Skip to main content

Research Repository

Advanced Search

Outputs (20)

Extensive palaeo-surfaces beneath the Evans–Rutford region of the West Antarctic Ice Sheet control modern and past ice flow (2024)
Journal Article
Carter, C. M., Bentley, M. J., Jamieson, S. S. R., Paxman, G. J. G., Jordan, T. A., Bodart, J. A., …Napoleoni, F. (2024). Extensive palaeo-surfaces beneath the Evans–Rutford region of the West Antarctic Ice Sheet control modern and past ice flow. The Cryosphere, 18(5), 2277-2296. https://doi.org/10.5194/tc-18-2277-2024

The subglacial landscape of Antarctica records and influences the behaviour of its overlying ice sheet. However, in many places, the evolution of the landscape and its control on ice sheet behaviour have not been investigated in detail. Using recentl... Read More about Extensive palaeo-surfaces beneath the Evans–Rutford region of the West Antarctic Ice Sheet control modern and past ice flow.

Geologic Provinces Beneath the Greenland Ice Sheet Constrained by Geophysical Data Synthesis (2024)
Journal Article
MacGregor, J. A., Colgan, W. T., Paxman, G. J. G., Tinto, K. J., Csathó, B., Darbyshire, F. A., …Sergienko, O. V. (2024). Geologic Provinces Beneath the Greenland Ice Sheet Constrained by Geophysical Data Synthesis. Geophysical Research Letters, 51(8), Article e2023GL107357. https://doi.org/10.1029/2023gl107357

Present understanding of Greenland's subglacial geology is derived mostly from interpolation of geologic mapping of its ice‐free margins and unconstrained by geophysical data. Here we refine the extent of its geologic provinces by synthesizing geophy... Read More about Geologic Provinces Beneath the Greenland Ice Sheet Constrained by Geophysical Data Synthesis.

Subglacial valleys preserved in the highlands of south and east Greenland record restricted ice extent during past warmer climates (2024)
Journal Article
Paxman, G. J. G., Jamieson, S. S. R., Dolan, A. M., & Bentley, M. J. (2024). Subglacial valleys preserved in the highlands of south and east Greenland record restricted ice extent during past warmer climates. The Cryosphere, 18(3), 1467-1493. https://doi.org/10.5194/tc-18-1467-2024

The Greenland Ice Sheet is a key contributor to contemporary global sea level rise, but its long-term history and response to episodes of warming in Earth's geological past remain uncertain. The terrain covered by the ice sheet comprises ∼ 79 % of Gr... Read More about Subglacial valleys preserved in the highlands of south and east Greenland record restricted ice extent during past warmer climates.

An ancient river landscape preserved beneath the East Antarctic Ice Sheet (2023)
Journal Article
Jamieson, S. S. R., Ross, N., Paxman, G. J. G., Clubb, F. J., Young, D. A., Yan, S., …Siegert, M. J. (2023). An ancient river landscape preserved beneath the East Antarctic Ice Sheet. Nature Communications, 14(1), Article 6507. https://doi.org/10.1038/s41467-023-42152-2

The East Antarctic Ice Sheet (EAIS) has its origins ca. 34 million years ago. Since then, the impact of climate change and past fluctuations in the EAIS margin has been reflected in periods of extensive vs. restricted ice cover and the modification o... Read More about An ancient river landscape preserved beneath the East Antarctic Ice Sheet.

Patterns of valley incision beneath the Greenland Ice Sheet revealed using automated mapping and classification (2023)
Journal Article
Paxman, G. (2023). Patterns of valley incision beneath the Greenland Ice Sheet revealed using automated mapping and classification. Geomorphology, 436(September), Article 108778. https://doi.org/10.1016/j.geomorph.2023.108778

The Greenland Ice Sheet covers an area of 1.7 million km2, equivalent to ∼79 % of the surface of Kalaallit Nunaat (Greenland) and ∼1.2 % of the Earth's land surface. The macro-scale geomorphology beneath the ice can provide a valuable record of past... Read More about Patterns of valley incision beneath the Greenland Ice Sheet revealed using automated mapping and classification.

Inference of the timescale-dependent apparent viscosity structure in the upper mantle beneath Greenland (2023)
Journal Article
Paxman, G., Lau, H., Austermann, J., Holtzman, B., & Havlin, C. (2023). Inference of the timescale-dependent apparent viscosity structure in the upper mantle beneath Greenland. AGU advances, 4(2), 1-22. https://doi.org/10.1029/2022av000751

Contemporary crustal uplift and relative sea level change in Greenland is caused by the response of the solid Earth to ongoing and historical ice mass change. Glacial isostatic adjustment (GIA) models, which seek to match patterns of land surface dis... Read More about Inference of the timescale-dependent apparent viscosity structure in the upper mantle beneath Greenland.

Response of the East Antarctic Sheet to Past and Future Climate Change (2022)
Journal Article
Stokes, C. R., Abram, N. J., Bentley, M. J., Edwards, T. L., England, M. H., Foppert, A., …Whitehouse, P. (2022). Response of the East Antarctic Sheet to Past and Future Climate Change. Nature, 608, 275-286. https://doi.org/10.1038/s41586-022-04946-0

The East Antarctic Ice Sheet contains the vast majority of Earth’s glacier ice (about 52 metres sea-level equivalent), but is often viewed as less vulnerable to global warming than the West Antarctic or Greenland ice sheets. However, some regions of... Read More about Response of the East Antarctic Sheet to Past and Future Climate Change.

Total isostatic response to the complete unloading of the Greenland and Antarctic Ice Sheets (2022)
Journal Article
Paxman, G. J., Austermann, J., & Hollyday, A. (2022). Total isostatic response to the complete unloading of the Greenland and Antarctic Ice Sheets. Scientific Reports, 12(1), Article 11399. https://doi.org/10.1038/s41598-022-15440-y

The land surface beneath the Greenland and Antarctic Ice Sheets is isostatically suppressed by the mass of the overlying ice. Accurate computation of the land elevation in the absence of ice is important when considering, for example, regional geodyn... Read More about Total isostatic response to the complete unloading of the Greenland and Antarctic Ice Sheets.