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All Outputs (78)

Resolving the paradox of conflicting glacial chronologies: Reconstructing the pattern of deglaciation of the Magellan cordilleran ice dome (53–54°S) during the last glacial – interglacial transition (2024)
Journal Article
McCulloch, R. D., Bentley, M. J., Fabel, D., Fernández-Navarro, H., García, J.-L., Hein, A. S., Huynh, C., Jamieson, S. S., Lira, M.-P., Lüthgens, C., Nield, G. A., San Román, M., & Tisdall, E. W. (online). Resolving the paradox of conflicting glacial chronologies: Reconstructing the pattern of deglaciation of the Magellan cordilleran ice dome (53–54°S) during the last glacial – interglacial transition. Quaternary Science Reviews, Article 108866. https://doi.org/10.1016/j.quascirev.2024.108866

Raised shorelines and associated lacustrine sediments in the central Estrecho de Magallanes (Strait of Magellan) have been interpreted as products of cordilleran glaciers impounding a large proglacial lake and preventing drainage to the South Pacific... Read More about Resolving the paradox of conflicting glacial chronologies: Reconstructing the pattern of deglaciation of the Magellan cordilleran ice dome (53–54°S) during the last glacial – interglacial transition.

The deglacial history of 79N glacier and the Northeast Greenland Ice Stream (2024)
Journal Article
Roberts, D. H., Lane, T. P., Jones, R. S., Bentley, M. J., Darvill, C. M., Rodes, A., Smith, J. A., Jamieson, S. S., Rea, B. R., Fabel, D., Gheorghiu, D., Davidson, A., Cofaigh, C. Ó., Lloyd, J. M., Callard, S. L., & Humbert, A. (2024). The deglacial history of 79N glacier and the Northeast Greenland Ice Stream. Quaternary Science Reviews, 336, Article 108770. https://doi.org/10.1016/j.quascirev.2024.108770

The Northeast Greenland Ice Stream (NEGIS) is the main artery for ice discharge from the northeast sector of the Greenland Ice Sheet (GrIS) to the North Atlantic. Understanding the past, present and future stability of the NEGIS with respect to atmos... Read More about The deglacial history of 79N glacier and the Northeast Greenland Ice Stream.

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.

Alpine topography of the Gamburtsev Subglacial Mountains, Antarctica, mapped from ice sheet surface morphology (2024)
Journal Article
Lea, E. J., Jamieson, S. S. R., & Bentley, M. J. (2024). Alpine topography of the Gamburtsev Subglacial Mountains, Antarctica, mapped from ice sheet surface morphology. The Cryosphere, 18(4), 1733-1751. https://doi.org/10.5194/tc-18-1733-2024

Landscapes buried beneath the Antarctic Ice Sheet preserve information about the geologic and geomorphic evolution of the continent both before and during the wide-scale glaciation that began roughly 34×106 years ago. Since the inception of this ice... Read More about Alpine topography of the Gamburtsev Subglacial Mountains, Antarctica, mapped from ice sheet surface morphology.

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.

Past glaciation of temperate‐continental mountains: A model for a debris‐charged plateau icefield/cirque glacier landsystem in the Southern Carpathians, Romania (2023)
Journal Article
Balaban, C., Roberts, D., Evans, D., & Jamieson, S. (2024). Past glaciation of temperate‐continental mountains: A model for a debris‐charged plateau icefield/cirque glacier landsystem in the Southern Carpathians, Romania. Earth Surface Processes and Landforms, 49(2), 601-621. https://doi.org/10.1002/esp.5723

Reconstructing the extent, style, timing and drivers of past mountain glaciation is crucial in both understanding past atmospheric circulation and predicting future climate change. Unlike in high‐elevation mountains situated in maritime and continent... Read More about Past glaciation of temperate‐continental mountains: A model for a debris‐charged plateau icefield/cirque glacier landsystem in the Southern Carpathians, Romania.

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.

