Results 131 to 140 of about 917,323 (294)

Grounding-line basal melt rates determined using radar-derived internal stratigraphy [PDF]

open access: yes, 2010
We use ice-penetrating radar data across grounding lines of Siple Dome and Roosevelt Island, Antarctica, to measure the spatial pattern, magnitude and duration of sub-ice-shelf melting at these locations.
Catania, Ginny   +2 more
core   +2 more sources

Modeling the dynamic response of outlet glaciers to observed ice-shelf thinning in the Bellingshausen Sea Sector, West Antarctica

open access: yesJournal of Glaciology, 2018
Satellite observations of gravity anomalies, ice-surface elevation and glacier velocity show significant increases in net grounded-ice-mass loss over the past decade along the Bellingshausen Sea sector (BSS), West Antarctica, in areas where warm (>1°C ...
BRENT M. MINCHEW   +4 more
doaj   +1 more source

Basal channels drive active surface hydrology and transverse ice shelf fracture

open access: yesScience Advances, 2018
Ice shelf basal channels cause transverse fractures that can be exacerbated by surface rivers, culminating in calving. Ice shelves control sea-level rise through frictional resistance, which slows the seaward flow of grounded glacial ice.
C. Dow   +8 more
semanticscholar   +1 more source

Observed vulnerability of Filchner-Ronne Ice Shelf to wind-driven inflow of warm deep water [PDF]

open access: yes, 2016
The average rate of melting at the base of the large Filchner-Ronne Ice Shelf in the southern Weddell Sea is currently low, but projected to increase dramatically within the next century.
Darelius, E., Fer, I., Nicholls, K.W.
core   +2 more sources

Feedbacks between ice and ocean dynamics at the West Antarctic Filchner-Ronne Ice Shelf in future global warming scenarios [PDF]

open access: yes, 2016
The ice flow at the margins of the West Antarctic Ice Sheet is moderated by large ice shelves. Their buttressing effect substantially controls the mass balance of the WAIS and thus its contribution to sea level rise.
Goeller, Sebastian, Timmermann, Ralph
core  

Evolution of surface velocities and ice discharge of Larsen B outlet glaciers from 1995 to 2013 [PDF]

open access: yes, 2014
We use repeat-pass SAR data to produce detailed maps of surface motion covering the glaciers draining into the former Larsen B ice shelf, Antarctic Peninsula, for different epochs between 1995 and 2013.
De Rydt, J.   +7 more
core   +4 more sources

Turbulence Observations Beneath Larsen C Ice Shelf, Antarctica

open access: yesJournal of Geophysical Research: Oceans, 2019
Increased ocean‐driven basal melting beneath Antarctic ice shelves causes grounded ice to flow into the ocean at an accelerated rate, with consequences for global sea level.
P. Davis, K. Nicholls
semanticscholar   +1 more source

Tidal and Thermal Stresses Drive Seismicity Along a Major Ross Ice Shelf Rift

open access: yesGeophysical Research Letters, 2019
Understanding deformation in ice shelves is necessary to evaluate the response of ice shelves to thinning. We study microseismicity associated with ice shelf deformation using nine broadband seismographs deployed near a rift on the Ross Ice Shelf.
S. Olinger   +8 more
semanticscholar   +1 more source

Millennial‐Scale Vulnerability of the Antarctic Ice Sheet to Regional Ice Shelf Collapse

open access: yesGeophysical Research Letters, 2019
The Antarctic Ice Sheet (AIS) remains the largest uncertainty in projections of future sea level rise. A likely climate‐driven vulnerability of the AIS is thinning of floating ice shelves resulting from surface‐melt‐driven hydrofracture or incursion of ...
Daniel F. Martin, S. Cornford, A. Payne
semanticscholar   +1 more source

Impact of ocean forcing on the Aurora Basin in the 21st and 22nd centuries [PDF]

open access: yes, 2016
The grounded ice in the Totten and Dalton glaciers is an essential component of the buttressing for the marine-based Aurora basin, and hence their stability is important to the future rate of mass loss from East Antarctica. Totten and Vanderford glaciers
B. K. Galton-Fenzi   +7 more
core   +3 more sources

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