Results 71 to 80 of about 153,318 (201)

Toward an Improved Understanding of the Antarctic Coastal Zone and Its Contribution to Future Global Sea Level

Reviews of Geophysics, Volume 64, Issue 3, September 2026.
Abstract Understanding the coastal zone of the Antarctic Ice Sheet (AIS), where it interacts with the Southern Ocean and warmer air masses, is crucial for predicting Antarctica's influence on the global climate and sea level. This region has multiple tipping mechanisms that could trigger large, rapid, and potentially irreversible changes in the AIS ...
Kenichi Matsuoka, Geir Moholdt, Jennifer F. Arthur, Julien A. Bodart, Xiangbin Cui, Fausto Ferraccioli, René Forsberg, Vikram Goel, Tom A. Jordan, Felicity S. McCormack, Ruth Mottram, Hamish D. Pritchard, Calvin Shackleton, Kirsty J. Tinto, Fredrik Boberg, Marie G. P. Cavitte, Reinhard Drews, Pierre Dutrieux, Jörg Ebbing, Olaf Eisen, Hannes Eisermann, Alex S. Gardner, Chad A. Greene, Nicholas Holschuh, Stewart S. R. Jamieson, Byeong‐Hoon Kim, Naomi Krauzig, Bernd Kulessa, Carlton Leuschen, Jilu Li, Lu Li, Jonas Liebsch, Joseph A. MacGregor, Emma MacKie, Anirudha Mahagaonkar, Joséphine Maton, Mathieu Morlighem, Francisco Navarro, Peter D. Neff, Inès N. Otosaka, Frank Pattyn, Antonia Ruppel, Rebecca J. Sanderson, Hélène Seroussi, Andrew Shepherd, Matthew R. Siegfried, Thomas Slater, Arjen P. Stroeven, Michael Studinger, Thomas Teisberg, Ryan A. Venturelli, Jeremy P. Winberry, Chen Zhao, Lu An, Jonathan L. Bamber, Robin E. Bell, Robert G. Bingham, Johanna Brehmer‐Moltmann, Graeme Eagles, Jamin Greenbaum, Jorn Gronset, Won Sang Lee, Emmanuel Le Meur, Lenneke M. Jong, Katrin Lindbäck, Sven Lidström, Mareen Lösing, Masahiro Minowa, Mayuri Pandey, Yogesh Ray, Mirko Scheinert, Dustin M. Schroeder, Thorsten Seehaus, Kaian Shahateet, Daniel Steinhage, Xueyuan Tang, Drew Taylor, Hannah Verboncoeur, Junjun Yang, Duncan A. Young   +79 more
wiley   +1 more source

Gravity analyses for the crustal structure and subglacial geology of West Antarctica, particularly beneath Thwaites Glacier [PDF]

, 2008
textThe West Antarctic Ice Sheet (WAIS) is mostly grounded in broad, deep basins (down to 2.5 km below sea level) that are stretched between five crustal blocks. The geometry of the bedrock, being mostly below sea level, induces a fundamental instability
Diehl, Theresa Marie, 1981-
core  

Characterizing the subglacial environment of lower Thwaites Glacier using radar modeling

Journal of Glaciology
Understanding the spatial heterogeneity beneath Thwaites Glacier, West Antarctica, is vital to projecting its impact on future sea levels. Radar-echo sounding (RES) is commonly used to infer subglacial conditions, but these data can be challenging to ...
Chris Pierce, Mark Skidmore, Lucas Beem, Donald D. Blankenship, Edward E. Adams, Christopher Gerekos, Won Sang Lee   +6 more
doaj   +1 more source

Hysteresis of idealized, instability-prone outlet glaciers in response to pinning-point buttressing variation [PDF]

The Cryosphere
Ice rises or ice rumples act as ice-shelf pinning points that can play an important role in regulating the ice discharge of marine outlet glaciers. As an example, the observed recent gradual ungrounding of the ice shelf of West Antarctica's Thwaites ...
J. Feldmann, A. Levermann, A. Levermann, A. Levermann, R. Winkelmann, R. Winkelmann   +5 more
doaj   +1 more source

Reinforced ridges in Thwaites Glacier yield insights into resolution requirements for coupled ice sheet and solid Earth models

The Cryosphere
. Grounding line retreat in the Amundsen Sea Embayment (ASE) is expected to drive the largest Antarctic contribution to sea-level rise over the coming centuries.
Luc Houriez, E. Larour, L. Caron, N. Schlegel, S. Adhikari, E. Ivins, T. Pelle, H. Seroussi, Eric Darve, Martin Fischer   +9 more
semanticscholar   +1 more source

Authigenic Be Isotopes Record Circumpolar Deep Water Inflow and Subglacial Outflow in Antarctic Shelf Sediments

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract The Antarctic Ice Sheet (AIS) has recently undergone accelerating mass loss driven primarily by basal melting associated with Circumpolar Deep Water (CDW) inflow onto the continental shelf. However, temporal variability in CDW inflow and its role in mass loss from the AIS over longer timescales remain uncertain because the duration of the ...
Yuri Yamazaki, Yusuke Suganuma, Takuya Itaki, Atsuko Amano, Takeshige Ishiwa, Daisuke Hirano, Motohiro Hirabayashi, Hiroyuki Matsuzaki, Takeyasu Yamagata, Yuki Tokuda, Takeshi Sugimura, Takeshi Tamura, Kazuya Kusahara, Jun'ichi Okuno, Kosei E. Yamaguchi   +14 more
wiley   +1 more source

Systematic Detection of Glacial Earthquakes in Thwaites Glacier, West Antarctica, by Regional Surface Waves

Geophysical Research Letters
Glacial earthquakes are a class of seismic sources generated by the capsize of icebergs calved from glacier termini. Although being teleseismically observed in Greenland glaciers, seismic detection of such events in Antarctica has been elusive.
T. Phạm
semanticscholar   +1 more source

Responses of the Pine Island and Thwaites glaciers to melt and sliding parameterizations

The Cryosphere
Abstract. The Pine Island and Thwaites glaciers are the two largest contributors to sea level rise from Antarctica. Here we examine the influence of basal friction and ice shelf basal melt in determining projected losses. We examine both Weertman and Coulomb friction laws with explicit weakening as the ice thins to flotation, which many friction laws ...
Ian Joughin, Daniel Shapero, Pierre Dutrieux   +2 more
openaire   +5 more sources

Distinct Groundwater Regimes in West Antarctic Sedimentary Basins Inferred From Magnetotelluric Imaging

Journal of Geophysical Research: Solid Earth, Volume 131, Issue 9, September 2026.
Abstract Subglacial sedimentary basins in Antarctica are hypothesized to modulate ice flow and biogeochemical cycles via groundwater and geothermal feedbacks, yet their properties remain poorly constrained. Here, we present a joint quantitative analysis of new magnetotelluric (MT) data acquired at Thwaites Glacier (TG) and WAIS Divide, alongside legacy
Siobhan F. Killingbeck, Bernd Kulessa, Rebecca Pearce, Alex Brisbourne, Louise Borthwick, Felipe Napoleoni, Sridhar Anandakrishnan, Martyn Unsworth, Atsuhiro Muto   +8 more
wiley   +1 more source

Thwaites Glacier thins and retreats fastest where ice-shelf channels intersect its grounding zone

The Cryosphere
. Antarctic ice shelves buttress the flow of the ice sheet but are vulnerable to increased basal melting from contact with a warming ocean and increased mass loss from calving due to changing flow patterns.
Allison M. Chartrand, I. Howat, I. Joughin, Benjamin E. Smith   +3 more
semanticscholar   +1 more source