Results 21 to 30 of about 70,309 (180)

Glacial Earthquakes and Precursory Seismicity Associated With Thwaites Glacier Calving [PDF]

Geophysical Research Letters, 2020
We observe two (~MS 3) long‐period (10–30 s) seismic events that originate from the terminus of Thwaites Glacier, Antarctica. Serendipitous acquisition of satellite images confirm that the seismic events were glacial earthquakes generated during the ...
J. Paul Winberry, Audrey D. Huerta, Sridhar Anandakrishnan, Richard C. Aster, Andrew A. Nyblade, Douglas A. Wiens   +5 more
doaj   +3 more sources

Analysis of continuous calving front retreat and the associated influencing factors of the Thwaites Glacier using high-resolution remote sensing data from 2015 to 2023

International Journal of Digital Earth
The Thwaites Glacier (TG), accounting for four percent of present-day sea-level rise, has been confirmed with the irreversible retreat and thinning. Consequently, understanding the continuous calving front retreat within the TG is pivotal for accurately ...
Dong Liang, Yiming Liu
exaly   +3 more sources

Large-Scale Atmospheric Drivers of Snowfall over Thwaites Glacier, Antarctica [PDF]

, 2019
High snowfall events on Thwaites Glacier (West Antarctica) are a key influencer of its ice mass change. In this study, we diagnose the mechanisms for orographic precipitation on Thwaites Glacier by analyzing the atmospheric conditions that lead to high ...
Maclennan, Michelle L.
core   +8 more sources

Derivation of bedrock topography measurement requirements for the reduction of uncertainty in ice-sheet model projections of Thwaites Glacier [PDF]

The Cryosphere, 2022
Determining the future evolution of the Antarctic Ice Sheet is critical for understanding and narrowing the large existing uncertainties in century-scale global mean sea-level-rise (SLR) projections.
B. A. Castleman, B. A. Castleman, N.-J. Schlegel, L. Caron, E. Larour, A. Khazendar   +5 more
doaj   +1 more source

Data-driven bed rheology enhances retreat on Thwaites Glacier

Journal of Glaciology
Field data suggest that Thwaites Glacier’s bed is composed of alternating areas of hard and soft material with correlated topographic variations. Prior modeling shows that forced response differs strongly for simulations on endmember beds, suggesting ...
Emily Schwans, Byron Parizek, Richard B. Alley, Sridhar Anandakrishnan, Shujie Wang   +4 more
doaj   +2 more sources

Two decades of dynamic change and progressive destabilization on the Thwaites Eastern Ice Shelf [PDF]

The Cryosphere, 2021
The Thwaites Eastern Ice Shelf (TEIS) buttresses the eastern grounded portion of Thwaites Glacier through contact with a pinning point at its seaward limit. Loss of this ice shelf will promote further acceleration of Thwaites Glacier.
K. E. Alley, C. T. Wild, A. Luckman, T. A. Scambos, M. Truffer, E. C. Pettit, A. Muto, B. Wallin, M. Klinger, T. Sutterley, S. F. Child, C. Hulen, J. T. M. Lenaerts, M. Maclennan, E. Keenan, D. Dunmire   +15 more
doaj   +1 more source

Brief communication: Heterogenous thinning and subglacial lake activity on Thwaites Glacier, West Antarctica [PDF]

The Cryosphere, 2020
A system of subglacial lakes drained on Thwaites Glacier from 2012–2014. To improve coverage for subsequent drainage events, we extended the elevation and ice-velocity time series on Thwaites Glacier through austral winter 2019.
A. O. Hoffman, K. Christianson, D. Shapero, B. E. Smith, I. Joughin   +4 more
doaj   +1 more source

Persistent, extensive channelized drainage modeled beneath Thwaites Glacier, West Antarctica [PDF]

The Cryosphere, 2022
Subglacial hydrology is a leading control on basal friction and the dynamics of glaciers and ice sheets. At low discharge, subglacial water flows through high-pressure, sheet-like systems that lead to low effective pressures.
A. O. Hager, A. O. Hager, M. J. Hoffman, S. F. Price, D. M. Schroeder, D. M. Schroeder   +5 more
doaj   +1 more source

Limited Impact of Thwaites Ice Shelf on Future Ice Loss From Antarctica

Geophysical Research Letters, 2023
Thwaites Ice Shelf (TWIS), the floating extension of Thwaites Glacier, West Antarctica, is changing rapidly and may completely disintegrate in the near future.
G. H. Gudmundsson, J. M. Barnes, D. N. Goldberg, M. Morlighem   +3 more
doaj   +1 more source

New ¹⁰Be exposure ages improve Holocene ice sheet thinning history near the grounding line of Pope Glacier, Antarctica [PDF]

The Cryosphere, 2022
Evidence for the timing and pace of past grounding line retreat of the Thwaites Glacier system in the Amundsen Sea embayment (ASE) of Antarctica provides constraints for models that are used to predict the future trajectory of the West Antarctic Ice ...
J. R. Adams, J. R. Adams, J. S. Johnson, S. J. Roberts, P. J. Mason, K. A. Nichols, R. A. Venturelli, K. Wilcken, G. Balco, B. Goehring, B. Hall, J. Woodward, D. H. Rood   +12 more
doaj   +1 more source