Professor Colm O'Cofaigh's Outputs (119)

Ocean forcing of Ice Sheet retreat in central west Greenland from LGM to the early Holocene (2017)
Journal Article
Jennings, A., Andrews, J., Ó Cofaigh, C., St Onge, G., Sheldon, C., Belt, S., …Hillaire-Marcel, C. (2017). Ocean forcing of Ice Sheet retreat in central west Greenland from LGM to the early Holocene. Earth and Planetary Science Letters, 472, 1-13. https://doi.org/10.1016/j.epsl.2017.05.007

Three radiocarbon dated sediment cores from trough mouth fans on the central west Greenland continental slope were studied to determine the timing and processes of Greenland Ice Sheet (GIS) retreat from the shelf edge during the last deglaciation and... Read More about Ocean forcing of Ice Sheet retreat in central west Greenland from LGM to the early Holocene.

Submarine Landforms and Glacimarine Sedimentary Processes in Lomfjorden, East Spitsbergen (2017)
Journal Article
Streuff, K., Ó Cofaigh, C., Noormets, R., & Lloyd, J. (2017). Submarine Landforms and Glacimarine Sedimentary Processes in Lomfjorden, East Spitsbergen. Marine Geology, 390, 51-71. https://doi.org/10.1016/j.margeo.2017.04.014

Understanding the role of fjords in modulating the long-term interaction between ice sheets and glaciers with the surrounding ocean requires the investigation of glacigenic landform and sediment archives. In Svalbard, there is a wealth of data from f... Read More about Submarine Landforms and Glacimarine Sedimentary Processes in Lomfjorden, East Spitsbergen.

Glacial landsystems, retreat dynamics and controls on Loch Lomond Stadial (Younger Dryas) glaciation in Britain (2017)
Journal Article
Bickerdike, H., Ó Cofaigh, C., Evans, D., & Stokes, C. (2018). Glacial landsystems, retreat dynamics and controls on Loch Lomond Stadial (Younger Dryas) glaciation in Britain. Boreas: An International Journal of Quaternary Research, 47(1), 202-224. https://doi.org/10.1111/bor.12259

Glacial geomorphology relating to the Loch Lomond Stadial (Younger Dryas) in Britain is used to construct five glacial landsystem models. These landsystems lie on a continuum of increasing ice thickness and decreasing topographic control and typify t... Read More about Glacial landsystems, retreat dynamics and controls on Loch Lomond Stadial (Younger Dryas) glaciation in Britain.

Geomorphic and shallow-acoustic investigation of an Antarctic Peninsula fjord system using high-resolution ROV and shipboard geophysical observations: ice dynamics and behaviour since the Last Glacial Maximum (2016)
Journal Article
Garcia, M., Dowdeswell, J., Noormets, R., Hogan, K., Evans, J., Ó Cofaigh, C., & LArter, R. (2016). Geomorphic and shallow-acoustic investigation of an Antarctic Peninsula fjord system using high-resolution ROV and shipboard geophysical observations: ice dynamics and behaviour since the Last Glacial Maximum. Quaternary Science Reviews, 153, 122-138. https://doi.org/10.1016/j.quascirev.2016.10.014

Detailed bathymetric and sub-bottom acoustic observations in Bourgeois Fjord (Marguerite Bay, Antarctic Peninsula) provide evidence on sedimentary processes and glacier dynamics during the last glacial cycle. Submarine landforms observed in the 50 km... Read More about Geomorphic and shallow-acoustic investigation of an Antarctic Peninsula fjord system using high-resolution ROV and shipboard geophysical observations: ice dynamics and behaviour since the Last Glacial Maximum.

Sedimentology and chronology of the advance and retreat of the last British-Irish Ice Sheet on the continental shelf west of Ireland (2016)
Journal Article
Peters, J., Benetti, S., Dunlop, P., Ó Cofaigh, C., Moreton, S., Wheeler, A., & Clark, C. (2016). Sedimentology and chronology of the advance and retreat of the last British-Irish Ice Sheet on the continental shelf west of Ireland. Quaternary Science Reviews, 140, 101-124. https://doi.org/10.1016/j.quascirev.2016.03.012

The last British-Irish Ice Sheet (BIIS) had extensive marine-terminating margins and was drained by multiple large ice streams and is thus a useful analogue for marine-based areas of modern ice sheets. However, despite recent advances from investigat... Read More about Sedimentology and chronology of the advance and retreat of the last British-Irish Ice Sheet on the continental shelf west of Ireland.

