melt.
Andrews, L. C.   +7 more
core   +2 more sources

Ice sheets as a significant source of highly reactive nanoparticulate iron to the oceans [PDF]

open access: yes, 2014
The Greenland and Antarctic Ice Sheets cover ~\n10% of global land surface, but are rarely considered as active components of the global iron cycle. The ocean waters around both ice sheets harbour highly productive coastal ecosystems, many of which are ...
Benning, Liane G.   +9 more
core   +2 more sources

Modeling Antarctic subglacial lake filling and drainage cycles [PDF]

open access: yesThe Cryosphere, 2016
The growth and drainage of active subglacial lakes in Antarctica has previously been inferred from analysis of ice surface altimetry data. We use a subglacial hydrology model applied to a synthetic Antarctic ice stream to examine internal controls on the
C. F. Dow   +3 more
doaj   +1 more source

Comment on Zwally and others (2015)-mass gains of the Antarctic ice sheet exceed losses [PDF]

open access: yes, 2016
In their article ‘Mass gains of the Antarctic ice sheet exceed losses’ Zwally and others (2015) choose Vostok Subglacial Lake as an exemplary region to demonstrate their inference of surface height change rates from a portion of the ICESat mission’s ...
Dietrich, R.   +2 more
core   +1 more source

Is Vostok lake in steady state? [PDF]

open access: yes, 2004
Stable-isotope (D and 18O) data from the Vostok (East Antarctica) ice core are used to explore whether or not subglacial Vostok lake is in isotopic steady state. A simple box model shows that the lake is likely to be in steady state on time-scales of the
George Royston-Bishop   +9 more
core   +4 more sources

Distribution and dynamics of Greenland subglacial lakes [PDF]

open access: yesNature Communications, 2019
AbstractFew subglacial lakes have been identified beneath the Greenland Ice Sheet (GrIS) despite extensive documentation in Antarctica, where periodic release of water can impact ice flow. Here we present an ice-sheet-wide survey of Greenland subglacial lakes, identifying 54 candidates from airborne radio-echo sounding, and 2 lakes from ice-surface ...
J. S. Bowling   +3 more
openaire   +4 more sources

Demonstration of a multi-technique approach to assess glacial microbial populations in the field [PDF]

open access: yes, 2016
The ability to perform microbial detection and characterization in-field at extreme environments, rather than on returned samples, has the potential to improve the efficiency, relevance and quantity of data from field campaigns.
Barnett, Megan J.   +4 more
core   +5 more sources

Assessment of thermobaric state and change of the mass balance in the subgkacial Lake Vostok after drilling-in

open access: yesЛëд и снег, 2015
Estimation of temperature and pressure conditions in the subglacial reservoirs is one of the most important tasks of modern subglacial research, since it provides an adequate tool for predicting the process of their accessing.
A. N. Markov, P. G. Talalay
doaj   +1 more source

The "tipping" temperature within Subglacial Lake Ellsworth, West Antarctica and its implications for lake access [PDF]

open access: yesThe Cryosphere, 2011
We present results from new geophysical data allowing modelling of the water flow within Subglacial Lake Ellsworth (SLE), West Antarctica. Our simulations indicate that this lake has a novel temperature distribution due to significantly thinner ice than ...
M. Thoma   +5 more
doaj   +1 more source

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