Results 51 to 60 of about 102,620 (291)

Activation of Existing Surface Crevasses Has Limited Impact on Grounding Line Flux of Antarctic Ice Streams

open access: yesGeophysical Research Letters, 2023
Recent studies have identified widespread vulnerable ice shelf regions in Antarctica which are both highly buttressed and susceptible to crevasse hydrofracturing, raising concern for potential crevasse driven ice‐shelf collapse and future sea level rise.
C. Gerli, S. Rosier, G. H. Gudmundsson
doaj   +1 more source

Modeling Antarctic tides in response to ice shelf thinning and retreat [PDF]

open access: yes, 2014
Tides play an important role in ice sheet dynamics by modulating ice stream velocity, fracturing, and moving ice shelves and mixing water beneath them.
Green, J. A. M.   +3 more
core   +6 more sources

The role of ocean cooling in setting glacial southern source bottom water salinity [PDF]

open access: yes, 2012
At the Last Glacial Maximum (LGM), the salinity contrast between northern source deep water and southern source bottom water was reversed with respect to the contrast today.
Adkins, J. F.   +3 more
core   +1 more source

Emulating present and future simulations of melt rates at the base of Antarctic ice shelves with neural networks [PDF]

open access: green, 2023
Clara Burgard   +7 more
openalex   +2 more sources

Ergothioneine supplementation improves pup phenotype and survival in a murine model of spinal muscular atrophy

open access: yesFEBS Letters, EarlyView.
Spinal muscular atrophy (SMA) is a genetic disease affecting motor neurons. Individuals with SMA experience mitochondrial dysfunction and oxidative stress. The aim of the study was to investigate the effect of an antioxidant and neuroprotective substance, ergothioneine (ERGO), on an SMNΔ7 mouse model of SMA.
Francesca Cadile   +8 more
wiley   +1 more source

The effect of landfast sea ice buttressing on ice dynamic speedup in the Larsen B embayment, Antarctica [PDF]

open access: yesThe Cryosphere
We observe the evacuation of 11-year-old landfast sea ice in the Larsen B embayment on the East Antarctic Peninsula in January 2022, which was in part triggered by warm atmospheric conditions and strong offshore winds.
T. Surawy-Stepney   +15 more
doaj   +1 more source

Investigation of land ice-ocean interaction with a fully coupled ice-ocean model, Part 1: Model description and behavior [PDF]

open access: yes, 2012
Antarctic ice shelves interact closely with the ocean cavities beneath them, with ice shelf geometry influencing ocean cavity circulation, and heat from the ocean driving changes in the ice shelves, as well as the grounded ice streams that feed them.
A. Gnanadesikan   +62 more
core   +1 more source

Microbial exopolysaccharide production by polyextremophiles in the adaptation to multiple extremes

open access: yesFEBS Letters, EarlyView.
Polyextremophiles are microorganisms that endure multiple extreme conditions by various adaptation strategies that also include the production of exopolysaccharides (EPSs). This review provides an integrated perspective on EPS biosynthesis, function, and regulation in these organisms, emphasizing their critical role in survival and highlighting their ...
Tracey M Gloster, Ebru Toksoy Öner
wiley   +1 more source

Seasonal variability of ocean heat transport and ice-shelf basal melt around Antarctica [PDF]

open access: yesThe Cryosphere
The delivery of ocean heat to Antarctic ice shelves is due to intrusions of waters warmer than the local freezing point temperature. Changes in the supply of ocean heat will determine how rapidly ice shelves melt at their base, which affects Antarctic ...
F. Boeira Dias   +7 more
doaj   +1 more source

Simulated melt rates for the Totten and Dalton ice shelves [PDF]

open access: yesOcean Science, 2014
The Totten Glacier is rapidly losing mass. It has been suggested that this mass loss is driven by changes in oceanic forcing; however, the details of the ice–ocean interaction are unknown.
D. E. Gwyther   +3 more
doaj   +1 more source

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