A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum
A robust understanding of Antarctic Ice Sheet deglacial history since the Last Glacial Maximum is important in order to constrain ice sheet and glacial-isostatic adjustment models, and to explore the forcing mechanisms responsible for ice sheet retreat. Such understanding can be derived from a broad...
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ftloughboroughun:oai:figshare.com:article/9483029 2023-05-15T13:35:35+02:00 A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum Michael J. Bentley Colm O Cofaigh John B. Anderson Howard Conway Bethan J. Davies Alastair G.C. Graham Claus-Dieter Hillenbrand Dominic A. Hodgson Stewart S.R. Jamieson Robert D. Larter Andrew Mackintosh James A. Smith Elie Verleyen Robert P. Ackert Philip J. Bart Sonja Berg Daniel Brunstein M. Canals Eric A. Colhoun Xavier Crosta William A. Dickens Eugene Domack Julian A. Dowdeswell Robert Dunbar Werner Ehrmann Jeffrey Evans Vincent Favier David Fink Christopher J. Favier Neil F. Glasser Karsten Gohl Nicholas R. Golledge Ian Goodwin Damian B. Gore Sarah L. Greenwood Brehda L. Hall Kevin Hall David W. Hedding AndrewS. Hein Emma P. Hocking Martin Jakobsson Joanne S. Johnson Vincent Jomelli R. Selwyn Jones Johann P. Klages Yngve Kristoffersen Gerhard Kuhn Amy Leventer Kathy Licht Katherine Lilly 2014-01-01T00:00:00Z https://figshare.com/articles/journal_contribution/A_community-based_geological_reconstruction_of_Antarctic_Ice_Sheet_deglaciation_since_the_Last_Glacial_Maximum/9483029 unknown 2134/17831 https://figshare.com/articles/journal_contribution/A_community-based_geological_reconstruction_of_Antarctic_Ice_Sheet_deglaciation_since_the_Last_Glacial_Maximum/9483029 CC BY 3.0 CC-BY Earth Sciences not elsewhere classified Antarctic Ice Sheet Glacial geology Modelling Quaternary Text Journal contribution 2014 ftloughboroughun 2022-01-01T20:21:22Z A robust understanding of Antarctic Ice Sheet deglacial history since the Last Glacial Maximum is important in order to constrain ice sheet and glacial-isostatic adjustment models, and to explore the forcing mechanisms responsible for ice sheet retreat. Such understanding can be derived from a broad range of geological and glaciological datasets and recent decades have seen an upsurge in such data gathering around the continent and Sub-Antarctic islands. Here, we report a new synthesis of those datasets, based on an accompanying series of reviews of the geological data, organised by sector. We present a series of timeslice maps for 20ka, 15ka, 10ka and 5ka, including grounding line position and ice sheet thickness changes, along with a clear assessment of levels of confidence. The reconstruction shows that the Antarctic Ice sheet did not everywhere reach the continental shelf edge at its maximum, that initial retreat was asynchronous, and that the spatial pattern of deglaciation was highly variable, particularly on the inner shelf. The deglacial reconstruction is consistent with a moderate overall excess ice volume and with a relatively small Antarctic contribution to meltwater pulse 1a. We discuss key areas of uncertainty both around the continent and by time interval, and we highlight potential priorit. © 2014 The Authors. Other Non-Article Part of Journal/Newspaper Antarc* Antarctic Ice Sheet Loughborough University: Figshare Antarctic The Antarctic |
institution |
Open Polar |
collection |
Loughborough University: Figshare |
op_collection_id |
ftloughboroughun |
language |
unknown |
topic |
Earth Sciences not elsewhere classified Antarctic Ice Sheet Glacial geology Modelling Quaternary |
spellingShingle |
Earth Sciences not elsewhere classified Antarctic Ice Sheet Glacial geology Modelling Quaternary Michael J. Bentley Colm O Cofaigh John B. Anderson Howard Conway Bethan J. Davies Alastair G.C. Graham Claus-Dieter Hillenbrand Dominic A. Hodgson Stewart S.R. Jamieson Robert D. Larter Andrew Mackintosh James A. Smith Elie Verleyen Robert P. Ackert Philip J. Bart Sonja Berg Daniel Brunstein M. Canals Eric A. Colhoun Xavier Crosta William A. Dickens Eugene Domack Julian A. Dowdeswell Robert Dunbar Werner Ehrmann Jeffrey Evans Vincent Favier David Fink Christopher J. Favier Neil F. Glasser Karsten Gohl Nicholas R. Golledge Ian Goodwin Damian B. Gore Sarah L. Greenwood Brehda L. Hall Kevin Hall David W. Hedding AndrewS. Hein Emma P. Hocking Martin Jakobsson Joanne S. Johnson Vincent Jomelli R. Selwyn Jones Johann P. Klages Yngve Kristoffersen Gerhard Kuhn Amy Leventer Kathy Licht Katherine Lilly A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