Bathymetry data reveal glaciers vulnerable to ice-ocean interaction in Uummannaq and Vaigat glacial fjords, West Greenland (2016)
Journal Article
Rignot, E., Fenty, I., Xu, Y., Cai, C., Velicogna, I., Ó Cofaigh, C., …Duncan, D. (2016). Bathymetry data reveal glaciers vulnerable to ice-ocean interaction in Uummannaq and Vaigat glacial fjords, West Greenland. Geophysical Research Letters, 43(6), 2667-2674. https://doi.org/10.1002/2016gl067832

Marine-terminating glaciers play a critical role in controlling Greenland's ice sheet mass balance. Their frontal margins interact vigorously with the ocean, but our understanding of this interaction is limited, in part, by a lack of bathymetry data.... Read More about Bathymetry data reveal glaciers vulnerable to ice-ocean interaction in Uummannaq and Vaigat glacial fjords, West Greenland.

Subglacial processes on an Antarctic ice stream bed. 1: Sediment transport and bedform genesis inferred from marine geophysical data (2016)
Journal Article
Livingstone, S., Stokes, C., O Cofaigh, C., Hillenbrand, C., Vieli, A., Jamieson, S., …Dowdeswell, J. (2016). Subglacial processes on an Antarctic ice stream bed. 1: Sediment transport and bedform genesis inferred from marine geophysical data. Journal of Glaciology, 62(232), 270-284. https://doi.org/10.1017/jog.2016.18

The spatial pattern and morphometry of bedforms and their relationship to sediment thickness have been analysed in the Marguerite Bay Palaeo-ice stream Trough, western Antarctic Peninsula. Over 17 000 glacial landforms were measured from geophysical... Read More about Subglacial processes on an Antarctic ice stream bed. 1: Sediment transport and bedform genesis inferred from marine geophysical data.

Subglacial processes on an Antarctic ice stream bed. 2: Can modelled ice dynamics explain the morphology of mega-scale glacial lineations? (2016)
Journal Article
Jamieson, S., Stokes, C., Livingstone, S., Vieli, A., Ò Cofaigh, C., Hillenbrand, C., & Spagnolo, M. (2016). Subglacial processes on an Antarctic ice stream bed. 2: Can modelled ice dynamics explain the morphology of mega-scale glacial lineations?. Journal of Glaciology, 62(232), 285-298. https://doi.org/10.1017/jog.2016.19

Mega-scale glacial lineations (MSGLs) are highly elongate subglacial bedforms associated with ice streaming. However, the link between MSGLs and rapid ice flow is largely qualitative, and there have been few attempts to quantitatively link their form... Read More about Subglacial processes on an Antarctic ice stream bed. 2: Can modelled ice dynamics explain the morphology of mega-scale glacial lineations?.

Ice Stream retreat following the LGM and onset of the West Greenland Current in Uummannaq Trough, West Greenland (2016)
Journal Article
Sheldon, C., Jennings, A., Andrews, J., Ó Cofaigh, C., Hogan, K., Dowdeswell, J., & Seidenkrantz, M. (2016). Ice Stream retreat following the LGM and onset of the West Greenland Current in Uummannaq Trough, West Greenland. Quaternary Science Reviews, 147, 27-46. https://doi.org/10.1016/j.quascirev.2016.01.019

The deglacial history and oceanography of Uummannaq Trough, central West Greenland continental shelf, was investigated using foraminiferal, sedimentological, and bathymetric records together with a radiocarbon chronology, providing a timeline for the... Read More about Ice Stream retreat following the LGM and onset of the West Greenland Current in Uummannaq Trough, West Greenland.