Extensive and anomalous grounding line retreat at Vanderford Glacier, Vincennes Bay, Wilkes Land, East Antarctica (2023)
Journal Article
Picton, H. J., Stokes, C. R., Jamieson, S. S. R., Floricioiu, D., & Krieger, L. (2023). Extensive and anomalous grounding line retreat at Vanderford Glacier, Vincennes Bay, Wilkes Land, East Antarctica. The Cryosphere, 17(8), 3593–3616. https://doi.org/10.5194/tc-2022-217

Wilkes Land, East Antarctica, has been losing mass at an accelerating rate over recent decades in response to enhanced oceanic forcing. Overlying the Aurora Subglacial Basin, it has been referred to as the ‘weak underbelly’ of the East Antarctic Ice... Read More about Extensive and anomalous grounding line retreat at Vanderford Glacier, Vincennes Bay, Wilkes Land, East Antarctica.

Direct measurement of warm Atlantic Intermediate Water close to the grounding line of Nioghalvfjerdsfjorden (79° N) Glacier, northeast Greenland (2023)
Journal Article
Bentley, M. J., Smith, J. A., Jamieson, S. S., Lindeman, M. R., Rea, B. R., Humbert, A., Lane, T. P., Darvill, C. M., Lloyd, J. M., Straneo, F., Helm, V., & Roberts, D. H. (2023). Direct measurement of warm Atlantic Intermediate Water close to the grounding line of Nioghalvfjerdsfjorden (79° N) Glacier, northeast Greenland. The Cryosphere, 17(5), 1821-1837. https://doi.org/10.5194/tc-17-1821-2023

The Northeast Greenland Ice Stream has recently seen significant change to its floating margins and has been identified as vulnerable to future climate warming. Inflow of warm Atlantic Intermediate Water (AIW) from the continental shelf has been obse... Read More about Direct measurement of warm Atlantic Intermediate Water close to the grounding line of Nioghalvfjerdsfjorden (79° N) Glacier, northeast Greenland.

Increased warm water intrusions could cause mass loss in East Antarctica during the next 200 years (2023)
Journal Article
Jordan, J. R., Miles, B., Gudmundsson, G., Jamieson, S., Jenkins, A., & Stokes, C. (2023). Increased warm water intrusions could cause mass loss in East Antarctica during the next 200 years. Nature Communications, 14(1), Article 1825. https://doi.org/10.1038/s41467-023-37553-2

The East Antarctic Ice Sheet (EAIS) is currently surrounded by relatively cool water, but climatic shifts have the potential to increase basal melting via intrusions of warm modified Circumpolar Deep Water (mCDW) onto the continental shelf. Here we u... Read More about Increased warm water intrusions could cause mass loss in East Antarctica during the next 200 years.

Holocene history of the 79° N ice shelf reconstructed from epishelf lake and uplifted glaciomarine sediments (2023)
Journal Article
Smith, J. A., Callard, L., Bentley, M. J., Jamieson, S. S., Sánchez-Montes, M. L., Lane, T. P., Lloyd, J. M., McClymont, E. L., Darvill, C. M., Rea, B. R., O'Cofaigh, C., Gulliver, P., Ehrmann, W., Jones, R. S., & Roberts, D. H. (2023). Holocene history of the 79° N ice shelf reconstructed from epishelf lake and uplifted glaciomarine sediments. The Cryosphere, 17(3), https://doi.org/10.5194/tc-17-1247-2023

Nioghalvfjerdsbrae, or 79◦ N Glacier, is the largest marine-terminating glacier draining the Northeast Greenland Ice Stream (NEGIS). In recent years, its ∼ 70 km long fringing ice shelf (hereafter referred to as the 79◦ N ice shelf) has thinned, and... Read More about Holocene history of the 79° N ice shelf reconstructed from epishelf lake and uplifted glaciomarine sediments.

