Showing 1 - 11 results of 11 for search '"West Antarctica"', query time: 0.07s Refine Results
  1. 1

    Evolution of sub-ice-shelf channels reveals changes in ocean-driven melt in West Antarctica by Karen E. Alley, Richard B. Alley, Alex D. Crawford, Naomi Ochwat, Christian T. Wild, Juliana Marson, Tasha Snow, Atsuhiro Muto, Erin C. Pettit, Sarah F. Child, Martin Truffer, Gabriela Collao-Barrios, Ted A. Scambos

    Published 2024-01-01
    “…In this study, we track the evolution of 12 large basal channels beneath ice shelves of the Amundsen and Bellingshausen seas region in West Antarctica using the Landsat record since its start in the 1970s through 2020. …”
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    Multi-decadal evolution of Crary Ice Rise region, West Antarctica, amid modern ice-stream deceleration by Hannah Verboncoeur, Matthew Ross Siegfried, Nicholas Holschuh, Jeremy Paul Winberry, Duncan Byrne, Wilson Sauthoff, Tyler Clark Sutterley, Brooke Medley

    Published 2025-01-01
    “…The ongoing deceleration of Whillans Ice Stream, West Antarctica, provides an opportunity to investigate the co-evolution of ice-shelf pinning points and ice-stream flux variability. …”
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  4. 4

    What can radar-based measures of subglacial hydrology tell us about basal shear stress? A case study at Thwaites Glacier, West Antarctica by Rohaiz Haris, Winnie Chu, Alexander Robel

    Published 2024-01-01
    “…At Thwaites Glacier, West Antarctica, we sample basal shear stress inversions across a wide range of ice sheet models to see how the basal shear stress distribution changes in regions of varying relative reflectivity and specularity content. …”
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  5. 5

    The geometry of sea-level change across a mid-Pliocene glacial cycle by M. E. King, J. R. Creveling, J. X. Mitrovica

    Published 2025-01-01
    “…We explore this issue by modeling processes of glacial isostatic adjustment for a wide range of possible MPWP ice-sheet melt zones, including North America, Greenland, Eurasia, and West Antarctica, as well as the Wilkes Basin, the Aurora Basin, and the embayment of Prydz Bay in East Antarctica. …”
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  6. 6

    A Feasibility Study on Monitoring Crustal Structure Variations by Direct Comparison of Surface Wave Dispersion Curves from Ambient Seismic Noise by K. Muhumuza

    Published 2020-01-01
    “…We cross-correlated four years of vertical component ambient noise data recorded by a seismic array in West Antarctica. To estimate fundamental mode Rayleigh wave Green’s functions, the correlations are computed in 4-hr segments, stacked over 1-year time windows and moving windows of 3 months. …”
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  7. 7

    Extreme precipitation associated with atmospheric rivers over West Antarctic ice shelves: insights from kilometre-scale regional climate modelling by E. Gilbert, D. Pishniak, J. A. Torres, A. Orr, M. Maclennan, M. Maclennan, N. Wever, K. Verro, K. Verro

    Published 2025-02-01
    “…<p>We explore how atmospheric rivers (ARs) in a summer and winter case interact with the topography of the Amundsen Sea Embayment, West Antarctica, and deposit significant precipitation amounts. …”
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  8. 8

    Evidence of active subglacial lakes under a slowly moving coastal region of the Antarctic Ice Sheet by J. F. Arthur, C. Shackleton, G. Moholdt, K. Matsuoka, J. van Oostveen

    Published 2025-01-01
    “…Most previously identified lakes have been found upstream (<span class="inline-formula"><i>&gt;</i>100</span> km) of fast-flowing glaciers in West Antarctica, and none have been found in the coastal region of Dronning Maud Land (DML) in East Antarctica. …”
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  9. 9

    Machine learning of Antarctic firn density by combining radiometer and scatterometer remote-sensing data by W. Li, S. B. M. Veldhuijsen, S. Lhermitte, S. Lhermitte

    Published 2025-01-01
    “…However, the temporal patterns show some discrepancies, as the RF regressor tends to overestimate summer densities, except for high-elevation regions in East Antarctica and specific areas in West Antarctica. These errors may be attributed to underestimations of short-term or seasonal variations in the modelled density and the limitations of RF in extrapolating values outside the training data. …”
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  10. 10

    Remote Mapping of Bedrock for Future Cosmogenic Nuclide Exposure Dating Studies in Unvisited Areas of Antarctica by Jonathan R. Adams, Philippa J. Mason, Stephen J. Roberts, Dylan H. Rood, John L. Smellie, Keir A. Nichols, John Woodward, Joanne S. Johnson

    Published 2025-01-01
    “…We applied a combination of spectral mapping and ground truth from spectral measurements of 17 rock samples from Mount Murphy in the Amundsen Sea sector of West Antarctica. Using this approach, we identified four dominant rock types which we used as a basis for felsic–mafic differentiation: felsic granites and gneisses, and mafic basalts and fragmental hydrovolcanic rocks. …”
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  11. 11

    Assessing the suitability of sites near Pine Island Glacier for subglacial bedrock drilling aimed at detecting Holocene retreat–readvance by J. S. Johnson, J. Woodward, I. Nesbitt, K. Winter, S. Campbell, K. A. Nichols, R. A. Venturelli, S. Braddock, B. M. Goehring, B. Hall, D. H. Rood, G. Balco, G. Balco

    Published 2025-01-01
    “…Here we evaluate the suitability for subglacial bedrock drilling of sites in the Hudson Mountains, which are located in the Amundsen Sea sector of West Antarctica. We use an ice sheet model and field data – geological observations, glaciological observations and bedrock samples from nunataks, and ground-penetrating radar from subglacial ridges – to rate each site against four key criteria: (i) presence of ridges extending below the ice sheet, (ii) likelihood of increased exposure of those ridges if the grounding line was inboard of present, (iii) suitability of bedrock for drilling and geochemical analysis, and (iv) accessibility for aircraft and drilling operations. …”
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