Results 111 to 120 of about 153,318 (201)

Direct Geologic Constraints on the Timing of Late Holocene Ice Thickening in the Amundsen Sea Embayment, Antarctica

Geophysical Research Letters
Constraining past West Antarctic Ice Sheet (WAIS) change helps validate numerical models simulating future ice sheet dynamics. Following rapid deglaciation during the mid‐Holocene, ice near Thwaites Glacier was ∼35 m thinner than present; however, the ...
Keir A. Nichols, Jonathan R. Adams, Katie Brown, Roger C. Creel, Marion A. McKenzie, Ryan A. Venturelli, Joanne S. Johnson, Dylan H. Rood, Klaus Wilcken, John Woodward, Stephen J. Roberts   +10 more
doaj   +1 more source

Velocity measurements and changes in position of Thwaites Glacier/iceberg tongue from aerial photography, Landsat images and NOAA AVHRR data

, 1993
The Thwaites Glacier/iceberg tongue complex has been a significant feature of the Antarctic coastline for at least 50 years. In 1986, major changes began to occur in this area.
J.G. Ferrigno, R.J. Allen, K.F. Mullins, W.G. Gould, B.K. Lucchitta, A.L. Allison   +5 more
core   +2 more sources

Warm water flow and mixing beneath Thwaites Glacier ice shelf, West Antarctica

, 2020
The fate of the West Antarctic Ice Sheet is the largest remaining uncertainty in predicting sea-level rise through the next century, and its most vulnerable and rapidly changing outlet is Thwaites Glacier .
Wellner, Julia, Wåhlin, Anna, Queste, Bastien, Larter, Robert, Heywood, Karen, Hogan, Kelly, Pettit, Erin, Graham, Alastair, Boehme, Lars   +8 more
core   +1 more source

Climate variability accelerates Thwaites Glacier collapse

Abstract Over the last two decades, the contribution of the West Antarctic Ice Sheet to sea level rise has doubled, and a substantial fraction of this mass loss has been linked to climate variability. Here, we analyse the future behaviour of Thwaites glacier under a noisy climate and show that climate variability alone is sufficient to ...
Daniel Moreno-Parada, Violaine Coulon, Frank Pattyn   +2 more
openaire   +1 more source

Airborne radar sounding evidence for deformable sediments and outcropping bedrock beneath Thwaites Glacier, West Antarctica

, 2014
The geologic and morphologic records of prior ice sheet configurations show evidence of rapid, back-stepping, meltwater intensive retreats. However, the potential for such a retreat in a contemporary glacier depends on the lithology of the current ice ...
Blankenship, Donald D., Anderson, John B., Donald D. Blankenship, Schroeder, Dustin M., Alexandra E. Witus, Young, Duncan A., Duncan A. Young, Dustin M. Schroeder, Witus, Alexandra E., John B. Anderson   +9 more
core   +1 more source

Changes in West Antarctic ice stream dynamics observed with ALOS PALSAR data

Geophysical Research Letters, 2008
The Advanced Land Observation System (ALOS) Phased‐Array Synthetic‐Aperture Radar (PALSAR) is an L‐band frequency (1.27 GHz) radar capable of continental‐scale interferometric observations of ice sheet motion.
Eric Rignot
doaj   +1 more source

The effect of the present-day imbalance on schematic and climate forced simulations of the West Antarctic Ice Sheet collapse [PDF]

The Cryosphere
Recent observations reveal that the West Antarctic Ice Sheet is rapidly thinning, particularly at its two largest outlet glaciers, Pine Island Glacier and Thwaites Glacier, while East Antarctica remains relatively stable. Ice sheet model projections over
T. van den Akker, T. van den Akker, T. van den Akker, W. H. Lipscomb, G. R. Leguy, W. J. van de Berg, R. S. W. van de Wal, R. S. W. van de Wal, R. S. W. van de Wal   +8 more
doaj   +1 more source

SAR image Thwaites glacier

, 2022
SAR image Thwaites ...
Martin Rogers
core   +1 more source

Datasets used to condition inversions of shear stress at the ice-bed interface on Thwaites Glacier

, 2022
Included in this handle are input data used in the inversions described in the paper "The impact of basal roughness on Thwaites Glacier sliding." These include surface elevation, and basal topographies used to construct the meshes that define the ...
Christianson, Knut, Hoffman, Andrew
core  

Bed-type variability and till (dis)continuity beneath Thwaites Glacier, West Antarctica

Annals of Glaciology, 2019
Recent seismic measurements from upper Thwaites Glacier indicate that the bed-type variability is closely related to the along-flow basal topography. In high-relief subglacial highlands, stoss sides of topographic highs have a relatively higher acoustic ...
Atsuhiro Muto, Richard B. Alley, Byron R. Parizek, Sridhar Anandakrishnan   +3 more
doaj   +1 more source