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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2014
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Online Access: | http://dro.dur.ac.uk/12662/ http://dro.dur.ac.uk/12662/1/12662.pdf http://dro.dur.ac.uk/12662/2/12662.pdf https://doi.org/10.1016/j.quascirev.2014.06.025 |
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ftunivdurham:oai:dro.dur.ac.uk.OAI2:12662 2023-05-15T13:59:22+02:00 A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum. Bentley, M.J. Ó Cofaigh, C. Anderson, J.B. Conway, H. Davies, B. Graham, A.G.C. Hillenbrand, C.-D. Hodgson, D.A. Jamieson, S.S.R. Larter, R.D. Mackintosh, A. Smith, J.A. Verleyen, E. Ackert, R.P. Bart, P.J. Berg, S. Brunstein, D. Canals, M. Colhoun, E.A. Crosta, X. Dickens, W.A. Domack, E. Dowdeswell, J.A. Dunbar, R. Ehrmann, W. Evans, J. Favier, V. Fink, D. Fogwill, C.J. Glasser, N.F. Gohl, K. Golledge, N.R. Goodwin, I. Gore, D.B. Greenwood, S.L. Hall, B.L. Hall, K. Hedding, D.W. Hein, A.S. Hocking, E.P. Jakobsson, M. Johnson, J.S. Jomelli, V. Jones, R.S. Klages, J.P. Kristoffersen, Y. Kuhn, G. Leventer, A. Licht, K. Lilly, K. Lindow, J. Livingstone, S.J. Massé, G. McGlone, M.S. McKay, R.M. Melles, M. Miura, H. Mulvaney, R. Nel, W. Nitsche, F.O. O’Brien, P.E. Post, A.L. Roberts, S.J. Saunders, K.M. Selkirk, P.M. Simms, A.R. Spiegel, C. Stolldorf, T.D. Sugden, D.E. van der Putten, N. van Ommen, T. Verfaillie, D. Vyverman, W. Wagner, B. White, D.A. Witus, A.E. Zwartz, D. 2014-09-15 application/pdf http://dro.dur.ac.uk/12662/ http://dro.dur.ac.uk/12662/1/12662.pdf http://dro.dur.ac.uk/12662/2/12662.pdf https://doi.org/10.1016/j.quascirev.2014.06.025 unknown Elsevier dro:12662 issn:0277-3791 doi:10.1016/j.quascirev.2014.06.025 http://dro.dur.ac.uk/12662/ http://dx.doi.org/10.1016/j.quascirev.2014.06.025 http://dro.dur.ac.uk/12662/1/12662.pdf http://dro.dur.ac.uk/12662/2/12662.pdf © 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/). CC-BY Quaternary science reviews, 2014, Vol.100, pp.1-9 [Peer Reviewed Journal] Antarctic Ice Sheet Glacial geology Modelling Quaternary Article PeerReviewed 2014 ftunivdurham https://doi.org/10.1016/j.quascirev.2014.06.025 2020-05-28T22:30:51Z 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 20 ka, 15 ka, 10 ka and 5 ka, 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 priorities for future work. The synthesis is intended to be a resource for the modelling and glacial geological community. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet Durham University: Durham Research Online Antarctic The Antarctic Quaternary Science Reviews 100 1 9 |
institution |
Open Polar |
collection |
Durham University: Durham Research Online |
op_collection_id |
ftunivdurham |
language |
unknown |
topic |
Antarctic Ice Sheet Glacial geology Modelling Quaternary |
spellingShingle |
Antarctic Ice Sheet Glacial geology Modelling Quaternary Bentley, M.J. Ó Cofaigh, C. Anderson, J.B. Conway, H. Davies, B. Graham, A.G.C. Hillenbrand, C.-D. Hodgson, D.A. Jamieson, S.S.R. Larter, R.D. Mackintosh, A. Smith, J.A. Verleyen, E. Ackert, R.P. Bart, P.J. Berg, S. Brunstein, D. Canals, M. Colhoun, E.A. Crosta, X. Dickens, W.A. Domack, E. Dowdeswell, J.A. Dunbar, R. Ehrmann, W. Evans, J. Favier, V. Fink, D. Fogwill, C.J. Glasser, N.F. Gohl, K. Golledge, N.R. Goodwin, I. Gore, D.B. Greenwood, S.L. Hall, B.L. Hall, K. Hedding, D.W. Hein, A.S. Hocking, E.P. Jakobsson, M. Johnson, J.S. Jomelli, V. Jones, R.S. Klages, J.P. Kristoffersen, Y. Kuhn, G. Leventer, A. Licht, K. Lilly, K. Lindow, J. Livingstone, S.J. Massé, G. McGlone, M.S. McKay, R.M. Melles, M. Miura, H. Mulvaney, R. Nel, W. Nitsche, F.O. O’Brien, P.E. Post, A.L. Roberts, S.J. Saunders, K.M. Selkirk, P.M. Simms, A.R. Spiegel, C. Stolldorf, T.D. Sugden, D.E. van der Putten, N. van Ommen, T. Verfaillie, D. Vyverman, W. Wagner, B. White, D.A. Witus, A.E. Zwartz, D. A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum. |