The glacial geomorphology of the Loch Lomond Stadial in Britain: a map and geographic information system resource of published evidence (2016)
Journal Article
Bickerdike, H., Evans, D., Ó Cofaigh, C., & Stokes, C. (2016). The glacial geomorphology of the Loch Lomond Stadial in Britain: a map and geographic information system resource of published evidence. Journal of Maps, 12(5), 1178-1186. https://doi.org/10.1080/17445647.2016.1145149

The Loch Lomond Stadial (LLS) was an abrupt period of renewed cooling between 12.9 and 11.7 ka and has long been associated with the regrowth of glaciers in much of upland Britain. Mapping the glacial landforms associated with this period has been un... Read More about The glacial geomorphology of the Loch Lomond Stadial in Britain: a map and geographic information system resource of published evidence.

Deglaciation of a major palaeo-ice stream in Disko Trough, West Greenland (2016)
Journal Article
Hogan, K., Ó Cofaigh, C., Jennings, A., Dowdeswell, J., & Hiemstra, J. (2016). Deglaciation of a major palaeo-ice stream in Disko Trough, West Greenland. Quaternary Science Reviews, 147, 5-26. https://doi.org/10.1016/j.quascirev.2016.01.018

Recent work has confirmed that grounded ice reached the shelf break in central West Greenland during the Last Glacial Maximum (LGM). Here we use a combination of marine sediment-core data, including glacimarine lithofacies and IRD proxy records, and... Read More about Deglaciation of a major palaeo-ice stream in Disko Trough, West Greenland.

Submarine landform assemblages and sedimentary processes related to glacier surging in Kongsfjorden, Svalbard (2015)
Journal Article
Streuff, K., Forwick, M., Szczuciński, W., Andreassen, K., & O'Cofaigh, C. (2015). Submarine landform assemblages and sedimentary processes related to glacier surging in Kongsfjorden, Svalbard. Arktos (Cham. Internet), 1, Article 14. https://doi.org/10.1007/s41063-015-0003-y

High-resolution swath-bathymetry data from inner Kongsfjorden, Svalbard, reveal characteristic landform assemblages formed during and after surges of tidewater glaciers, and provide new insights into the dynamics of surging glaciers. Glacier front os... Read More about Submarine landform assemblages and sedimentary processes related to glacier surging in Kongsfjorden, Svalbard.

Maximum extent and dynamic behaviour of the last British–Irish Ice Sheet west of Ireland (2015)
Journal Article
Peters, J., Benetti, S., Dunlop, P., & Ó Cofaigh, C. (2015). Maximum extent and dynamic behaviour of the last British–Irish Ice Sheet west of Ireland. Quaternary Science Reviews, 128, 48-68. https://doi.org/10.1016/j.quascirev.2015.09.015

A complete reconstruction of the last British–Irish Ice Sheet (BIIS) is hindered by uncertainty surrounding its offshore extent and dynamic behaviour. This study addresses this problem by reconstructing the depositional history of four sediment cores... Read More about Maximum extent and dynamic behaviour of the last British–Irish Ice Sheet west of Ireland.

Late Devensian deglaciation of the Tyne Gap Palaeo-Ice Stream, northern England (2015)
Journal Article
Livingstone, S., Roberts, D., Davies, B., Evans, D., Ó Cofaigh, C., & Gheorghiu, D. (2015). Late Devensian deglaciation of the Tyne Gap Palaeo-Ice Stream, northern England. Journal of Quaternary Science, 30(8), 790-804. https://doi.org/10.1002/jqs.2813

The deglacial history of the central sector of the last British–Irish Ice Sheet is poorly constrained, particularly along major ice-stream flow paths. The Tyne Gap Palaeo-Ice Stream (TGIS) was a major fast-flow conduit of the British–Irish Ice Sheet... Read More about Late Devensian deglaciation of the Tyne Gap Palaeo-Ice Stream, northern England.

A Marine Isotope Stage 4 age for Pleistocene raised beach deposits near Fethard, southern Ireland (2015)
Journal Article
Gallagher, C., Telfer, M., & Ó Cofaigh, C. (2015). A Marine Isotope Stage 4 age for Pleistocene raised beach deposits near Fethard, southern Ireland. Journal of Quaternary Science, 30(8), 754-763. https://doi.org/10.1002/jqs.2808

Raised beach deposits around the Irish coast have been interpreted as interglacial or last glacial in age. On the south coast of Ireland, the Courtmacsherry Formation raised beach (CFB), near Fethard, County Wexford, was dated using optically stimula... Read More about A Marine Isotope Stage 4 age for Pleistocene raised beach deposits near Fethard, southern Ireland.