The geomorphological record of an ice stream to ice shelf transition in Northeast Greenland (2023)
Journal Article
Lane, T., Darvill, C., Rea, B., Bentley, M., Smith, J., Jamieson, S., Ó Cofaigh, C., & Roberts, D. (2023). The geomorphological record of an ice stream to ice shelf transition in Northeast Greenland. Earth Surface Processes and Landforms, 48(7), 1321-1341. https://doi.org/10.1002/esp.5552

Understanding ice stream dynamics over decadal to millennial timescales is crucial for improving numerical model projections of ice sheet behaviour and future ice loss. In marine-terminating settings, ice shelves play a critical role in controlling i... Read More about The geomorphological record of an ice stream to ice shelf transition in Northeast Greenland.

Slowdown of Shirase Glacier, East Antarctica, caused by strengthening alongshore winds (2022)
Journal Article
Miles, B. W., Stokes, C. R., Jenkins, A., Jordan, J. R., Jamieson, S. S., & Gudmundsson, G. H. (2022). Slowdown of Shirase Glacier, East Antarctica, caused by strengthening alongshore winds. The Cryosphere, 17, 445-456. https://doi.org/10.5194/tc-17-445-2023

Around large parts of West Antarctica and in Wilkes Land, East Antarctica, increased wind-forced intrusions of modified Circumpolar Deep Water (mCDW) onto the continental shelf have been associated with mass loss over the last few decades. Despite co... Read More about Slowdown of Shirase Glacier, East Antarctica, caused by strengthening alongshore winds.

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., Jamieson, S. S., Jones, R. S., King, M. A., Lenaerts, J. T., Medley, B., Miles, B. W., Paxman, G. J., Ritz, C., van de Flierdt, T., & 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.-P., García, J.-L., Bentley, M. J., Jamieson, S. S., Darvill, C. M., Hein, A. S., Fernández, H., Rodés, Á., Fabel, D., Smedley, R. K., & 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.

High spatial and temporal variability in Antarctic ice discharge linked to ice shelf buttressing and bed geometry (2022)
Journal Article
Miles, B., Stokes, C., Jamieson, S., Jordan, J., Gudmundsson, G., & Jenkins, A. (2022). High spatial and temporal variability in Antarctic ice discharge linked to ice shelf buttressing and bed geometry. Scientific Reports, 12, Article 10968. https://doi.org/10.1038/s41598-022-13517-2

Antarctica’s contribution to global mean sea level rise has been driven by an increase in ice discharge into the oceans. The rate of change and the mechanisms that drive variability in ice discharge are therefore important to consider in the context... Read More about High spatial and temporal variability in Antarctic ice discharge linked to ice shelf buttressing and bed geometry.

Palaeoglaciation in the low latitude, low elevation tropical Andes, northern Peru (2022)
Journal Article
Lee, E., Ross, N., Henderson, A., Russell, A., Jamieson, S., & Fabel, D. (2022). Palaeoglaciation in the low latitude, low elevation tropical Andes, northern Peru. Frontiers in Earth Science, 10, Article 838826. https://doi.org/10.3389/feart.2022.838826

Characterising glaciological change within the tropical Andes is important because tropical glaciers are sensitive to climate change. Our understanding of glacier dynamics and how tropical glaciers respond to global climate perturbations is poorly co... Read More about Palaeoglaciation in the low latitude, low elevation tropical Andes, northern Peru.

Large interannual variability in supraglacial lakes around East Antarctica (2022)
Journal Article
Arthur, J. F., Stokes, C. R., Jamieson, S. S., Rachel Carr, J., Leeson, A. A., & Verjans, V. (2022). Large interannual variability in supraglacial lakes around East Antarctica. Nature Communications, 13(1), https://doi.org/10.1038/s41467-022-29385-3

Antarctic supraglacial lakes (SGLs) have been linked to ice shelf collapse and the subsequent acceleration of inland ice flow, but observations of SGLs remain relatively scarce and their interannual variability is largely unknown. This makes it diffi... Read More about Large interannual variability in supraglacial lakes around East Antarctica.