topic_facet |
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 20 ka, 15 ka, 10 ka and 5 ka, 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 priorities for future work. The synthesis is intended to be a resource for the modelling and glacial geological community. |
format |
Article in Journal/Newspaper |
author |
Bentley, M.J. Ó Cofaigh, C. Anderson, J.B. Conway, H. Davies, B. Graham, A.G.C. Hillenbrand, C.-D. Hodgson, D.A. Jamieson, S.S.R. Larter, R.D. Mackintosh, A. Smith, J.A. Verleyen, E. Ackert, R.P. Bart, P.J. Berg, S. Brunstein, D. Canals, M. Colhoun, E.A. Crosta, X. Dickens, W.A. Domack, E. Dowdeswell, J.A. Dunbar, R. Ehrmann, W. Evans, J. Favier, V. Fink, D. Fogwill, C.J. Glasser, N.F. Gohl, K. Golledge, N.R. Goodwin, I. Gore, D.B. Greenwood, S.L. Hall, B.L. Hall, K. Hedding, D.W. Hein, A.S. Hocking, E.P. Jakobsson, M. Johnson, J.S. Jomelli, V. Jones, R.S. Klages, J.P. Kristoffersen, Y. Kuhn, G. Leventer, A. Licht, K. Lilly, K. Lindow, J. Livingstone, S.J. Massé, G. McGlone, M.S. McKay, R.M. Melles, M. Miura, H. Mulvaney, R. Nel, W. Nitsche, F.O. O’Brien, P.E. Post, A.L. Roberts, S.J. Saunders, K.M. Selkirk, P.M. Simms, A.R. Spiegel, C. Stolldorf, T.D. Sugden, D.E. van der Putten, N. van Ommen, T. Verfaillie, D. Vyverman, W. Wagner, B. White, D.A. Witus, A.E. Zwartz, D. |
author_facet |
Bentley, M.J. Ó Cofaigh, C. Anderson, J.B. Conway, H. Davies, B. Graham, A.G.C. Hillenbrand, C.-D. Hodgson, D.A. Jamieson, S.S.R. Larter, R.D. Mackintosh, A. Smith, J.A. Verleyen, E. Ackert, R.P. Bart, P.J. Berg, S. Brunstein, D. Canals, M. Colhoun, E.A. Crosta, X. Dickens, W.A. Domack, E. Dowdeswell, J.A. Dunbar, R. Ehrmann, W. Evans, J. Favier, V. Fink, D. Fogwill, C.J. Glasser, N.F. Gohl, K. Golledge, N.R. Goodwin, I. Gore, D.B. Greenwood, S.L. Hall, B.L. Hall, K. Hedding, D.W. Hein, A.S. Hocking, E.P. Jakobsson, M. Johnson, J.S. Jomelli, V. Jones, R.S. Klages, J.P. Kristoffersen, Y. Kuhn, G. Leventer, A. Licht, K. Lilly, K. Lindow, J. Livingstone, S.J. Massé, G. McGlone, M.S. McKay, R.M. Melles, M. Miura, H. Mulvaney, R. Nel, W. Nitsche, F.O. O’Brien, P.E. Post, A.L. Roberts, S.J. Saunders, K.M. Selkirk, P.M. Simms, A.R. Spiegel, C. Stolldorf, T.D. Sugden, D.E. van der Putten, N. van Ommen, T. Verfaillie, D. Vyverman, W. Wagner, B. White, D.A. Witus, A.E. Zwartz, D. |
author_sort |
Bentley, M.J. |
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. |
publisher |
Elsevier |
publishDate |
2014 |
url |
http://dro.dur.ac.uk/12662/ http://dro.dur.ac.uk/12662/1/12662.pdf http://dro.dur.ac.uk/12662/2/12662.pdf https://doi.org/10.1016/j.quascirev.2014.06.025 |
geographic |
Antarctic The Antarctic |
geographic_facet |
Antarctic The Antarctic |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_source |
Quaternary science reviews, 2014, Vol.100, pp.1-9 [Peer Reviewed Journal] |
op_relation |
dro:12662 issn:0277-3791 doi:10.1016/j.quascirev.2014.06.025 http://dro.dur.ac.uk/12662/ http://dx.doi.org/10.1016/j.quascirev.2014.06.025 http://dro.dur.ac.uk/12662/1/12662.pdf http://dro.dur.ac.uk/12662/2/12662.pdf |
op_rights |
© 2014 The Authors. Published by Elsevier Ltd. This is an open access article under the CC BY license (http://creativecommons.org/licenses/by/3.0/). |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1016/j.quascirev.2014.06.025 |
container_title |
Quaternary Science Reviews |
container_volume |
100 |
container_start_page |
1 |
op_container_end_page |
9 |
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1766267916985040896 |