topic_facet |
Earth Sciences not elsewhere classified Antarctic Ice Sheet Glacial geology Modelling Quaternary |
description |
A robust understanding of Antarctic Ice Sheet deglacial history since the Last Glacial Maximum is important in order to constrain ice sheet and glacial-isostatic adjustment models, and to explore the forcing mechanisms responsible for ice sheet retreat. Such understanding can be derived from a broad range of geological and glaciological datasets and recent decades have seen an upsurge in such data gathering around the continent and Sub-Antarctic islands. Here, we report a new synthesis of those datasets, based on an accompanying series of reviews of the geological data, organised by sector. We present a series of timeslice maps for 20ka, 15ka, 10ka and 5ka, including grounding line position and ice sheet thickness changes, along with a clear assessment of levels of confidence. The reconstruction shows that the Antarctic Ice sheet did not everywhere reach the continental shelf edge at its maximum, that initial retreat was asynchronous, and that the spatial pattern of deglaciation was highly variable, particularly on the inner shelf. The deglacial reconstruction is consistent with a moderate overall excess ice volume and with a relatively small Antarctic contribution to meltwater pulse 1a. We discuss key areas of uncertainty both around the continent and by time interval, and we highlight potential priorit. © 2014 The Authors. |
format |
Other Non-Article Part of Journal/Newspaper |
author |
Michael J. Bentley Colm O Cofaigh John B. Anderson Howard Conway Bethan J. Davies Alastair G.C. Graham Claus-Dieter Hillenbrand Dominic A. Hodgson Stewart S.R. Jamieson Robert D. Larter Andrew Mackintosh James A. Smith Elie Verleyen Robert P. Ackert Philip J. Bart Sonja Berg Daniel Brunstein M. Canals Eric A. Colhoun Xavier Crosta William A. Dickens Eugene Domack Julian A. Dowdeswell Robert Dunbar Werner Ehrmann Jeffrey Evans Vincent Favier David Fink Christopher J. Favier Neil F. Glasser Karsten Gohl Nicholas R. Golledge Ian Goodwin Damian B. Gore Sarah L. Greenwood Brehda L. Hall Kevin Hall David W. Hedding AndrewS. Hein Emma P. Hocking Martin Jakobsson Joanne S. Johnson Vincent Jomelli R. Selwyn Jones Johann P. Klages Yngve Kristoffersen Gerhard Kuhn Amy Leventer Kathy Licht Katherine Lilly |
author_facet |
Michael J. Bentley Colm O Cofaigh John B. Anderson Howard Conway Bethan J. Davies Alastair G.C. Graham Claus-Dieter Hillenbrand Dominic A. Hodgson Stewart S.R. Jamieson Robert D. Larter Andrew Mackintosh James A. Smith Elie Verleyen Robert P. Ackert Philip J. Bart Sonja Berg Daniel Brunstein M. Canals Eric A. Colhoun Xavier Crosta William A. Dickens Eugene Domack Julian A. Dowdeswell Robert Dunbar Werner Ehrmann Jeffrey Evans Vincent Favier David Fink Christopher J. Favier Neil F. Glasser Karsten Gohl Nicholas R. Golledge Ian Goodwin Damian B. Gore Sarah L. Greenwood Brehda L. Hall Kevin Hall David W. Hedding AndrewS. Hein Emma P. Hocking Martin Jakobsson Joanne S. Johnson Vincent Jomelli R. Selwyn Jones Johann P. Klages Yngve Kristoffersen Gerhard Kuhn Amy Leventer Kathy Licht Katherine Lilly |
author_sort |
Michael J. Bentley |
title |
A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
title_short |
A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
title_full |
A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
title_fullStr |
A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
title_full_unstemmed |
A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
title_sort |
community-based geological reconstruction of antarctic ice sheet deglaciation since the last glacial maximum |
publishDate |
2014 |
url |
https://figshare.com/articles/journal_contribution/A_community-based_geological_reconstruction_of_Antarctic_Ice_Sheet_deglaciation_since_the_Last_Glacial_Maximum/9483029 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_relation |
2134/17831 https://figshare.com/articles/journal_contribution/A_community-based_geological_reconstruction_of_Antarctic_Ice_Sheet_deglaciation_since_the_Last_Glacial_Maximum/9483029 |
op_rights |
CC BY 3.0 |
op_rightsnorm |
CC-BY |
_version_ |
1766067470204928000 |