Results 101 to 110 of about 153,318 (201)

Determining the Character of Subglacial Sediments in the Ice‐Bedrock Interface Zone of Antarctica Using Horizontal‐to‐Vertical Spectral Ratios (HVSRs) of Seismic Ambient Noise

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 6, June 2026.
Abstract Interactions between the Antarctic Ice Sheet and the underlying solid Earth occur within the ice‐bedrock interface zone (IBIZ), containing structures of sediments and rocks that strongly influence ice sheet dynamics. Existing insights into the Antarctic IBIZ come primarily from interpretations of airborne geophysical data and active seismic ...
I. D. Kelly, A. M. Reading, T. Stål, B. Kulessa, A. García‐Jerez, J. Piña‐Flores, E. Paolucci, A. Tanzini, R. J. Turner, J. C. Magyar, A. P. Bassom   +10 more
wiley   +1 more source

Has a marine ice sheet collapse begun in the Thwaites Glacier basin, West Antarctica?

, 2014
Coordinates in polar stereographic format with standard lat of 71S, 0 deg rotation. Surface Mass Balance (SMB) values are in water equivalent units (m/yr). Contact Ian Joughin, ian@apl.washington.edu, for further information.Data used to constain model
Joughin, Ian, Smith, Benjamin E., Medley, Brooke   +2 more
core   +1 more source

The Influence of Sea Ice and Ice Mélange on Outlet Glacier Dynamics in the Arctic and Antarctic: Recent Progress and Future Challenges

Reviews of Geophysics, Volume 64, Issue 2, June 2026.
Abstract Sea ice is situated close to the termini of many outlet glaciers in the Arctic and Antarctic and has the potential to influence their dynamics and, therefore, their contribution to sea level rise. However, the nature, prevalence, and ice‐dynamic significance of sea ice‐glacier interactions remains subject to several open questions.
Katherine A. Deakin, Chris R. Stokes, Stewart S. R. Jamieson, J. Rachel Carr   +3 more
wiley   +1 more source

Seashells and Penguin Bones Reveal Thwaites Glacier’s Quiet Past

Eos, 2022
Antarctica’s Thwaites and Pine Island Glaciers are melting faster than they have in the past 5,500 years, new evidence shows. Against expectations, their pasts have been remarkably stable.
openaire   +1 more source

Drivers of Basal Melt Variability for Pine Island Glacier Ice Shelf: Ocean Forcing Versus Geometric Feedback

Geophysical Research Letters, Volume 53, Issue 10, 28 May 2026.
Abstract Since the 1970s, Pine Island Glacier has exhibited thinning, acceleration, and retreat. During the last decade, the ice shelf has undergone major geometric changes, whilst the quantity and temperature of modified Circumpolar Deep Water on the Amundsen Sea continental shelf fluctuated significantly.
Katie Lowery, Paul R. Holland, Pierre Dutrieux, Anna E. Hogg, Noel Gourmelen   +4 more
wiley   +1 more source

Impacts of Glacial Isostatic Adjustment on Antarctic Subglacial Water Routing Since the Last Glacial Maximum

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 5, May 2026.
Abstract The bedrock beneath the Antarctic Ice Sheet has experienced widespread viscoelastic deformation as a response to ice‐sheet changes from the Last Glacial Maximum (LGM) to present day. The combined changes of the ice sheet and the bedrock most likely had impacted subglacial water routes.
Linda Pan, Emma J. MacKie, Jerry X. Mitrovica, Stewart S. R. Jamieson, Olga V. Sergienko, Robert P. Ackert Jr., Kaighin A. McColl   +6 more
wiley   +1 more source

Vibroseismic measurements on Thwaites Glacier, Antarctica from 2022/23 and 2023/24

Vibroseismic surveys were conducted on Thwaites Glacier in West Antarctica in two consecutive seasons 2022/23 and 2023/24, as part of the International Thwaites Glacier Collaboration's project GHOST (Geophysical Habitat of Subglacial Thwaites).
Zeising, Ole, Anandakrishnan, Sridhar, Brisbourne, Alex, Eisen, Olaf, Hofstede, Coen Matthijs   +4 more
core   +1 more source

Inward Migration of the Shear Margins at Thwaites Glacier

, 2022
Codebase used for manuscript Inward Migration of the Shear Margins at Thwaites ...
Summers, Paul T, Suckale, Jenny, Elsworth, Cooper W, Dow, Christine F   +3 more
core   +1 more source

Lateral Fluxes Drive Basal Melting Beneath Thwaites Eastern Ice Shelf, West Antarctica

Geophysical Research Letters
Thwaites Glacier is one of the fastest‐changing ice‐ocean systems in Antarctica. Basal melting beneath Thwaites' floating ice shelf, especially around pinning points and at the grounding line, sets the rate of ice loss and Thwaites' contribution to ...
Peter E. D. Davis, Keith W. Nicholls, David M. Holland, Britney E. Schmidt, Peter Washam, Bieito Fernández Castro, Kiya L. Riverman, James A. Smith, Paul G. D. Anker, Andrew D. Mullen, Daniel Dichek, Elisabeth Clyne, Keith Makinson   +12 more
doaj   +1 more source

Impacts of bed topography resolution on sea-level rise projections from coupled subglacial hydrology and ice dynamics for Thwaites Glacier, Antarctica.

Philosophical transactions. Series A, Mathematical, physical, and engineering sciences
Ice-sheet models require explicit knowledge of the underlying bed. However, much remains unknown regarding the subglacial environment owing to difficulties associated with measuring it.
S. Ehrenfeucht, C. Dow
semanticscholar   +1 more source