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...
Published in: | Quaternary Science Reviews |
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2014
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Online Access: | http://hdl.handle.net/1959.4/unsworks_37175 https://doi.org/10.1016/j.quascirev.2014.06.025 |
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ftunswworks:oai:unsworks.library.unsw.edu.au:1959.4/unsworks_37175 2024-05-19T07:32:09+00:00 A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum Bentley, MJ Ocofaigh, C Anderson, JB Conway, H Davies, B Graham, AGC Hillenbrand, CD Hodgson, DA Jamieson, SSR Larter, RD Mackintosh, A Smith, JA Verleyen, E Ackert, RP Bart, PJ Berg, S Brunstein, D Canals, M Colhoun, EA Crosta, X Dickens, WA Domack, E Dowdeswell, JA Dunbar, R Ehrmann, W Evans, J Favier, V Fink, D Fogwill, CJ Glasser, NF Gohl, K Golledge, NR Goodwin, I Gore, DB Greenwood, SL Hall, BL Hall, K Hedding, DW Hein, AS Hocking, EP Jakobsson, M Johnson, JS Jomelli, V Jones, RS Klages, JP Kristoffersen, Y Kuhn, G Leventer, A Licht, K Lilly, K Lindow, J Livingstone, SJ Massé, G McGlone, MS McKay, RM Melles, M Miura, H Mulvaney, R Nel, W Nitsche, FO O'Brien, PE Post, AL Roberts, SJ Saunders, KM Selkirk, PM Simms, AR Spiegel, C Stolldorf, TD Sugden, DE van der Putten, N van Ommen, T Verfaillie, D Vyverman, W Wagner, B White, DA Witus, AE Zwartz, D 2014-09-15 http://hdl.handle.net/1959.4/unsworks_37175 https://doi.org/10.1016/j.quascirev.2014.06.025 unknown Elsevier http://purl.org/au-research/grants/arc/LP120200724 http://purl.org/au-research/grants/arc/FT120100004 http://hdl.handle.net/1959.4/unsworks_37175 https://doi.org/10.1016/j.quascirev.2014.06.025 metadata only access http://purl.org/coar/access_right/c_14cb CC-BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/ urn:ISSN:0277-3791 Quaternary Science Reviews, 100, 1-9 13 Climate Action anzsrc-for: 04 Earth Sciences anzsrc-for: 21 History and Archaeology journal article http://purl.org/coar/resource_type/c_6501 2014 ftunswworks https://doi.org/10.1016/j.quascirev.2014.06.025 2024-05-01T00:11:20Z 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. Article in Journal/Newspaper Antarc* Antarctic Ice Sheet UNSW Sydney (The University of New South Wales): UNSWorks Quaternary Science Reviews 100 1 9 |
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UNSW Sydney (The University of New South Wales): UNSWorks |
op_collection_id |
ftunswworks |
language |
unknown |
topic |
13 Climate Action anzsrc-for: 04 Earth Sciences anzsrc-for: 21 History and Archaeology |
spellingShingle |
13 Climate Action anzsrc-for: 04 Earth Sciences anzsrc-for: 21 History and Archaeology Bentley, MJ Ocofaigh, C Anderson, JB Conway, H Davies, B Graham, AGC Hillenbrand, CD Hodgson, DA Jamieson, SSR Larter, RD Mackintosh, A Smith, JA Verleyen, E Ackert, RP Bart, PJ Berg, S Brunstein, D Canals, M Colhoun, EA Crosta, X Dickens, WA Domack, E Dowdeswell, JA Dunbar, R Ehrmann, W Evans, J Favier, V Fink, D Fogwill, CJ Glasser, NF Gohl, K Golledge, NR Goodwin, I Gore, DB Greenwood, SL Hall, BL Hall, K Hedding, DW Hein, AS Hocking, EP Jakobsson, M Johnson, JS Jomelli, V Jones, RS Klages, JP Kristoffersen, Y Kuhn, G Leventer, A Licht, K Lilly, K Lindow, J Livingstone, SJ Massé, G McGlone, MS McKay, RM Melles, M Miura, H Mulvaney, R Nel, W Nitsche, FO O'Brien, PE Post, AL Roberts, SJ Saunders, KM Selkirk, PM Simms, AR Spiegel, C Stolldorf, TD Sugden, DE van der Putten, N van Ommen, T Verfaillie, D Vyverman, W Wagner, B White, DA Witus, AE Zwartz, D A community-based geological reconstruction of Antarctic Ice Sheet deglaciation since the Last Glacial Maximum |
