Results 61 to 70 of about 70,309 (180)

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

Inland thinning of the Amundsen Sea sector, West Antarctica [PDF]

, 2002
[1] Together with the Pine Island glacier (PIG), the Thwaites (TG) and Smith (SG) glaciers are the principal drainage systems of the Amundsen Sea (AS) sector of Western Antarctica.
Wingham, DJ, Shepherd, A, Mansley, JAD
core  

Seafloor Reveals a Period of Rapid Retreat for Thwaites Glacier

Eos, 2022
New high-resolution seafloor imagery shows a series of delicate ridges produced by the glacier’s front as it bobbed daily with the tides, revealing a recent period of rapid retreat.New high-resolution seafloor imagery shows a series of delicate ridges produced by the glacier’s front as it bobbed daily with the tides, revealing a recent period of rapid ...
openaire   +1 more source

Warm Surface Waters Dominate Melting of the Denman‐Shackleton Ice Shelf System

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract The ocean dynamics controlling the melting of the Denman‐Shackleton ice shelf system are investigated using a high‐resolution regional ocean‐sea ice‐ice shelf model. Our results show that basal meltwater production exhibits strong seasonal variability, driven by the ocean heat supply toward the ice shelf system, and occurs through two distinct
Yuhang Liu, Maxim Nikurashin, Beatriz Peña‐Molino, Paul Spence, Laura Herraiz‐Borreguero   +4 more
wiley   +1 more source

Post‐1990s Warming of Circumpolar Deep Water Off West Antarctica and Its Drivers

Journal of Geophysical Research: Oceans, Volume 131, Issue 7, July 2026.
Abstract Ice loss off East Antarctica has been linked to the warming of Circumpolar Deep Water (CDW) associated with a poleward shift of the southern boundary of the Antarctic Circumpolar Current (ACC). In West Antarctica, where the fastest ice‐shelf melting occurs, it has been proposed that off‐shelf CDW warming could be additionally driven by ...
Brendon Y. Damini, Tiago S. Dotto, Karen J. Heywood, Alberto C. Naveira Garabato, Rob A. Hall, Mauricio M. Mata, Rodrigo Kerr   +6 more
wiley   +1 more source

Emergent Dynamics From a Position‐Based Calving Function and the Limits of a Rate‐Based Calving Function

Journal of Geophysical Research: Earth Surface, Volume 131, Issue 7, July 2026.
Abstract A wide range of functions are currently available for simulating the calving of marine‐terminating glaciers, but there is no consensus on the best approach to represent the calving process in glacier and ice‐sheet models. Current assessments of calving functions are often crudely done by fitting functions to observed changes in terminus ...
Iain Wheel, Douglas I. Benn, Anna J. Crawford   +2 more
wiley   +1 more source

Table1_Sedimentary Signatures of Persistent Subglacial Meltwater Drainage From Thwaites Glacier, Antarctica.DOCX

, 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
J. A. Smith (1888894), R. Totten (12693110), C-D. Hillenbrand (12693104), A. P. Lepp (12693089), J. B. Anderson (12693095), J. S. Wellner (12693101), A. G. C. Graham (12693116), L. Wacker (2921199), R. W. Clark (12693098), R. D. Larter (6168035), F. O. Nitsche (6168071), A. A. Lehrmann (12693107), L. M. Simkins (12693092), K. A. Hogan (12693113)   +13 more
core   +1 more source

Adaptively constraining radar attenuation and temperature across the Thwaites Glacier catchment using bed echoes

Journal of Glaciology, 2016
Englacial temperature is a major control on ice rheology and flow. However, it is difficult to measure at the glacier to ice-sheet scale. As a result, ice-sheet models must make assumptions about englacial temperature and rheology, which affect sea level
DUSTIN M. SCHROEDER, HELENE SEROUSSI, WINNIE CHU, DUNCAN A. YOUNG   +3 more
doaj   +1 more source

Reduced West Antarctic Ice Sheet Size During Prominent Quaternary Interglacials Constrained by Iceberg‐Rafted Debris Provenance in the Amundsen Sea

Geophysical Research Letters, Volume 53, Issue 12, 28 June 2026.
Abstract The stability of the West Antarctic Ice Sheet (WAIS) remains a major uncertainty in sea‐level projections, and geologic records provide important constraints on its past behavior. We present 40Ar/39Ar ages of biotite and hornblende grains from iceberg‐rafted debris (IRD) in two Amundsen Sea sediment cores (PC493 and PS58/254), located south ...
Patric Simões Pereira, Claus‐Dieter Hillenbrand, Sidney R. Hemming, James W. Marschalek, Rob Larter, James A. Smith, Gerhard Kuhn, Tina van de Flierdt   +7 more
wiley   +1 more source

Influence of subglacial drainage system evolution on glacier surface motion: Haut Glacier d'Arolla, Switzerland [PDF]

, 2002
The relationship between the evolution of subglacial drainage system morphology and spatial patterns of glacier surface velocity was investigated using dye tracing experiments and ground surveying throughout the 1995 melt season at Haut Glacier d'Arolla,
Ian Willis, Sharp, M., Wohlleben, T., Peter Nienow, Mair, D., Martin Sharp, Willis, I., Trudy Wohlleben, Douglas Mair, Nienow, P.   +9 more
core   +1 more source