Professor Colm O'Cofaigh's Outputs (8)

Oscillating retreat of the last British-Irish Ice Sheet on the continental shelf offshore Galway Bay, western Ireland (2019)
Journal Article
Callard, S. L., Ó Cofaigh, C., Benetti, S., Chiverrell, R. C., Van Landeghem, K. J., Saher, M. H., Livingstone, S. J., Clark, C. D., Small, D., Fabel, D., & Moreton, S. G. (2020). Oscillating retreat of the last British-Irish Ice Sheet on the continental shelf offshore Galway Bay, western Ireland. Marine Geology, 420, Article 106087. https://doi.org/10.1016/j.margeo.2019.106087

During the Last Glacial Maximum, the British-Irish Ice Sheet extended across the continental shelf offshore of Galway Bay, western Ireland, and reached a maximum westward extent on the Porcupine Bank. New marine geophysical data, sediment cores and r... Read More about Oscillating retreat of the last British-Irish Ice Sheet on the continental shelf offshore Galway Bay, western Ireland.

Pattern, style and timing of British–Irish Ice Sheet retreat: Shetland and northern North Sea sector (2019)
Journal Article
Bradwell, T., Small, D., Fabel, D., Clark, C. D., Chiverrell, R. C., Saher, M. H., Dove, D., Callard, S. L., Burke, M. J., Moreton, S. G., Medialdea, A., Bateman, M. D., Roberts, D. H., Golledge, N. R., Finlayson, A., Morgan, S., & Ó Cofaigh, C. (2021). Pattern, style and timing of British–Irish Ice Sheet retreat: Shetland and northern North Sea sector. Journal of Quaternary Science, 36(5), 681-722. https://doi.org/10.1002/jqs.3163

The offshore sector around Shetland remains one of the least well‐studied parts of the former British–Irish Ice Sheet with several long‐standing scientific issues unresolved. These key issues include (i) the dominance of a locally sourced ‘Shetland i... Read More about Pattern, style and timing of British–Irish Ice Sheet retreat: Shetland and northern North Sea sector.

Dynamic ice stream retreat in the central sector of the last British-Irish Ice Sheet (2019)
Journal Article
Davies, B., Livingstone, S., Roberts, D., Evans, D., Gheorghiu, D., & Ó Cofaigh, C. (2019). Dynamic ice stream retreat in the central sector of the last British-Irish Ice Sheet. Quaternary Science Reviews, 225, Article 105989. https://doi.org/10.1016/j.quascirev.2019.105989

During the Last Glacial Maximum (LGM), ice streams of the last British-Irish Ice Sheet (BIIS) controlled ice discharge from various dispersal centres. Deglaciation was characterised by shifts in ice-divide location and changes in internal ice-sheet d... Read More about Dynamic ice stream retreat in the central sector of the last British-Irish Ice Sheet.

Controls on the formation of turbidity current channels associated with marine-terminating glaciers and ice sheets (2019)
Journal Article
Pope, E. L., Normandeau, A., Ó Cofaigh, C., Stokes, C. R., & Talling, P. J. (2019). Controls on the formation of turbidity current channels associated with marine-terminating glaciers and ice sheets. Marine Geology, 415, Article 105951. https://doi.org/10.1016/j.margeo.2019.05.010

Submarine channels, and the sediment density flows which form them, act as conduits for the transport of sediment, macro-nutrients, fresher water and organic matter from the coast to the deep sea. These systems are therefore significant pathways for... Read More about Controls on the formation of turbidity current channels associated with marine-terminating glaciers and ice sheets.

Ice-stream demise dynamically conditioned by trough shape and bed strength (2019)
Journal Article
Bradwell, T., Small, D., Fabel, D., Smedley, R. K., Clark, C. C., Saher, M. H., Callard, S. L., Chiverrell, R. C., Dove, D., Moreton, S. G., Roberts, D. H., Duller, G. A., & Ó Cofaigh, C. (2019). Ice-stream demise dynamically conditioned by trough shape and bed strength. Science Advances, 5(4), Article eaau1380. https://doi.org/10.1126/sciadv.aau1380

Ice sheet mass loss is currently dominated by fast-flowing glaciers (ice streams) terminating in the ocean as ice shelves and resting on beds below sea level. The factors controlling ice-stream flow and retreat over longer time scales (>100 years), e... Read More about Ice-stream demise dynamically conditioned by trough shape and bed strength.

Advance and retreat of the marine-terminating Irish Sea Ice Stream into the Celtic Sea during the last glacial: Timing and maximum extent (2019)
Journal Article
Scourse, J., Saher, M., Van Landeghem, K. J., Lockhart, E., Purcell, C., Callard, L., Roseby, Z., Allinson, B., Pieńkowski, A. J., Ó Cofaigh, C., Praeg, D., Ward, S., Chiverrell, R., Moreton, S., Fabel, D., & Clark, C. D. (2019). Advance and retreat of the marine-terminating Irish Sea Ice Stream into the Celtic Sea during the last glacial: Timing and maximum extent. Marine Geology, 412, 53-68. https://doi.org/10.1016/j.margeo.2019.03.003

The dynamics of the British-Irish Ice Sheet (BIIS) during the Last Glacial were conditioned by marine-based ice streams, the largest of which by far was the Irish Sea Ice Stream (ISIS) which drained southwest across the Celtic shelf. The maximum exte... Read More about Advance and retreat of the marine-terminating Irish Sea Ice Stream into the Celtic Sea during the last glacial: Timing and maximum extent.

Early deglaciation of the British-Irish Ice Sheet on the Atlantic shelf northwest of Ireland driven by glacioisostatic depression and high relative sea level (2019)
Journal Article
Ó Cofaigh, C., Weilbach, K., Lloyd, J., Benetti, S., Callard, S., Purcell, R., Chiverrell, R., Dunlop, P., Saher, M., Livingstone, S., Van Landeghem, K., Moreton, S., Clark, C., & Fabel, D. (2019). Early deglaciation of the British-Irish Ice Sheet on the Atlantic shelf northwest of Ireland driven by glacioisostatic depression and high relative sea level. Quaternary Science Reviews, 208, 76-96. https://doi.org/10.1016/j.quascirev.2018.12.022

Understanding the triggers and pace of marine-based ice sheet decay is critical for constraining the future mass loss and dynamic behaviour of marine-based sectors of the large polar ice sheets in Greenland and Antarctica. Numerical models which seek... Read More about Early deglaciation of the British-Irish Ice Sheet on the Atlantic shelf northwest of Ireland driven by glacioisostatic depression and high relative sea level.

The mixed‐bed glacial landform imprint of the North Sea Lobe in the western North Sea (2019)
Journal Article
Roberts, D. H., Grimoldi, E., Callard, L., Evans, D. J., Clark, C. D., Stewart, H. A., Dove, D., Saher, M., Ó Cofaigh, C., Chiverrell, R. C., Bateman, M. D., Moreton, S. G., Bradwell, T., Fabel, D., & Medialdea, A. (2019). The mixed‐bed glacial landform imprint of the North Sea Lobe in the western North Sea. Earth Surface Processes and Landforms, 44(6), 1233-1258. https://doi.org/10.1002/esp.4569

During the last glacial cycle an intriguing feature of the British‐Irish Ice Sheet was the North Sea Lobe (NSL); fed from the Firth of Forth and which flowed south and parallel to the English east coast. The controls on the formation and behaviour of... Read More about The mixed‐bed glacial landform imprint of the North Sea Lobe in the western North Sea.