Results 11 to 20 of about 70,309 (180)

Weakening of the pinning point buttressing Thwaites Glacier, West Antarctica [PDF]

The Cryosphere, 2022
The Thwaites Eastern Ice Shelf buttresses a significant portion of Thwaites Glacier through contact with a pinning point 40 km offshore of the present grounding line. Predicting future rates of Thwaites Glacier’s contribution to sea-level rise depends on
C. T. Wild, K. E. Alley, A. Muto, M. Truffer, T. A. Scambos, E. C. Pettit   +5 more
doaj   +6 more sources

Intermittent structural weakening and acceleration of the Thwaites Glacier Tongue between 2000 and 2018 [PDF]

Journal of Glaciology, 2020
Evolving conditions at the terminus of Thwaites Glacier will be important in determining the rate of its future sea-level contribution over the coming decades.
B. W. J. Miles, C. R. Stokes, A. Jenkins, J. R. Jordan, S. S. R. Jamieson, G. H. Gudmundsson   +5 more
doaj   +2 more sources

Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica [PDF]

Frontiers in Earth Science, 2022
Subglacial meltwater drainage can enhance localized melting along grounding zones and beneath the ice shelves of marine-terminating glaciers. Efforts to constrain the evolution of subglacial hydrology and the resulting influence on ice stability in space
A. P. Lepp, L. M. Simkins, J. B. Anderson, R. W. Clark, J. S. Wellner, C-D. Hillenbrand, J. A. Smith, A. A. Lehrmann, R. Totten, R. D. Larter, K. A. Hogan, F. O. Nitsche, A. G. C. Graham, L. Wacker   +13 more
doaj   +2 more sources

The influence of subglacial lake discharge on Thwaites Glacier ice-shelf melting and grounding-line retreat [PDF]

Nature Communications
The retreat of the Antarctic Ice Sheet is conventionally attributed to increased ocean melting of ice shelves, potentially enhanced by internal instability from grounding lines near retrograde bed slopes.
N. Gourmelen, L. Jakob, P. R. Holland, P. Dutrieux, D. Goldberg, S. Bevan, A. Luckman, G. Malczyk   +7 more
doaj   +2 more sources

Evidence for a water system transition beneath Thwaites Glacier, West Antarctica. [PDF]

Proc Natl Acad Sci U S A, 2013
Thwaites Glacier is one of the largest, most rapidly changing glaciers on Earth, and its landward-sloping bed reaches the interior of the marine West Antarctic Ice Sheet, which impounds enough ice to yield meters of sea-level rise. Marine ice sheets with landward-sloping beds have a potentially unstable configuration in which acceleration can initiate ...
Schroeder DM, Blankenship DD, Young DA.
europepmc   +4 more sources

Velocity map of the Thwaites Glacier catchment, West Antarctica [PDF]

Journal of Glaciology, 2004
AbstractThe two-dimensional surface velocity of Thwaites Glacier, West Antarctica, was mapped with 23 ascending- and 22 descending-orbit European Remote-sensing Satellite synthetic aperture radar (ERS SAR) interferograms (time range 1995–2000). The velocity map covers 175 500 km2 from the Amundsen Coast to the southern turning point of the satellite ...
Lang, Oliver, Rabus, Bernd, Dech, Stefan
openaire   +3 more sources

West Antarctic ice retreat and paleoceanography in the Amundsen Sea in the warm early Pliocene [PDF]

Nature Communications
Mass loss from polar ice sheets is poorly constrained in estimates of future global sea-level rise. Today, the marine-based West Antarctic Ice Sheet is losing mass at an accelerating rate, most notably in the Thwaites and Pine Island glacier drainage ...
Sandra Passchier, Claus-Dieter Hillenbrand, Sidney Hemming, Werner Ehrmann, Thomas Frederichs, Steve M. Bohaty, Ronald Leon, Olga Libman-Roshal, Lisbeth Mino-Moreira, Karsten Gohl, Julia Wellner   +10 more
doaj   +2 more sources

Unsteady flow inferred for Thwaites Glacier, and comparison with Pine Island Glacier, West Antarctica [PDF]

Journal of Glaciology, 2002
AbstractWe present a comparison of surface velocities in 1996, derived from interferometric synthetic aperture radar, with an estimate of the long-term, depth-averaged velocity based on the assumption of steady-state flow for both Pine Island Glacier and its neighbour, Thwaites Glacier, West Antarctica.
Bamber, JL, Rignot, E
openaire   +5 more sources

Mass Loss From Thwaites Glacier Continues Even Without Ocean Melting

Geophysical Research Letters
Pine Island and Thwaites glaciers dominate Antarctica's sea‐level contribution. However, it remains unclear whether their ice loss is driven by anomalously warm present‐day ocean conditions, perhaps linked to anthropogenic climate change, or are an ...
C. Rosie Williams, Matt Trevers, Sainan Sun, Paul R. Holland, David T. Bett, Robert J. Arthern, Alexander T. Bradley   +6 more
doaj   +2 more sources

Recent Observations of Thwaites Glacier, West Antarctica Are Consistent With High Rates of Loss in Next 50 Years

Geophysical Research Letters
Thwaites Glacier has experienced accelerating mass loss, with rates increasing over fivefold since the 1990s. We apply transient calibration to two independent ice‐sheet models (STREAMICE and ISSM) using time‐varying velocity and surface elevation data ...
Daniel N. Goldberg, Mathieu Morlighem, Noel Gourmelen   +2 more
doaj   +2 more sources