Outputs (133)

An ensemble of Antarctic deglacial simulations constrained by geological observations (2022)
Journal Article
Pittard, M., Whitehouse, P., Bentley, M., & Small, D. (2022). An ensemble of Antarctic deglacial simulations constrained by geological observations. Quaternary Science Reviews, 298, Article 107800. https://doi.org/10.1016/j.quascirev.2022.107800

The Antarctic ice sheet has the potential to make a significant contribution to future sea-level rise. Understanding this potential and making projections of future ice sheet mass change requires use of numerical models. Confidence in model projectio... Read More about An ensemble of Antarctic deglacial simulations constrained by geological observations.

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.

The Last Glacial Maximum and Deglacial History of the Seno Skyring Ice Lobe (52°S), Southern Patagonia (2022)
Journal Article
Lira, M., García, J., Bentley, M. J., Jamieson, S. S., Darvill, C. M., Hein, A. S., …Binnie, S. A. (2022). The Last Glacial Maximum and Deglacial History of the Seno Skyring Ice Lobe (52°S), Southern Patagonia. Frontiers in Earth Science, 10, https://doi.org/10.3389/feart.2022.892316

There are still many uncertainties about the climatic forcing that drove the glacier fluctuations of the Patagonian Ice Sheet (PIS, 38–55°S) during the last glacial period. A key source of uncertainty is the asynchrony of ice lobe fluctuations betwee... Read More about The Last Glacial Maximum and Deglacial History of the Seno Skyring Ice Lobe (52°S), Southern Patagonia.

Summer sea-ice variability on the Antarctic margin during the last glacial period reconstructed from snow petrel (Pagodroma nivea) stomach-oil deposits (2022)
Journal Article
McClymont, E. L., Bentley, M. J., Hodgson, D. A., Spencer-Jones, C. L., Wardley, T., West, M. D., …Phillips, R. A. (2022). Summer sea-ice variability on the Antarctic margin during the last glacial period reconstructed from snow petrel (Pagodroma nivea) stomach-oil deposits. Climate of the Past, 18(2), 381-403. https://doi.org/10.5194/cp-18-381-2022

Antarctic sea ice is a critical component of the climate system affecting a range of physical and biogeochemical feedbacks and supporting unique ecosystems. During the last glacial stage, Antarctic sea ice was more extensive than today, but uncertain... Read More about Summer sea-ice variability on the Antarctic margin during the last glacial period reconstructed from snow petrel (Pagodroma nivea) stomach-oil deposits.

GPS-observed elastic deformation due to surface mass balance variability in the Southern Antarctic Peninsula (2022)
Journal Article
Koulali, A., Whitehouse, P., Clarke, P., van den Broeke, M., Nield, G., King, M., …Wilson, T. (2022). GPS-observed elastic deformation due to surface mass balance variability in the Southern Antarctic Peninsula. Geophysical Research Letters, 49(4), Article e2021GL097109. https://doi.org/10.1029/2021gl097109

In Antarctica, Global Positioning System (GPS) vertical time series exhibit non-linear signals over a wide range of temporal scales. To explain these non-linearities, a number of hypotheses have been proposed, among them the short-term rapid solid Ea... Read More about GPS-observed elastic deformation due to surface mass balance variability in the Southern Antarctic Peninsula.

Past Antarctic ice sheet dynamics (PAIS) and implications for future sea-level change. (2021)
Book Chapter
Colleoni, F., De Santis, L., Naish, T., DeConto, R., Escutia, C., Stocchi, P., …Wilson, D. (2021). Past Antarctic ice sheet dynamics (PAIS) and implications for future sea-level change. In F. Florindo, M. Siegert, L. De Santis, & L. Naish (Eds.), Antarctic Climate Evolution (689-766). (2nd Ed.). Elsevier

Evidence for a “Little Ice Age” glacial advance within the Antarctic Peninsula – Examples from glacially-overrun raised beaches (2021)
Journal Article
Simms, A. R., Bentley, M. J., Simkins, L. M., Zurbuchen, J., Reynolds, L. C., DeWitt, R., & Thomas, E. R. (2021). Evidence for a “Little Ice Age” glacial advance within the Antarctic Peninsula – Examples from glacially-overrun raised beaches. Quaternary Science Reviews, 271, https://doi.org/10.1016/j.quascirev.2021.107195

Recognition of how dynamic the Antarctic ice sheets and glaciers were during the late Holocene has grown in recent years. Proxy data suggests the presence of Neoglacial advances but few moraines or glacial features from this time have been dated comp... Read More about Evidence for a “Little Ice Age” glacial advance within the Antarctic Peninsula – Examples from glacially-overrun raised beaches.

Ice-free valleys in the Neptune Range of the Pensacola Mountains, Antarctica: glacial geomorphology, geochronology and potential as palaeoenvironmental archives (2021)
Journal Article
Small, D., Bentley, M. J., Evans, D. J., Hein, A. S., & Freeman, S. P. (2021). Ice-free valleys in the Neptune Range of the Pensacola Mountains, Antarctica: glacial geomorphology, geochronology and potential as palaeoenvironmental archives. Antarctic Science, 33(4), 428-455. https://doi.org/10.1017/s0954102021000237

We describe the glacial geomorphology and initial geochronology of two ice-free valley systems within the Neptune Range of the Pensacola Mountains, Antarctica. These valleys are characterized by landforms associated with formerly more expanded ice sh... Read More about Ice-free valleys in the Neptune Range of the Pensacola Mountains, Antarctica: glacial geomorphology, geochronology and potential as palaeoenvironmental archives.

Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica (2020)
Journal Article
Napoleoni, F., Jamieson, S., Ross, N., Bentley, M., Rivera, A., Smith, A., …Vaughan, D. (2020). Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica. The Cryosphere, 14, 4507-4524. https://doi.org/10.5194/tc-14-4507-2020

Subglacial water plays an important role in ice sheet dynamics and stability. Subglacial lakes are often located at the onset of ice streams and have been hypothesised to enhance ice flow downstream by lubricating the ice– bed interface. The most rec... Read More about Subglacial lakes and hydrology across the Ellsworth Subglacial Highlands, West Antarctica.

Long-term increase in Antarctic Ice Sheet vulnerability driven by bed topography evolution (2020)
Journal Article
Paxman, G., Gasson, E., Jamieson, S., Bentley, M., & Ferraccioli, F. (2020). Long-term increase in Antarctic Ice Sheet vulnerability driven by bed topography evolution. Geophysical Research Letters, 47(20), Article e2020GL090003. https://doi.org/10.1029/2020gl090003

Ice sheet behavior is strongly influenced by the bed topography. However, the effect of the progressive temporal evolution of Antarctica's subglacial landscape on the sensitivity of the Antarctic Ice Sheet (AIS) to climatic and oceanic change has yet... Read More about Long-term increase in Antarctic Ice Sheet vulnerability driven by bed topography evolution.