Climatic Variability in the Southwest Pacific During the Last Termination (20-10 Kyr BP)
The degree to which palaeoclimatic changes in the Southern Hemisphere co-varied with events in the high latitude Northern Hemisphere during the Last Termination is a contentious issue, with conflicting evidence for the degree of 'teleconnection' between different regions of the Southern He...
Published in: | Quaternary Science Reviews |
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Online Access: | http://hdl.handle.net/1885/81208 https://doi.org/10.1016/j.quascirev.2005.09.007 https://openresearch-repository.anu.edu.au/bitstream/1885/81208/5/climatic%2Bvariability.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/81208/7/01_Turney_Climatic_Variability_in_the_2006.pdf.jpg |
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ftanucanberra:oai:openresearch-repository.anu.edu.au:1885/81208 2024-01-14T10:00:21+01:00 Climatic Variability in the Southwest Pacific During the Last Termination (20-10 Kyr BP) Turney, Christian Kershaw, Arnold Peter Lowe, J van der Kaars, Willem Alexander (Sander) Johnston, R Rule, S Moss, Patrick Radke, L. Tibby, John McGlone, M Wilmshurst, Janet M Vandergoes, M Fitzsimons, S. Bryant, C James, S Branch, N. Cowley, Joan Kalin, R M Ogle, N Jacobsen, Geraldine Fifield, L Keith http://hdl.handle.net/1885/81208 https://doi.org/10.1016/j.quascirev.2005.09.007 https://openresearch-repository.anu.edu.au/bitstream/1885/81208/5/climatic%2Bvariability.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/81208/7/01_Turney_Climatic_Variability_in_the_2006.pdf.jpg unknown Pergamon-Elsevier Ltd 0277-3791 http://hdl.handle.net/1885/81208 doi:10.1016/j.quascirev.2005.09.007 https://openresearch-repository.anu.edu.au/bitstream/1885/81208/5/climatic%2Bvariability.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/81208/7/01_Turney_Climatic_Variability_in_the_2006.pdf.jpg Quaternary Science Reviews Keywords: Constraint theory Geochronology Global warming Mathematical models Sea ice Telecommunication systems Antarctic ice Geochronological constraints Radiocarbon dating Climate change global climate paleoclimate t Journal article ftanucanberra https://doi.org/10.1016/j.quascirev.2005.09.007 2023-12-15T09:33:32Z The degree to which palaeoclimatic changes in the Southern Hemisphere co-varied with events in the high latitude Northern Hemisphere during the Last Termination is a contentious issue, with conflicting evidence for the degree of 'teleconnection' between different regions of the Southern Hemisphere. The available hypotheses are difficult to test robustly, however, because there are few detailed palaeoclimatic records in the Southern Hemisphere. Here we present climatic reconstructions from the southwestern Pacific, a key region in the Southern Hemisphere because of the potentially important role it plays in global climate change. The reconstructions for the period 20-10 kyr BP were obtained from five sites along a transect from southern New Zealand, through Australia to Indonesia, supported by 125 calibrated 14C ages. Two periods of significant climatic change can be identified across the region at around 17 and 14.2 cal kyr BP, most probably associated with the onset of warming in the West Pacific Warm Pool and the collapse of Antarctic ice during Meltwater Pulse-1A, respectively. The severe geochronological constraints that inherently afflict age models based on radiocarbon dating and the lack of quantified climatic parameters make more detailed interpretations problematic, however. There is an urgent need to address the geochronological limitations, and to develop more precise and quantified estimates of the pronounced climate variations that clearly affected this region during the Last Termination. Article in Journal/Newspaper Antarc* Antarctic Sea ice Australian National University: ANU Digital Collections Antarctic Pacific New Zealand Quaternary Science Reviews 25 9-10 886 903 |
institution |
Open Polar |
collection |
Australian National University: ANU Digital Collections |
op_collection_id |
ftanucanberra |
language |
unknown |
topic |
Keywords: Constraint theory Geochronology Global warming Mathematical models Sea ice Telecommunication systems Antarctic ice Geochronological constraints Radiocarbon dating Climate change global climate paleoclimate t |
spellingShingle |
