Results 61 to 70 of about 153,318 (201)

The tipping points and early warning indicators for Pine Island Glacier, West Antarctica [PDF]

The Cryosphere, 2021
Mass loss from the Antarctic Ice Sheet is the main source of uncertainty in projections of future sea-level rise, with important implications for coastal regions worldwide. Central to ongoing and future changes is the marine ice sheet instability: once a
S. H. R. Rosier, R. Reese, J. F. Donges, J. F. Donges, J. De Rydt, G. H. Gudmundsson, R. Winkelmann, R. Winkelmann   +7 more
doaj   +1 more source

Modeling the Deformation Regime of Thwaites Glacier, West Antarctica, Using a Simple Flow Relation for Ice Anisotropy (ESTAR)

Journal of Geophysical Research - Earth Surface, 2022
Ice deformation dominates the evolution of ice shelf flow and the slow‐moving regions in the interior of ice sheets. However, deformation may be poorly represented in large‐scale ice sheet models that use the Glen flow relation, due to its questionable ...
F. McCormack, R. Warner, H. Seroussi, C. Dow, J. L. Roberts, A. Treverrow   +5 more
semanticscholar   +1 more source

Ocean access beneath the southwest tributary of Pine Island Glacier, West Antarctica

Annals of Glaciology, 2018
The catchments of Pine Island Glacier and Thwaites Glacier in the Amundsen Sea Embayment are two of the largest, most rapidly changing, and potentially unstable sectors of the West Antarctic Ice Sheet.
Dustin M. Schroeder, Andrew M. Hilger, John D. Paden, Duncan A. Young, Hugh F. J. Corr   +4 more
doaj   +1 more source

Inferring Ice Fabric From Birefringence Loss in Airborne Radargrams: Application to the Eastern Shear Margin of Thwaites Glacier, West Antarctica

Journal of Geophysical Research - Earth Surface, 2021
In airborne radargrams, undulating periodic patterns in amplitude that overprint traditional radiostratigraphic layering are occasionally observed, however, they have yet to be analyzed from a geophysical or glaciological perspective. We present evidence
T. J. Young, D. Schroeder, T. Jordan, Poul Christoffersen, S. Tulaczyk, R. Culberg, N. Bienert   +6 more
semanticscholar   +1 more source

Increased rate of acceleration on Pine Island Glacier strongly coupled to changes in gravitational driving stress [PDF]

, 2009
Pine Island Glacier, Antarctica, has been undergoing several related changes for at least two decades; these include acceleration, thinning and grounding line retreat.
Scott, J. B. T., Vaughan, D G, Bingham, R. G., R. G. Bingham, Pritchard, H.D., Vaughan, D. G., Bingham, R.G., Pritchard, Hamish D., Scott, J.B.T., Smith, A. M., Vaughan, D.G., Pritchard, H. D., J. B. T. Scott, Gudmundsson, G H, Smith, A M, Pritchard, H D, Smith, A.M., Gudmundsson, G.H., D. G. Vaughan, Vaughan, David G., G. H. Gudmundsson, Scott, J B T, H. D. Pritchard, Bingham, R G, Gudmundsson, G. H., Gudmundsson, Hilmar, A. M. Smith, Bingham, Robert G.   +27 more
core   +2 more sources

Coupled ice–ocean interactions during future retreat of West Antarctic ice streams in the Amundsen Sea sector [PDF]

The Cryosphere
The Amundsen Sea sector has some of the fastest-thinning ice shelves in Antarctica, caused by high, ocean-driven basal melt rates, which can lead to increased ice streamflow, causing increased sea level rise (SLR) contributions. In this study, we present
D. T. Bett, A. T. Bradley, A. T. Bradley, C. R. Williams, P. R. Holland, R. J. Arthern, D. N. Goldberg   +6 more
doaj   +1 more source

Returning Climate to Present Day May not Reduce Antarctic Mass Loss

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 10, October 2026.
Abstract Using the BISICLES ice sheet model, we explore the Antarctic Ice Sheet's response over the 22nd century under two climate scenarios. In the return scenario, climate forcing is returned to present‐day levels (2015) in either 2050 or 2100 and then held constant until 2200.
Mira Adhikari, Daniel F. Martin, Tamsin L. Edwards, Antony J. Payne, James F. O’Neill, Peter J. Irvine, Jonathan Barnsley   +6 more
wiley   +1 more source

Connected subglacial lake drainage beneath Thwaites Glacier, West Antarctica [PDF]

The Cryosphere, 2017
We present conventional and swath altimetry data from CryoSat-2, revealing a system of subglacial lakes that drained between June 2013 and January 2014 under the central part of Thwaites Glacier, West Antarctica (TWG).
B. E. Smith, N. Gourmelen, A. Huth, I. Joughin   +3 more
doaj   +1 more source

Circumpolar Effects of a Velocity‐Restoring Scheme for Antarctic Fast Ice on Shelf Waters and Ice Shelf Melt Simulated by NEMO4‐SI3

Journal of Geophysical Research: Oceans, Volume 131, Issue 10, October 2026.
Abstract Dense water formation in the Southern Ocean plays a key role in the global ocean overturning circulation, affecting the distribution of heat, carbon, oxygen, and nutrients. Fast ice stays immobile while blocking sea ice flow, favoring the opening of coastal polynyas, where intense air‐sea exchanges drive sea ice production and ocean ...
N. Pirlet, T. Fichefet, M. Vancoppenolle, C. de Lavergne, N. C. Jourdain   +4 more
wiley   +1 more source

Scalable Phase‐Field Implementation of Crack Evolution (SPICE) for Modeling Surface Crevasse Growth and Interaction in Glaciers

Journal of Advances in Modeling Earth Systems, Volume 18, Issue 10, October 2026.
Abstract Iceberg calving driven by crevasse propagation is an important source of ice loss from the Greenland and Antarctic ice sheets. However, simulating crevasse growth and interaction in 3D, spanning meters to kilometers length scales, remains computationally challenging for high‐fidelity models based on nonlocal continuum damage mechanics and ...
Abhinav Gupta, Duc Tien Nguyen, Ravindra Duddu, Meghana Ranganathan, Alexander Robel   +4 more
wiley   +1 more source