Ice sheet extension to the Celtic Sea shelf edge at the Last Glacial Maximum (2015)
Journal Article
Praeg, D., McCarron, S., Dove, D., Ó Cofaigh, C., Scott, G., Monteys, X., …Coxon, P. (2015). Ice sheet extension to the Celtic Sea shelf edge at the Last Glacial Maximum. Quaternary Science Reviews, 111, 107-112. https://doi.org/10.1016/j.quascirev.2014.12.010

Previous reconstructions of the British–Irish Ice Sheet (BIIS) envisage ice streaming from the Irish Sea to the Celtic Sea at the Last Glacial Maximum, to a limit on the mid-shelf of the Irish-UK sectors. We present evidence from sediment cores and g... Read More about Ice sheet extension to the Celtic Sea shelf edge at the Last Glacial Maximum.

Reconstruction of ice-sheet changes in the Antarctic Peninsula since the Last Glacial Maximum (2014)
Journal Article
Ó Cofaigh, C., Davies, B., Livingstone, S., Smith, J., Johnson, J., Hocking, E., …Simms, A. (2014). Reconstruction of ice-sheet changes in the Antarctic Peninsula since the Last Glacial Maximum. Quaternary Science Reviews, 100, 87-110. https://doi.org/10.1016/j.quascirev.2014.06.023

This paper compiles and reviews marine and terrestrial data constraining the dimensions and configuration of the Antarctic Peninsula Ice Sheet (APIS) from the Last Glacial Maximum (LGM) through deglaciation to the present day. These data are used to... Read More about Reconstruction of ice-sheet changes in the Antarctic Peninsula since the Last Glacial Maximum.

Glacial history of sub-Antarctic South Georgia based on the submarine geomorphology of its fjords (2014)
Journal Article
Hodgson, D., Graham, A., Griffiths, H., Roberts, S., Ó Cofaigh, C., Bentley, M., & Evans, D. (2014). Glacial history of sub-Antarctic South Georgia based on the submarine geomorphology of its fjords. Quaternary Science Reviews, 89, 129-147. https://doi.org/10.1016/j.quascirev.2013.12.005

We present multibeam swath bathymetric surveys of the major fjords surrounding the sub-Antarctic island of South Georgia to characterise the glacial geomorphology and to identify the relative timings and extent of past glacial advance and retreat. Ba... Read More about Glacial history of sub-Antarctic South Georgia based on the submarine geomorphology of its fjords.

Understanding controls on rapid ice-stream retreat during the last deglaciation of Marguerite Bay, Antarctica, using a numerical model (2014)
Journal Article
Jamieson, S., Vieli, A., Ó Cofaigh, C., Stokes, C., Livingstone, S., & Hillenbrand, C. (2014). Understanding controls on rapid ice-stream retreat during the last deglaciation of Marguerite Bay, Antarctica, using a numerical model. Journal of Geophysical Research: Earth Surface, 119(2), 247-263. https://doi.org/10.1002/2013jf002934

Using a one-dimensional numerical model of ice-stream flow with robust grounding-line dynamics, we explore controls on paleo-ice-stream retreat in Marguerite Bay, Antarctica, during the last deglaciation. Landforms on the continental shelf constrain... Read More about Understanding controls on rapid ice-stream retreat during the last deglaciation of Marguerite Bay, Antarctica, using a numerical model.

Glacial geomorphology of terrestrial- terminating fast flow lobes/ice stream margins in the southwest Laurentide Ice Sheet (2014)
Journal Article
Evans, D., Young, N., & Ó Cofaigh, C. (2014). Glacial geomorphology of terrestrial- terminating fast flow lobes/ice stream margins in the southwest Laurentide Ice Sheet. Geomorphology, 204, 86-113. https://doi.org/10.1016/j.geomorph.2013.07.031

Glacial geomorphological mapping of southern Alberta, Canada, reveals landform assemblages that are diagnostic of terrestrial-terminating ice streams/fast flowing outlet glaciers with lobate snouts. Spatial variability in features that comprise the l... Read More about Glacial geomorphology of terrestrial- terminating fast flow lobes/ice stream margins in the southwest Laurentide Ice Sheet.