Keywords: Constraint theory Geochronology Global warming Mathematical models Sea ice Telecommunication systems Antarctic ice Geochronological constraints Radiocarbon dating Climate change global climate paleoclimate t Turney, Christian Kershaw, Arnold Peter Lowe, J van der Kaars, Willem Alexander (Sander) Johnston, R Rule, S Moss, Patrick Radke, L. Tibby, John McGlone, M Wilmshurst, Janet M Vandergoes, M Fitzsimons, S. Bryant, C James, S Branch, N. Cowley, Joan Kalin, R M Ogle, N Jacobsen, Geraldine Fifield, L Keith Climatic Variability in the Southwest Pacific During the Last Termination (20-10 Kyr BP) |
topic_facet |
Keywords: Constraint theory Geochronology Global warming Mathematical models Sea ice Telecommunication systems Antarctic ice Geochronological constraints Radiocarbon dating Climate change global climate paleoclimate t |
description |
The degree to which palaeoclimatic changes in the Southern Hemisphere co-varied with events in the high latitude Northern Hemisphere during the Last Termination is a contentious issue, with conflicting evidence for the degree of 'teleconnection' between different regions of the Southern Hemisphere. The available hypotheses are difficult to test robustly, however, because there are few detailed palaeoclimatic records in the Southern Hemisphere. Here we present climatic reconstructions from the southwestern Pacific, a key region in the Southern Hemisphere because of the potentially important role it plays in global climate change. The reconstructions for the period 20-10 kyr BP were obtained from five sites along a transect from southern New Zealand, through Australia to Indonesia, supported by 125 calibrated 14C ages. Two periods of significant climatic change can be identified across the region at around 17 and 14.2 cal kyr BP, most probably associated with the onset of warming in the West Pacific Warm Pool and the collapse of Antarctic ice during Meltwater Pulse-1A, respectively. The severe geochronological constraints that inherently afflict age models based on radiocarbon dating and the lack of quantified climatic parameters make more detailed interpretations problematic, however. There is an urgent need to address the geochronological limitations, and to develop more precise and quantified estimates of the pronounced climate variations that clearly affected this region during the Last Termination. |
format |
Article in Journal/Newspaper |
author |
Turney, Christian Kershaw, Arnold Peter Lowe, J van der Kaars, Willem Alexander (Sander) Johnston, R Rule, S Moss, Patrick Radke, L. Tibby, John McGlone, M Wilmshurst, Janet M Vandergoes, M Fitzsimons, S. Bryant, C James, S Branch, N. Cowley, Joan Kalin, R M Ogle, N Jacobsen, Geraldine Fifield, L Keith |
author_facet |
Turney, Christian Kershaw, Arnold Peter Lowe, J van der Kaars, Willem Alexander (Sander) Johnston, R Rule, S Moss, Patrick Radke, L. Tibby, John McGlone, M Wilmshurst, Janet M Vandergoes, M Fitzsimons, S. Bryant, C James, S Branch, N. Cowley, Joan Kalin, R M Ogle, N Jacobsen, Geraldine Fifield, L Keith |
author_sort |
Turney, Christian |
title |
Climatic Variability in the Southwest Pacific During the Last Termination (20-10 Kyr BP) |
title_short |
Climatic Variability in the Southwest Pacific During the Last Termination (20-10 Kyr BP) |
title_full |
Climatic Variability in the Southwest Pacific During the Last Termination (20-10 Kyr BP) |
title_fullStr |
Climatic Variability in the Southwest Pacific During the Last Termination (20-10 Kyr BP) |
title_full_unstemmed |
Climatic Variability in the Southwest Pacific During the Last Termination (20-10 Kyr BP) |
title_sort |
climatic variability in the southwest pacific during the last termination (20-10 kyr bp) |
publisher |
Pergamon-Elsevier Ltd |
url |
http://hdl.handle.net/1885/81208 https://doi.org/10.1016/j.quascirev.2005.09.007 https://openresearch-repository.anu.edu.au/bitstream/1885/81208/5/climatic%2Bvariability.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/81208/7/01_Turney_Climatic_Variability_in_the_2006.pdf.jpg |
geographic |
Antarctic Pacific New Zealand |
geographic_facet |
Antarctic Pacific New Zealand |
genre |
Antarc* Antarctic Sea ice |
genre_facet |
Antarc* Antarctic Sea ice |
op_source |
Quaternary Science Reviews |
op_relation |
0277-3791 http://hdl.handle.net/1885/81208 doi:10.1016/j.quascirev.2005.09.007 https://openresearch-repository.anu.edu.au/bitstream/1885/81208/5/climatic%2Bvariability.pdf.jpg https://openresearch-repository.anu.edu.au/bitstream/1885/81208/7/01_Turney_Climatic_Variability_in_the_2006.pdf.jpg |
op_doi |
https://doi.org/10.1016/j.quascirev.2005.09.007 |
container_title |
Quaternary Science Reviews |
container_volume |
25 |
container_issue |
9-10 |
container_start_page |
886 |
op_container_end_page |
903 |
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1788065157409144832 |