topic_facet |
13 Climate Action anzsrc-for: 04 Earth Sciences anzsrc-for: 21 History and Archaeology |
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 |
Article in Journal/Newspaper |
author |
Bentley, MJ Ocofaigh, C Anderson, JB Conway, H Davies, B Graham, AGC Hillenbrand, CD Hodgson, DA Jamieson, SSR Larter, RD Mackintosh, A Smith, JA Verleyen, E Ackert, RP Bart, PJ Berg, S Brunstein, D Canals, M Colhoun, EA Crosta, X Dickens, WA Domack, E Dowdeswell, JA Dunbar, R Ehrmann, W Evans, J Favier, V Fink, D Fogwill, CJ Glasser, NF Gohl, K Golledge, NR Goodwin, I Gore, DB Greenwood, SL Hall, BL Hall, K Hedding, DW Hein, AS Hocking, EP Jakobsson, M Johnson, JS Jomelli, V Jones, RS Klages, JP Kristoffersen, Y Kuhn, G Leventer, A Licht, K Lilly, K Lindow, J Livingstone, SJ Massé, G McGlone, MS McKay, RM Melles, M Miura, H Mulvaney, R Nel, W Nitsche, FO O'Brien, PE Post, AL Roberts, SJ Saunders, KM Selkirk, PM Simms, AR Spiegel, C Stolldorf, TD Sugden, DE van der Putten, N van Ommen, T Verfaillie, D Vyverman, W Wagner, B White, DA Witus, AE Zwartz, D |
author_facet |
Bentley, MJ Ocofaigh, C Anderson, JB Conway, H Davies, B Graham, AGC Hillenbrand, CD Hodgson, DA Jamieson, SSR Larter, RD Mackintosh, A Smith, JA Verleyen, E Ackert, RP Bart, PJ Berg, S Brunstein, D Canals, M Colhoun, EA Crosta, X Dickens, WA Domack, E Dowdeswell, JA Dunbar, R Ehrmann, W Evans, J Favier, V Fink, D Fogwill, CJ Glasser, NF Gohl, K Golledge, NR Goodwin, I Gore, DB Greenwood, SL Hall, BL Hall, K Hedding, DW Hein, AS Hocking, EP Jakobsson, M Johnson, JS Jomelli, V Jones, RS Klages, JP Kristoffersen, Y Kuhn, G Leventer, A Licht, K Lilly, K Lindow, J Livingstone, SJ Massé, G McGlone, MS McKay, RM Melles, M Miura, H Mulvaney, R Nel, W Nitsche, FO O'Brien, PE Post, AL Roberts, SJ Saunders, KM Selkirk, PM Simms, AR Spiegel, C Stolldorf, TD Sugden, DE van der Putten, N van Ommen, T Verfaillie, D Vyverman, W Wagner, B White, DA Witus, AE Zwartz, D |
author_sort |
Bentley, MJ |
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://hdl.handle.net/1959.4/unsworks_37175 https://doi.org/10.1016/j.quascirev.2014.06.025 |
genre |
Antarc* Antarctic Ice Sheet |
genre_facet |
Antarc* Antarctic Ice Sheet |
op_source |
urn:ISSN:0277-3791 Quaternary Science Reviews, 100, 1-9 |
op_relation |
http://purl.org/au-research/grants/arc/LP120200724 http://purl.org/au-research/grants/arc/FT120100004 http://hdl.handle.net/1959.4/unsworks_37175 https://doi.org/10.1016/j.quascirev.2014.06.025 |
op_rights |
metadata only access http://purl.org/coar/access_right/c_14cb CC-BY-NC-ND https://creativecommons.org/licenses/by-nc-nd/4.0/ |
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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1799470114637086720 |